mickman

The exhaust currently on my car is a 2.5 inch cat back dynomax into a single 2.5 in/out bullet with one 2.5 inch tail. This set up performs much better than the restictive 80 series flowmaster set up I had with two 2.5 inch tails. Since the LT1 swap I figure its time for a 3 inch cat back dynomax. I'm going to buy the 2 piece 3 inch dynomax "I" pipe, but they don't sell 3 inch tails. Nobody in town here does mandrel bending and most only carry up to 3 inch pipe. So I'm thinking of bypassing the muffler or bullet altogether and run a straight 3 inch pipe from the "I" pipe across the back into a dynomax turndown exiting behing the driver side rear wheel. I figure, straight through flow for maximum power and alot of noise. I think it could be a good thing. Any comments or suggestions? please and thank you!

mickman

Anybody?

RB83L69

"Alot of noise" is good somehow? All that does, is aggravate everybody around you. Nobody else likes somebody else's juvenile monkey-spank noise.

I'd suggest just running the cat-back like it comes. The 3" I-pipe is where the power comes from, power doesn't come from the noise. All that comes from that, is trouble, dislike, and speeding tickets.

calebzman

iTrader: (3)

That setup would provide good flow, but I don't think it would look that nice. I'm more of a fan of duals on these cars, but if you like you'll like the look of it, go for it. There's nothing wrong with a little exhaust noise either.

mickman

I'm affraid it might sound like a car thats muffler fell off. I'll probably put a 3 inch bullet in there. I'm in love with them, they are the best! Straight through and free flowing, I just thought maybe take it to the next step and have no muffler at all. My mechanic has a 500 plus hp vette with headers straight into 4 inch pipes on each side and no mufflers, I figure my setup would be pretty tame compared to that.

SchwarzCamaroRS

with no muffler SBCs are quite loud... not exaclty sounding like a pos car with the muffler off, but still, its a LOT of noise... i run 3" to a flowmaster 80 w/ a hi flow cat and stock manifolds and i love it... im with calebzman on this one though, True Duals all the way... get yourself some 2.5-3" true duals with two flowmaster 40's and you would get the flow, the rumble and the respect of your neighbors

Red Devil

Dynomax y-pipe and use the flowmaster, it has a step built in to it to bring it down to 2.5", it transitions to 3" before entry to the muffler, just lop off the 2.5" pc., that's why they made them like that.

mickman

I just checked out SLP's site and they now offer the loudmouth resonater to be purchased individually! I'm going to put that in the chain and exit into one 3 inch tail. It's going to be NUTS and I love it! hahahaha!

dimented24x7

iTrader: (2)

Wonder how it would sound paired with a muffler. Would be nice to have a quiet, mellow sounding exaust that actually flows well.

Gumby

link???

Gumby

I looked all over the SLP site and couldn't find just the resonator for sale????

mickman

GO to Slp's website and enter 31066 in the search area. It will come up. What's with all these guys talking about quiet cars and being peacable citizens? A heavy sounding car is a beautiful thing. I guess I'm just to aggressive in all aspects of life. Don't fear your darkside gentlemen, embrace it!

1meanGTA

hell, i've got a 3 inch flowmaster 80 series that i blew open with a backfire trying to start my car after my dist. gear stripped out on me a few weeks back, and it sounds VICIOUS. everywhere i go people stare, not that "man that things obnoxious" look that fart can ***** boys get, but that "holy crap thats mean" look. got a hooker aerochamber sitting in my garage, just waiting until this weekend for my neighbor to weld it up for me, but for now im enjoying the sound, even if it looks ghetto. i even set off a car alarm idling through an outdoor parking lot the other day. as for the single pipes, i realize the flow is better and for the most part the sound is better, but cmon how can you not love the dual 3 inch chrome tip look on these cars.

mickman

I love the dual chrome tip look on these cars but I'm more after functionality. Every Import driving loser has dual 10 inch exhaust on their cars and they go nowhere, Big deal. The best flowing "single" exhaust on f bodies are straight through one tail.

1meanGTA

really though how much more power does it make? i realize its relative to your engine, and intake, but in the average 300hp mildly built street motor? you're looking at what 5 hp going to single tip? i wouldnt think it would even be noticeable in sotp.

