Tom and Nick from Massachusetts have identical 2018 ATS-Vs with M6 transmissions.  Spark plugs and catted downpipes are their only mods.  We performed remote dyno tunes on both cars and they put down nearly identical power – within one percent of each other.  Looks like it will come down to driving skill when these two challenge each other on the street!

Arthur shipped his beautiful M6 coupe in from Arizona for some Christmas goodies.  We installed Caddy Issues turbochargers along with Mace Stage 1 camshafts, and fuel system mods are now in place for E85 plus methanol injection.

Net results were right around 700 whp and wtq as expected.  Keep in mind that we never advertise ‘uncorrected’ dyno numbers.  That would be the same as having a ruler with no marks.  Instead, we always use the industry standard SAE correction factor with smoothing = 5.

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.