Orr89RocZ

iTrader: (20)

Finally decided to redo my exhaust.

took out my FLowmaster 80 series. i love the flowmaster.. it was nice but i wanted more! more flow and better deeper more agressive sound

so i orderd the Powerstick from Classic Chambered Exhaust inc
Classic Chambered Exhaust Inc. - Home Page

20inch body.. 25inch overall length. 3inch all the way thru!!!
looks just like this





so i mounted it in the I pipe section just behind the cat converter. i just cut out the flowmaster 3inch piping and slipped the Powerstick into that section.. the powerstick has slip fit ends so the 3inch slide right in with just abit of force on the inlet! i clamped it up. SEE PICS

i cut off the flowmaster over the axle and have the pipe dumped there temporarily. SEE PICS

in the end, i will have a splitter piece fabbed up and have twin tail exits like the flowmaster system did. similar to the GMMG and SLP loudmouth setup where it comes over the axle and splits into two pipes and out the rear.


TEST DRIVE!!!

the sound is awesome. initial startup sounds like a MUCH healther L98. almost mildy cammed at first. then settles down to about flowmaster idle... just abit deeper. but not too much different from the old idle sound. the muffler sounds better once it gets heated up tho..just like most, and the old flow.
took it for a drive to get some gas. under normal driving its actually quiet... just cruising you cant really hear it.. i think its abit quieter than the flowmaster. at higher rpms like 2500rpms when my converter comes up, it sounds about as loud as the flowmaster but has slightly different tone. sounds good tho.

but mash on that gas and let that L98 run wide open and it becomes apparent that something isnt quite right! LOL its more aggressive now, and alittle bit louder.. but not too much. its a good loud. has a deep aggressive tone. not raspy and doesnt gargle/backfire on deceleration. its a GREAT sound. but even more noticeable is the higher rpm pull. the car feels very strong now up topend above 4k rpms all the way to 5K.. thats that straight thru core! i'll track it as soon as the rain stops and track reopens!! i bet i picked up 10hp. its almost like straight pipes without the noise!

i'll get up clips as soon as i can! i highly recommend this exhaust setup


EDIT!! sound clip of start up and idle and few revs!
http://media.putfile.com/Powerstick-...ed-tube-on-L98

short nightime 60mph flyby WOT
http://media.putfile.com/L98-Powerstick-exhaust-flyby

Ltrain925

man see if you can get a video of it please i am about to buy it and i want to see how it sounds on a l98 so its only a little louder than flowmasters? i herd it on a stock 98 camaro with that in the i pipe and it sounded awsome.

Orr89RocZ

iTrader: (20)

yeah i will definately get it on video in action..
heres my old flowmaster flyby.

i'll try and get one up tommorrow! but yeah its louder than the flowmaster.. but i dont think its alot louder..but its noticeable difference in tone and volume. thats the way i think of it. but with the dump under the axle, i guess i tend to hear the exhaust abit more than the old out the bumper exit.. but its definately louder. not anywhere like straight pipe was dumped over the axle like i had for a few days when the clamped on flowmaster fell off LOL but still noticeable on WOT... but i'm still running the stock cat converter. so with a high flow cat, it would be alot louder.

IROCThe5.7L

I can tell you for sure (as you already know), getting a new cat, or pipeing it is going to make it quite a bit louder and i'm sure sound even better.

"its more aggressive now, and alittle bit louder". By the looks of that muffler, I thought it would be way louder. I'm glad you're happy with the new setup.

I noticed you said you put it right after the cat. Isn't it true that where the muffler is located will effect sound? Such as your 80 series just had the tailpipes and then it exited. Where this setup it has quite a bit of pipeing to go through before it exits. Do you think it would be louded if the muffler wasn't in the middle of your exhaust?

Just wondering, thats all. I'm sure you'll see a trap speed difference.

