Another Brown Belt Performance Package is out the door with more than 750 whp and 730 wtq.  Corey from Georgia aims to have the baddest M6 ATS-V out there, so he shipped his car in for the works.  We installed Caddy Issues turbochargers along with Mace Stage 1 camshafts, and fuel system mods are in place for E85 plus methanol injection.  He’s also running a SPEC clutch and Driveshaft Shop carbon fiber driveshaft.

Our good friend Robbie from Florida shipped his ATS-V to Ohio for a complete Brown Belt Performance Package. He told us, ‘Don’t ship the car back until it makes more power than any other ATS-V’. Mission accomplished!

This rare car is one of only 31 Crystal White Frost ATS-Vs ever manufactured. We installed our Purple Belt Performance Package and turned up the wick to 583 whp and 613 wtq on E47 fuel with fully automatic flex fuel tune. Then we added a little more boost and the car put down 625 whp and 663 wtq on E69.

Chris from North Carolina dropped his ATS-V off at our place for installation of our Purple Belt Performance Package, plus Turbobay turbochargers and our Stage 2 valve springs, retainers and camshafts.  Peak numbers were 638 whp and 626 wtq using SAE correction factor.  Most people would be satisfied with these numbers, but not Chris.  He asked what we could do to get his numbers into the stratosphere above 700.  We recommended Caddy Issues turbochargers and he gave us the green light.  So we swapped turbos and strapped the car back to the dyno.  The car never even left our shop.  With the same tank of E60 fuel, the same WGDC and on the same dyno, Chris’ ATS-V picked up 100 whp in the meat of the powerband at 5,500 rpm!

There is a big difference in the level of engineering and component quality here at Tapout.  This is why we hold more dyno horsepower, quarter-mile, eighth-mile and 60 to 130 mph records than all our competitors combined.  And this is why you want to be careful not to fall for the schtick of what some others say when they provide no data to back up their claims.

Our good friend John from Alabama runs the Purple Belt Performance Package, along with Mace Stage 1 valve springs, retainers and camshafts.  We performed a custom dyno tune and produced peaks of 642 whp and 637 wtq.  This ATS-V M6 coupe is going to be an absolute blast to drive with 600 plus whp on tap all the way to 7,100 rpm!