zzp down pipe?
#1
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zzp down pipe?
i have the following done to my 99 sse (k&n cold air intake, , msd coil packs, msd 8.5mm superconductor wires , dimondfire plugs,180 thurmostat, muffler back exhaust, zzp hv3 , zzp pcm tune,zzp throttle body,ER rockers,Ls6 valve springs, zzp pl) would i gain alot from a downpipe or should i just replace my cat with a free flowing one ?
#5
DINOSAURUS BOOSTUS
Expert Gearhead
Our downpipes don't have as much of a restriction as say a W body. The biggest restriction is the front exhaust manifold. A Plog may be a better investment if you are looking to free up the exhaust.
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PalermoCorey90
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12-19-2007 06:30 AM