ZPOST - View Single Post - Headers + Evolve-R Header Tune Dyno = Power Loss :(

ajw45 · 04-13-2013, 03:03 PM

Red = Evolve Stage 2 Header Tune + SGT Headers + KKS Exhaust
Blue = Evolve Stage 1 Tune + RPI Exhaust
Green = RPI Exhaust

All runs were done on the same dyno, the tunes had 500-1000 miles to set. I felt the power loss with the Stage 2 tune immediately but thought it was the new quieter exhaust messing with me. I'm assuming it's a tune issue but any thoughts or ideas if it could be something else? There's an auto-x tomorrow and I'm not sure if I should revert to the Stage 1 Evolve tune or OEM tune, mostly just because I'm worried about running the car all day when it is tuned so lean.

04-13-2013, 03:03 PM	#1
ajw45 Private First Class 32 Rep 149 Posts Drives: Z4M Coupe Join Date: Feb 2011 Location: Boston iTrader: (0)	Headers + Evolve-R Header Tune Dyno = Power Loss :( Red = Evolve Stage 2 Header Tune + SGT Headers + KKS Exhaust Blue = Evolve Stage 1 Tune + RPI Exhaust Green = RPI Exhaust All runs were done on the same dyno, the tunes had 500-1000 miles to set. I felt the power loss with the Stage 2 tune immediately but thought it was the new quieter exhaust messing with me. I'm assuming it's a tune issue but any thoughts or ideas if it could be something else? There's an auto-x tomorrow and I'm not sure if I should revert to the Stage 1 Evolve tune or OEM tune, mostly just because I'm worried about running the car all day when it is tuned so lean. Attached Images
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