1meanGTA

heres my ride

Red Devil

If that's a GTA then it must have been in some hella accidents and then repaired really incorrectly...or it's probably not a GTA.

1meanGTA

i've checked the vin number, its a gta, the spoiler was badly faded and the last owner replaced it with a firebird spoiler, i actually like the way it looks better anyway. the trans am fenders are there because there was a front end crash in the early 90s and back then i guess they were easier to find and cheaper than gta fenders. i dont know why the gta badge isnt on the drivers side, there is a trick flow sticker there instead, but the badges are on the pass side, the front, and it has a gta steering wheel and map holder.

Red Devil

1meanGTA

alright i guess i was mistaken, its been a while but i thought when i ran it through carfax it said gta. but cmon, what kind of moron is going to go to the trouble to put gta badges, steering wheel and map holder on a ta to make it worth what, another 100 bucks? any way to tell for sure that its a gta?

RB83L69

Sounds to me like it's a car.

One of those "so what it's a {fill in the blank}". Nobody gives a rip. It's an accumulation of parts, a hybrid, not the pure thing.

So typical of Firebird owners to get all wrapped up in "the VIN" and the "History", like it's Scripture or something.

1meanGTA

whatever it is, its fast, loud, handles good, gets attention and is my baby. you dont like it, **** off.

pvt num 11

I guess I'm one of those Firebird nuts, too... However, research is always a good thing, especially when it comes to used cars. I've been burned once before.

Taking account that the car was supposedly repaired from previous damage, I question why the old owner didn't use a regular firebird fender and stick the appropriate GFX on it. It's pretty obvious that it was painted again (that or he got really lucky on fiding the right color fender and spoiler, plus just the right amount of fade) so mismatching body colors would've been fixed, plus he could've replaced the badging while he was doing that. Dunno, he isn't you, and it seems that you didn't do your homework very well. As far as authentication goes, I know that my GTA has the wrong rims. The owners fessed up to that when I was negotiating the price, so I managed to talk him down two hundred dollars for that point alone. GTA rims aren't cheap, at least, not here. (That or I don't know who to ask!)

Basically, they're pointing out that your car has fender heat extractors (or whatever they're called). GTA's did not come with those ever. The Trans Am, however, did. There's a lot of clues that give it away if it's a real GTA or not (like it really matters) but there's an RPO code which is the one dead giveaway whether or not it is or it isn't. Y84. If that code is not on the SPI sticker, guess what - you got duped into buying a regular Trans Am, and paid GTA pricing for it. If I was looking for a GTA and came across that car, I would've looked elsewhere, personally.

My spoiler is all nasty and cracked, but I won't replace it with a regular metal one, that would be downgrading the car, almost. The aerowing, although made form the nastiest crack-prone material I've ever seen, is actually functional (if you can get going fast enough to need it, anyway) and I'd rather go without a spoiler for a short time then stick a different one on there. Again, just my opinion, yours will probably vary. I'm not trying to rain on your parade, honest, but just trying to give you some (hopefully) good information.

Gumby

He right though. A nice straight single is better then the fake duals everyone sells and buys for 3rd gens.

Having dual tips for looks is just that. For looks.
Unless you have true duals from the block back.

After fixing several leaks in my system. I found the fake dual system to restrictive. The car didn't rev as fast in the high band.

ignore the concrete jungle paint.

1meanGTA

i'm not really concerned with whether its a trans am or a gta as far as what i paid for it goes, i got an awesome deal on my car. and i'm not one of these **** bastards that would throw a fit and sell my car just because it isnt a gta. i dont have the option sheet, i can get it from a gm dealership with my vin though right?

pvt num 11

Another SPI sticker? I wouldn't know, you'd have to ask the dealership for htat. As far as I know, you can't, but I'm not 100% on that. If you want to spend 35 bucks, you can have Pontiac Historical Services give you a packet of information about your car, once you give them your VIN. That would include a list of the options the car came with when it was built.

Anyway, I apologize if I somehow hijacked the thread, now back to your regular scheduled program...