jdmkiller
04-22-2011, 06:23 PM
i plan on making big power, over 500whp. i want to know whats the biggest piping on a catback that you can buy. i dont want a stepped piping size. i want the same size piping from start to finish minus the tip.
zenki4u01
07-17-2011, 09:40 AM
When do you plan on making that? I mean, if your not going to make that for another year or two, the largest diameter catback you can buy will not be a good choice. If you buy it too large without justification in mods, it will be useless and you will lose the back pressure needed.
now to answer your question. I believe i have seen some 4in piping exhaust. Largest I have seen.
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