Orr89RocZ

iTrader: (20)

idk.. i think it really would make a difference on where its at. i wouldnt mind it farther away in the rear but i wanted to keep dual exits so i am gonna split it over the axle. if it was in the rear i dotn think i could have dual exits.

i wanted a longer version since i thought 20inches would be WAY to loud.. but it wouldnt fit...but to my surprise it isnt all that bad. its louder than the flow but not too much louder. and i think it sounds better too.

Orr89RocZ

iTrader: (20)

SOUND CLIP ADDED! see above or the link below. i'll get more.


Putfile - Powerstick Chambered tube on L98

Demon355

iTrader: (1)

Oh that sounds so good...


I'm so tempted to do the same with my bullet...

mike1986fyrbird

Sounds pretty nice man.

I have a question.
I have a bullet in my I-Pipe and I absolutely HATE the sound it makes at light-medium throttle at 2000-2300 RPM. It starts clacking/snapping/rap-ing or whatever you want to call it like a farmer truck with Glass packs.

Does this muffler make that sound?

Sounds nice when revved up, if you can answer my question that'd be great.

Orr89RocZ

iTrader: (20)

actually no, i dont think it sounds like that at all at those rpms. i know what ur talkin about tho... i have heard several cars with glasspacks and dont like the sound.

in my vid, the first few throttle blips were to about 2000-2500rpms. it doesnt really sound like that glasspack sound.

and at cruising at 2000-3000rpms, it definately doesnt sound like that

mike1986fyrbird

Awesome.

I think i'm gonna replace the bullet in the I-Pipe with the 26"case/31"overall 3" muffler.

I measured and it looks like it will fit. I already have dual outlets. The TSP rumbler is just like the SLP loudmouth.. muffler in the I-pipe, single over axle then Y'd into two tips.

Should quiet it down quite a bit since the Dynomax race bullet is only 18" long and dynomax advertises it as being only 2-4db quieter then a straight pipe.

I mostly want a good tone.

Orr89RocZ

iTrader: (20)

well i dont consider my car all that loud.. it does sound decent and only is abit louder than the 80 series flow. i'm not sure how well the 26 inch version will fit. it will be close. you'd have to connect it just by the cat and just before the i pipe starts to bend to go over the axle. it be a close fit. i personally like the 20inch version. its ALOT quieter than straight pipe. and also quieter than u'd expect this muffler to be. but its got a nice tone and good volume once u get on it

irocbirdbuilder

man, you suck i had mine on first....but fighting to get the car started i havent heard it yet.....i'll get clips of mine i'm running the 16" in the stock muffler location, mine is behind a set of tes, headers and ypipe, 3" catco cat and full 3" all the way back, i just have a dump off the outlet.....i was gonna get a tail pipe bent to keep it hidden but it looks so nasty pro stree with the dump....as i said fighting every part of this car to get it running....as soon as it is you'll have pics, videos and sounds

Orr89RocZ

iTrader: (20)

haha good luck with that man.. i hope u get it up and running soon. should be badass. you have a very nice car bytheway

IROCZTWENTYGR8

iTrader: (1)

I kinda like it. I think you should do a video like you did with your Flowmaster exhaust to compare though, I liked that alot too.

Orr89RocZ

iTrader: (20)

yeah, i'll definately get a flyby vid and some other action vids. the car really rides out well now. it spins tires easily in first gear now... it never did this before. i hope it was just the weather and cold roads but the car is almost useless in first gear now.

83 Crossfire TA

iTrader: (2)

Huh, I’m a bit stumped with their performance numbers published on their site. They only compare their numbers to “stock muffler” numbers and show a big gain, but I’m wondering what kind of muffler is a “stock muffler” for a cobra kit car and I’m guessing that this is in comparison to their 3” chambered setup (I’m assuming duals since the thing has sidepipes). If you compare the open header numbers to their numbers they’re showing some big losses for dual 3” on a 500hp engine (a little quick spreadsheet using the numbers off their site):


It would be nice if you guys posted some before and after performance numbers… they sound great.

