did you notice a difference in power or only sound and gas mileage?

anyone have before and after times at the track?

did you have problems with the car running lean (tbi)?

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late model 91 rs
fully loaded t-tops, red leather
paint- gm red and yellow blend (light red)
custom painted 16" Camaro rims
305 tbi 14"x3" O.E, computer chip, accel super stock plug wires
Edelbrock 3" cat-back
MTX sub and amp, Bose all around
vic_v8@yahoo.com
street kills: a lot of "family" cars, pickups, New v-6 stang, totally killed '86 SC Camaro, 91 z 28 with 305

 

The only problems besides emmisions that you will encounter are "nothing" you would have a rich condition if you have a 2 o2 sensors 1 infont and 1 behind the cat, if not hack away.
There is a power increase from removal "you will feel it"
SSC

 

I've got a 85 iroc tpi,typical mods,airfoil,bosch 4's,screens removed,etc. Also gutted cat with STOCK G.M. exhaust. Car sounds deeper and throaty. Really surprised me, the positive change in sound. Aklso pulls slightly harder on top end, freeway cruising, etc. Now I wonder what Dyno-max Ultra-flow would do performance?