Quote:
Originally Posted by ozz
would like some input about the upgrade. Performance gained noticed any change in gas mileage .Thinking about having it done but wondering if its worth the price for the performance you gain. 2009 GXP auto wicked ruby red
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Mine might be an abnormality, GM is currently looking into it. But here is stock vs GMPP.
It seems that hardly any auto owners use a real dyno, they use the cheap butt dyno and claim outstanding performance gains. I think any time we spend more than $500 the butt dyno will always tell the head that the car is faster.
9 July another auto owner is going to dyno their car so I am waiting to see his results to see if this is normal or if there is a issue that really needs to be addressed.
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1999 Formula: 402-F1C-ETP heads-T56 6 spd-etc... 891 rwhp 9.85@146
2004 Ram 3500 dually
2007 Corvette A6-FAST 92-Kook headers-11.74@120
2009 Touareg TDI V6, Purchased 03 June 2009.
2009 Solstice Coupe Deep #0199, A5, Purchased 28 May 2009- GMPP Turbo Upgrade 225rwhp/216Tq, Magnaflow catback, Splash Guards, Soft Top, H&R Springs, Backbone, Probeam, ZOK Sway bars, EBC Yellowstuff brake pads, OZ Ultraleggera 18x9", Nitto INVO 275/40/18
60' 1.955 1/8 8.643@79.81 13.558@100.5 MPH
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