Oh, another thing, you mentioned that you had the medium length 3” PN, on the site it only lists the longest length 3” PN as having a 3” core, did yours have a 3” core or a 2.5”? (interesting that the box in the pic lists it as a 2.5” in and out)

RMK

I'd love to hear a sound clip of it at WOT.

IROCZTWENTYGR8

iTrader: (1)

Orr, if I read your sig right, you went slightly faster with the Flowmaster 80 Series over the straight through chambered muffler. Is that correct?

Orr89RocZ

iTrader: (20)

that pic of the box isnt mine. its the pic off the site

mine is the 3026SB
Classic Chambered Exhaust Inc. - Products

its listed there on the site. 20inch body, 3inch all the way thru.. it was a true 3inch. i measured.

before with the flowmaster.. i trapped about 77-78mph in the summer.. and 79-80 in the fall in the 1/8 mile. 1/4 mile was 97-98mph summer and 100.9mph best in the fall weather but consistant 100.x mph.

last trip to the track was may 6 for me.. i cut 1.937 60 foot and ran 8.86 at 77.6mph 1/8 and 13.88 at 98mph. there was no wheel spin on this good run.. my new best. was running 13.98 at 97.x on the other run with a tad of wheel spin.

in the fall i ran 13.98 as well at 100.87mph as my best but again, 1.94 60 foot. and no slip.

i only got 3 runs in with the new exhaust so far.. but it was hotter and more humid than may 6.
I ran 13.93 at 97.22mph with 1.97 60 foot with wheel spin. 8.88 at 74.33 mph 1/8.
best run that night was 13.90 at 98.25mph, 8.89 at 74.88mph 1/8 mile. but all on a 1.99 60 foot no spin.

so i'm running worse 60 foot times but keepin similar times than before in abit hotter weather. i am lookin to pick up in better weather. my 1/8 mph has dropped abit and i blame that on torque loss from lost back pressure i guess...but my top end has improved alot as i kept same trap times. as before but in hotter weather.

IROCZTWENTYGR8

iTrader: (1)

I just hope it's a lesson to those that think Flowmasters will make your car slow or whatever other nonsense people try to blame them for. They flow better than people think.

Orr89RocZ

iTrader: (20)

yes they do flow pretty good....better than most think. but i still picked up some power up top which to me seems worth it and the sound i have to say is better. its too early to tell tho, i gotta get some more track time with the new exhaust in good weather.

something is wrong with the car now, it simply wont hook up. it used to hook decent on the street, now i cant hook for crap. like literally over night, the car is a whole new car after the exhaust install, so i dont know what happend. it just spins so much now. so i'll have to play around with it to see if something is wrong or if the tires are just too worn now and cant grip anymore but i dont think its that reason, as i used these same brand tires before to get 1.89-93 60 foots with 2.77 gears and they were in worse shape than the tires i have on now. . i think the car has alot left in it tho. i just gotta see.

83 Crossfire TA

iTrader: (2)

Well, that’s where I got it, at the top of that page it says:
Which would imply that the others are not 3” all the way throught… but you said that yours was (that’s really all that matters, their page might just be confusing)

Well, I’ll have to disagree with you guys there, the 80 series flowmastter mufflers are pretty much junk. They sound great for those that are just looking for loud and like the flowmaster sound, but flow horribly. I know someone that had one flowed on a flowbench vs a stock 4th gen muffler and got results that matched what his dyno runs showed (back to back runs, only difference was the 80 series with the matching flowmaster tailpipes vs a factory muffler and smaller factory pipes and the flowmaster was down 12hp)

But at least we’ve confirmed that it looks like a single 3” is less restrictive then an 80 series on a roughly 250-275hp car.

