would i notice a big difference in sound by just changing the stock muffler to a flow master 80 series car is mostly stock l-98 only mods are ported runners and plenum UD pulleys with a CAI exhaust is stock with N-10 option

 

Yep, a flowmaster will be much louder.

 

its what Im running and its way louder and throatier, definitely a noticeable difference over stock

 

http://youtu.be/QQEY23P1sk

Hell Yeah, Especially in the L98 the Flowmaster 80's Series 3" Catback exhaust is perfect, Especially when your used to the stock muffler, it just brings it to LIFE !!

 

great thanks guys

 

http://m.youtube.com/#/watch?v=-QQEY23P1sk&desktop_uri=%2Fwatch%3Fv%3D-QQEY23P1sk

 

Forget the Flowmaster 80 and go with the 40 series. Much deeper and louder sound. Here is a video:

 

It'll go from sounding like a car exhaust, to sounding like you're dragging a 55-gallon drum on a 3' chain behind your car 100% of the time.

It'll probably get REAL old REAL fast. I know it sure did when I had one. I. HATED. it. Worst exhaust mistake I ever made on this car.

 

I love the way my 80 series sounds at idle. Little more drone then Id like at cruise, but not bad. Not a big fan of how it sounds when you let off at higher rpms though.

Either way, it is up to the owner to decide what he/she thinks sounds the best.

 

take out the cat and its even louder.. sounds like my boat

 

Just throwing in my .02 cents but a great sounding AND performing choice is the Hooker Aerochamber! Just as good of sound but will make more power. It's been documented countless times on dyno's. Check it out if you haven't bought yet!

 

Thanks guys picked up a 80 series for 70 dollars shipped brand new cant wait to it installed

 

It will sound even better if its the whole cat back system with 3" pipes as opposed to just the muffler but if your going for a factory look, just the muffler will suffice.

 

trying to keep it stock looking with just the sound also had a hard time trying to find a catback for the n-10 option double cats

 

does any one no were i might be able to pick up a 3" i-pipe for the dual cats i have seen the dynomax version is only 2.5 inches but is mandrel bend does anyone no if that would be better than stock thanks.

 

Check with the local muffler shops, you can get pretty much any setup you want, make new piping for a custom fit, if its not in stock piping. Dual cats or single cat.





Those two are the same setup just pictured differently ^

 

cool thanks having it installed on sat I will see what they have and say thanks

 

You might want to stay there and take photos of the install process.Its always nice to document modifications like this and keep a few files for your car on the computer.Ive been doing it for over 6 years now and have some really nice photos.

 

okay hi to all i have an 89 camaro 305 tbi and i was wondering if i could use the flowmaster 10 series muffller 1 inlet with dual outlets even though its not a crossflow muffler, i intend on hooking the cat pipe to one of the dual outlets and have a pipe running out of the other outlet and another pipe running out of the inlet like the crossflow setups. will this work Please give FEEDBACK!!

 

I'm thinking you'll love that 80 series, its what i have on mine. but if it doesn't sound quite as nice as you wanted, just change out your stock pipes...put a new ypipe on mine comported to stock, MASSIVE difference, got that flowmaster sound i was looking for.

 

So what happend ? I was hoping to get a fallow up on your install.

 

I had it installed and love it much deeper than stock but not over the top I will try and get a sound clip up today best mod so far for the money

 

do you still have all the stock crinkle pipes on there? i had the same set up on my '89, then i got a new y pipe and it just MAKES the sound...i would definitely recommend that, plust those crinkle bends don't allow very good air flow

 

for now was looking at the 2.5 inch from dynomax it was all mandrel bend
http://shop.advanceautoparts.com/wcs...4_pri_larg.jpg

 

yup, i used dynomax for my y pipe, ill be swapping out my intermediate pipe like you are with the same thing. if i were you, id get the y pipe replaced first..that way you get better air flow right off the manifolds. then move to the intermediate pipe

 

cool thanks you think that is better than the stock stuff wasn't sure

 

I have run the flowmaster 80 and as mentioned its too loud for me.Maybe thats what you like but i prefer a good mellow sound when im just driving around.I went with the hooker max flow.3' in and out straight through design which is better on performance.It is much more mellow at speed without the droan and i can carry on a conversation and here the radio without turning it up.It is still a tough sonding tone,but when you get on it you can tell its not stock.I swear the butt dyno felt a difference as well.

 

So how do you like it? I went with 1.5 inch headers straight to a fully custom 3inch pipe and purchased a cat back 3inch flowmaster 80 series pipe and muffler with dual 2.5 inch outlets. It really hollers when I put my foot in it and I love the way it sounds at speed .worth every penny. ($79.95 or the headers and $300 for the rest. installed)

 

so far with just the muffler stock everything else i love it, i really don't thinks its that loud, especially not as loud as I thought it would have been

 

i agree, inside the car it can drone out a little bit, but thats nothing a crap ton of dynamat won't fix. plus my car has so many rattles and noises (especially on gravel roads) that I've grown accustomed to it being loud inside.