Motosport

How much difference in power will a full 3" exhaust system give vs a 2,5" test pipe with cat delete.? Car is mostly stock with just a boost enhancer, A-tune and shimmed wastegate...

I do plan to upgrade to M-tune, dual port WG and perhaps turbo upgrade in the future..

Just wondering if its worth the extra money to change the entire exhaust system, or if I'll be fine with just a test pipe..

Thanks

Richgreenster

Lindsey racing has some dyno charts where they compare some different things. The 3" exhaust is worth the money if you want more HP.