I’m thinking of running 2 3” ones behind a turbocarged 350… I’m not convinced that they’ll work better then 2 3” bullets or glasspacks (I am convinced that they’ll probably sound better), I’m not even sure that they’ll be better then the single race magnum on the car now…

IROCThe5.7L

Like I keep saying, on a stockish L98, just go with what sounds best. I'm not saying his new muffler is no better then an 80 series. I'm sure just by looking at the design it's going to flow better. The point is, when people say things like "They are Junk", "They flow worse than a stock muffler" is NOT correct (I'll believe it if I see hard data). If an 80 series flowed worse then a stock muffler (down 12 hp is A LOT!), I’m sure he would have seen a larger increase in performance upgrading to the new muffler. And to be honest, his track times are a lot more credible than hear say.


I'm not trying to rag on his new muffler. I think it sounds awesome. And if you had a car putting down something like 400 rwhp, I'm sure you'd see quite a difference between the mufflers.

Orr89RocZ

iTrader: (20)

exactly fella's... on a mild engine, theres only so much an exhaust will give ya. on something alot more aggressive and powerful, yes, you would see alot more difference on the two.

but i did pick up some power.. i just need abit better weather and abit more traction to prove it.

i got a set of factory Irocz rims on the way and plannin to mount ET streets or BFG drag radials on them. lol. hoping for atleast 13.5's


wow thats crazy.. i got my flowmaster 80 series sittin the garage.. anyone want it to flow test? i would be curious to see how it does. i dont think you could use it for the car unless you have a good exhaust shop.. cuz the slip fits have been welded together so you would have to connect two 3inch pipes together and weld around the joint/seam.

your right, bullets have no restriction in them. these chambered tubes have those little fins stickin up to create some turbulence to make some of that chambered tube sound. so it probly wont flow as much..but it would have a better tone. bullets have that very aggressive raspy note, which i like but its very loud. these mufflers will have abit better tone i think

Ltrain925

get a fly by video im about to buy a catback and i don't know what to buy im ready to get a powerstick but i keep getting drawn to GMMG, i just want to do everything right on my car so thats why i wana hear it thanks.

Orr89RocZ

iTrader: (20)

i'm tryin to get a flyby video up sooon but my camera broke! somehow so i'm gettin it checked out to see whats up. i have no idea what happened

anyway, i think the exhaust has gotten abit louder... sorta like how my old flowmaster did after a month of driving or so. its really mean and deep now

87TPI350KID

throw some slicks on there and stuff a cam on that car and go kill some vettes

Orr89RocZ

iTrader: (20)

ET streets are coming... but no cam for this car.. this car will be only full bolt ons till i get enough to build up the motor or swap in a LS1....... if i keep the car....

superbee

any update man?

Orr89RocZ

iTrader: (20)

nope nothing yet, my camera broke and i'm not gettin a new one quite yet

but i will by dynoing the car the 23rd...and it will be on video.

D's89IROCZ

man that sounds sweet. check my clip see what you think. I wnet single in/out 3" but it's in the stock location .

SLP 1.75 headers 3"corvette C-5 cat ... 3"i pipe

Wonder if running it in the stock location would change the sound of it ???? Might switch to one

Orr89RocZ

iTrader: (20)

that sounds pretty good. i also wondered if stock location would change the sound that much. i'll be addin a high flow cat or no cat at all, and more piping to complete the system sometime as well

DocHoliday

I am getting mine installed in the stock location in 2 days. Hooker 2055s, Catco high flow cat, 3 inch dynomax I-pipe, and 3 inch chambered tube. I'll get some clips up asap!

Demon355

iTrader: (1)

I want your muffler Orr89RocZ.

You think mounting that muffler in the stock location will give the same sound or a more mellow sound? I'll be needing a new setup and I already have a Bullet waiting to go on but I just love the sound of the GMMG/Chambered mufflers. Sound clip with the rest of the exhaust put on your car is very much needed

Orr89RocZ

iTrader: (20)

i dont really know, its kinda hard to say. i think closer to the stock location might mellow it out some but make it deeper at the same time. less pipe after the muffler to tone it down, so it might be more bassy and change the tone abit. either way it will sound good.

i cant wait to get the rest of my exhaust done but it wont be for alittle while. also, i need to get sound clips but the camera is broke and we arent gettin one anytime soon. it sucks. hopefully the dyno day vid will get done so u could hear my exhaust under load at WOT. its mean!!

