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I have a 96 Z28 and I was thinking about gutting the converter on the drivers side. the one that bolts directly to the exhaust manifold. Would I gain or lose horsepower from doing this? Thanks
 

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All 96 and newer cars are OBDII. In other words your computer monitors catalyst efficiency. If you gut the converter your computer will see no difference in pre and post cat readings which will make it think it is running inefficiently, and will set trouble codes. If you want to remove the cats that badly get the computer and engine wiring harness from a 94-95 LT1.
Oh, either way you go it won't pass federal emmisions requirements (its not legal for street use).

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95 6 speed Trans Am
69 X22 D80 w/95 LT1 Terrorizing the streets of N.E. Ohio....in a year or two.........mabey
http://www.geocities.com/camaroracerlt1/index.html?1024837982080
 

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you can get a kit that fools the computer into thinking the cats are there and operational, but it is for off road use only(nudge nudge, wink wink). it's just a resistor that plugs into the wiring for the second set of oxygen sensors, and gives the "all clear" to the computer to let the car run right.

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1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik
 
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