Steve R

IT's an 88 Iroc. I bought it with some kind of Flowmaster muffler. Sounds amazing at idle, but sounds like a damn 305 or worse yet a v6 when I rev it. Then this kid I know has a 305 Camaro with a Flowmaster that sounds really deep all the time. What's the deal with that? How many different mufflers do they make?

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1980 Camaro, '88 Police 350 engine, Headers, full exhaust, completely redone, my baby!
1988 Iroc-Z L98, MSD 6a, Accel coil, K+N's, Airfoil, Coolant Bypass, Flowmaster, Gears, Late model Bose, I like the 80 better

gearrrhead

well I don't know what crap sounds like but they make alot of different mufflers. but if yours is a crossflow then that narrows it down quite a bit because then the only differece is pipe diameter. but if it is just a sigle in and out thier are alot of options. go to thier website.

www.flowmastermufflers.com

it has a description of all thier muffler lines.

theformula

Because it's a Flowmaster

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91 Formula
305 TPI 5speed
1LE/G92/WS6

Paxton SN92, Ford SVO 24#injectors, Crane AFPR,SLP airfoil, ported/polished plenum, March alt. pulley,Crane Gold 1.6rrs,MSD coil,MSD6AL (5400rpm limit),Holley 9mm wires,Ac delco R43ts plugs,stock chip,Bosch O2sensor,SLP 1 5/8" headers,SLP catback,shortened shifter,3:73s w/Auburn posi,180* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.

RGZWS6

Is your cat clogged? That could be hindering some air flow! I had a friend who had the same symtoms with his. Idle sounded great WOT sounded like a pick-up.

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89 Formula 305 TBI
160* stat, 200* fan switch, K&N, Headers, 3in Flowmaster (hollow cat) back, pullies, 1.6 full roller rockers, B&M trans cooler, home-made ram-air
3.73 Richmond gears and SLP Zexel Torsen Posi (waiting for install)

IROCZTWENTYGR8

iTrader: (1)

An 80 Series or 40 Series dual outlet with 3in. pipes and high flow converter, or the Flowmaster AT exhaust system, nothing sounds better on a modded or not street legal 350. How do I know, because I've heard them.

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Looking For:

87 IROC-Z28 350 TPI
The car I want.

84 TRANS AM 305 H.O.
Another car that would be OK to own while I still look for the IROC-Z!!

[This message has been edited by IROCZTWENTYGR8 (edited March 28, 2001).]

84CAMAROHIGHOUTPUT

my 85LG4 motor never sounded that great until i gutted the cat with the flowmaster 80 series and headers offered no difference in sound at all

EvilCartman

iTrader: (1)

hehehe was about to say the same.

CamaroX84

Do you have a cat on your car? I have heard that Flowmasters sound awesome when you do have a cat, but sound like crap when you have it removed/gutted.