Alot of repeats here. Slow server tonight.

In the realm of 'that was a mustang v8', you need to remember that the L67'* here flow more than a V8 mustang. Our effective displacement (depending on pulley size) is greater than 350cu/in.

Again, it boils down to what'* more important to you. Performance or sound?

as is often forgotten by the whiners ...the inlet on the Camaro/Firebird muffler is a 2.5, meaning youll need a reducer of some sort to get it to work with your 2.25

ive also had good luck with http://www.fle-online.com for exhaust stuff

you might just look into a universal Magnaflow if the dual outlets arent your thing, i kept the stealth look on mine(no visible tailpipe of anykind) and i liked it better than having the tips hanging down below the bumper.

All depends on what you want. Heard the magnaflow on willwrens 93, sounds good. much more mellow (stock sounding) at idle, but really sounds AWSOME once you are moving! Even at freeway speeds. I belive they give better flow which makes more horeses in our cars.

Flowmaster, which I have, noticably more rumble esp. at idle. I think it sounds like a V8, esp when I compare it to my friends 350 el comino w/ a flowmaster or our suburban 350 with an IMCO muffler. I prefer the more rumble and distinct pitch of the flowmaster, and it never gets old IMO. I'd admit that power gains are greater in both mufflers, but not quite as much witht he flowmaster. The 2-3 hp that I don't get isn't anything in my books when I hear the beautiful rumble when I start my car up.

Both are great mufflers and I'm not about to bad mouth eather. Just depends on what you want. Eather way you'd get a great muffler.

John is teasing me again. He'* commented on the sound of my car when I open it up on the freeway next to him. I've never heard it myself. One of these days (Dec 26th or so) we'll have to trade cars.

You'll never see Zilla again...lol

a 2-3 hp change isnt very noticable on a dyno, too many things can/will change betweek runs.. air temp, engine temp, humidity, fuel quality and dyno calibration. In my opinion anything less than a 5 hp difference can not be measured on a dyno.

And to feel it in normal driving conditions you need much more than 2-3 to be noticable.

Right. This isn't a pointed comment at you, but I guess I still have unanswered questions.

SO, according to tests...you CAN still see a 3-4 HP gain out of a magnaflow even with nothing done up front? Logic of mine (which is often flawed) says it impossible to gain horsepower on a part that far down stream unless something is done up front to get more air in. So what if you can get it out, but if it isn't comming in I don't see how you can see a gain. Like I said before, it seems like the cat and intake (stock) would be to restrictive to see any gains out of just a muffler.

Logan...I think you need to see some other cars with exhaust done.

personally...it'* too loud after being changed for me to be happy as a daily cruiser.

all right, so does it have to be 2.25" or if i replace the whole system, can it be 2.5"?
Bugsi - what exactly did you have to buy for the intake/what did you do?

Here'* what I'm thinking:

Muffler - part # CARS14266 -
5x8 Stainless 18" Body, 2.5" *, 2.25" D, Camaro, Magnaflow Universal Muffler

Cat converter - part # CARK54305 -
Round 2.25" Inlet/Outlet, Magnaflow Catalytic Converter

Tips - part # CARR35124
Magnaflow Tip DW 4.00" x 4.50", 2.25" ID
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Will those work? Would it be a problem that the muffler has 2.5" *, or could I just replace those pipes with 2.5" instead? That would also mean I would need 2.5" tips too, right? If so, that'* great! More options...


Also, my whole exhaust system needs replaced, pipes and everything...So, should I just replace all the piping with stock pipes, or make a change? What would be the best way to go about buying the pipes? Through the exhaust shop I take it to, or online? Also, what exactly is a resonator in relation to the c.c.? Because at hottexhaust.com they have Magnaflow part # 14415 as being a resonator, but when I search that part number on magnaflow, it comes up as a c.c. So, which is it and what difference does it make?

My bad for so many questions....I'mma newb.