DO not whant to go too crazy on the car so no swap of turbos or engine mod

What I kind of figured out to date:

ECU Tune - bigest and proven mod - not sure who is currently king of the hill - best tune?

CAI - Evo - direct power gains are not documented, cheap enough - do they really do anything?

IPD plenum - same as Evo CAI - any proofs on the dyno or on the street - one way or another

Cat Bypass Tubes - proven mod.

Anything else - larger Intercoolers, retrofit of th IC from Turbo S to Turbo, etc.

Suspention - have a PDCC - do not want to loose heght adjustment - is anything availiable
Many Thanks

 

Upsolute ECU is around $700 for 80 HP

 

I would love to see some before and after dyno numbers for these mods

 

I've done intakes and bypass pipes. Still holding off on the re-flash because I've got money going to other priorities.

Logically both are going to give some power increase. But they are both worth the cost for the sound alone. Hearing the turbos spool through the intakes is awesome.

I can't really see how the plenum is going to add power on a Cayenne since the stock one already is a Y.

 

What mods are allowed without voiding the warranty?

 

Everything we are talking about here- IPD, EVO CAI, Cat Bypass I could take off in the matter of 2 hours if I need to get warranty service