Demon355

iTrader: (1)

I too will be at a Dyno day (Saturday) and will hopefully have a vid for you guys to hear my current setup (80 series).

I'll just wait till next year to do the new exhaust mods along with the rest I have planned...

83 Crossfire TA

iTrader: (2)

The closer to the engine, the more sound deadening the same muffler will do

Orr89RocZ

iTrader: (20)

well then, in the stock location it probly will be louder. i only have about 2 ft of pipe after the muffler currently. i got a friend that has a shop that will be doin the rest when the time comes. but the car is loud enough as it is. lol i'm sure once the rest of the system is fabbed up, it will be abit tamer but still have a mean sound

i guess you could try the 20inch body and see how that is. else step up to a 24-26inch version. or put a bullet somewhere behind it

Demon355

iTrader: (1)

I'll end up just putting the bullet in the stock location. It's easier and cheaper. The sound however should be very nice

Orr89RocZ

iTrader: (20)

it will be quite loud! kinda raspy but aggressive. thats why i didnt go with it cuz it would be tooo loud

Demon355

iTrader: (1)

I think that's the part that will make me change my mind about going with this simple setup, the raspyness. My buddies car had that and I HATE that

We'll see though...I like loud

I think I asked you this before, but what converter do you recomend for me? I NEED one as I got my car back few weeks ago after the 355 transplant and I can feel it wanting to move faster off the line but it can't.

Orr89RocZ

iTrader: (20)

i got a 2800 on my L98 and love it. its perfect. your car might like a 3000 stall for that cam and setup. your torque peak probly around 3200-3400rpms or so, so even a 3200 would work.

superbee

Id go with a presicion converter. we never have problems with them at work, i just ordered one for me, its a 2500 stall and its got an antibalooning plate. It ran me 424.60. Well worth the cost. Tci makes some good ones too tho.



And as far as exhaust. More tubing after the muffler, the more hollow, and cackle down there's going to be, lest tubing, its going to be more dead sounding but a little bassier. I prefer the sound of tailpipes.

Orr89RocZ

iTrader: (20)

NEW clip added
http://media.putfile.com/L98-Powerstick-exhaust-flyby

got the camera to work somehow! just smacked it a few times?? and it works. haha. hope you enjoy it. i dont think the clip really does it justice, as the exhaust right now angles out towards the drivers side, and it was filmed on the other side. but still i think it sounds good. i think its louder in person tho. on video it actually sounds very similar to my old 80 series flowmaster but in reality its not close. lol

i'll have to try it again to see if i can get better clips

superbee

Nice!

superbee

hey did you ever get tailpipes on that thing? or any more clips if you did?

Orr89RocZ

iTrader: (20)

wow old setup and old post! a heck of a lot changed since then

but here is a pic of it completed last year.


video of it
http://media.putfile.com/Chambered-Tube-exhaust-clips

on the dyno
http://www.youtube.com/watch?v=Xv-DllPZoWo

superbee

nice, how did you like it with tailpipes? I really want the same sound as an lt1 with gmmg, but you know how exhaust clips on the net are, sound nothing like the real thing. U got any info in that aspect?

Also, i see with your new setup u are runing somthing else, was that due to not likeing the sound at all or just because u wanted a single 4" system?

Thanks

Orr89RocZ

iTrader: (20)

i built a nasty little 383 so i changed the whole exhaust to flow enough for the big motor. Still have same exit tips. but its 4inch from y pipe back over the axle now. using dynomax ultraflo. I love it

My car was sorta GMMG like but not 100%. for you to do that, you will need to run 2 short body chambereed tubes where stock muffler is. It will sound close enough

superbee

ok, well mine will be a power stick then y our to 90 degree bends with a foot or two of pipe, basically diminsionally the same tubing as the gmmg kit.


Basically i dont want it to sound like a gen 1 motor with glasspacks. I hate that sound. But loved the raw gmmg sound....

Thanks.