Quote:
Originally Posted by josephbet01
So between the BMW Performance exhaust and the AA tune you've got about 21HP gained. That's assuming 20% drivetrain loss.
230hp -20% loss = 184hp to the wheels stock
184hp +21hp in mods = 205hp to the wheels
That sounds about right.
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If I can dig up my dyno sheets I'll post up. I had it dyno'd stock on a Superflow 880 AWD dyno. Wheel hp was something like 165 or 169.
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E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler.
Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile.