Quote:
Originally Posted by AmuroRay
The CTS IC is ‘too small’ for Stage 2. It’s a 5/5.5” core. If you’re looking for 400whp, plan on doing a HPFP and the BM3 Stage 2+ Which is over 400whp+
My recommendation:
MST/Pure Turbo inlet (this will allow your turbo to work more efficiently)
Turbosmart diverter valve (the stock version is pretty weak, and BMW saw fit to use an higher capacity version on the M2)
Dorch Stage 1 or 2 - depending on if you’re upgrading the turbo, stage 2 would provide more headroom.
Downpipe - AA/Fabspeed if you need to pass emissions, otherwise any catted is as good as another
VRSF Race/Wagner Evo 3/VRSF competition- from best to least. the biggest ICs out there would keep your AITs and more consistent power. The VRSF stuff is cheap and it works
XHP software - I drive a manual so I don’t really care - but guys swear by it.
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This is a typical build list for a EWG who wants to do fueling upgrades... but OP is PWG and doesn't want to do fueling upgrades lol. Hence why i recommended a different approach.