redtail2426

I need a high flow cat for my 305 tpi motor.I already have a flowmaster american thunder on it and the stock cat is gutted.want to know what company makes a nice high flow cat. thanks

JETHROIROC

I dunno, but you might get more advice in the EXHAUST board .

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley module, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Streetdampr, Ruger P95DC, hot wife, new oil filter, !cats, !TBC, !AIR.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

ONEFINE8T9

i went through summit for mine and its a catco, it has stainless steel heat sheild and fits like a charm. Its a nice quality peice, i got it for like 90$, i couldnt tell you the difference over stock considering that i got that and the cat back installed at once

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1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
http://members.aol.com/j007golden/Mikey89.html
http://www.geocities.com/firebird/myfirebird.html
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1985 trans am
factory bright yellow
4 wheel disks
16 inch wheels
305 TPI
power antenna and mirrors
t tops