The results are simply incredibly impressive for this motor which is a beast when tuned. Great to see Renntech's own posted dyno's backed up independently, great work. Full review in xtyper's words with dynograph below:
So last week I sent my ECU out to Renntech to have it tuned. Everything went very smoothly, and I received it back two days later as planned, along with a couple of BMC Air Filters. Like a kid on Christmas morning, I opened the box and installed the goodies right away. Then I took the car for a spin.
Now, mind you, I've read all the reviews and power results on these M157 tunes, but never in my wildest dreams did I imagine it would have the effect it did. The car felt strong before, but now it feels AMAZING! Stock-like driveability at partial throttle, but at WOT, all hell breaks loose. Mashing the throttle on the freeway at speed even spins the tires loose. This thing is a monster!
To make sure the results I felt on the street could be verified on the dyno, I took the car down to MD Automotive in Westminster to check the power output. Keep in mind this is the same shop used in all the Edmunds.com dyno reviews. It's a typical, run-of-the-mill Dynojet 248, and Mark the owner is a really nice guy.
Car: 2012 E63 AMG Non-PP
Modifications: BMC Air Filters, Renntech Tune
Fuel: 95 octane mix via blend of Chevron 91 and VP Racing 100
Ambient Conditions: 75 deg F, 28.79 Baro, 59% Humidity
Dyno Type: Dynojet 248
Peak Results (4th gear): 607whp & 710wtq SAE Corrected!!!
Attached below is a picture of the dyno graph printout. Besides amazing peak power, note how smooth the curves are, and how safe the AFR looks.
Needless the say, I couldn't be happier with these results. Much thanks to George and team at Renntech for the great customer service and a top-notch product.
Next up...the Airstrip Attack event hosted by Shift-S3ctor Nov 10-11. I think this car is really going to surprise some people there. Can't wait!