MBC Racing

iTrader: (3)

I brought my 00 M6 Z28 into Speed Inc this past Friday and Jim did an excellent job dialing it in. The a/f ratio was all screwed up from 3-6k and really bad between 3-4k (10.0!!). It didn't straighten out till above 6k. The car picked up 20 rwhp and 30rwtq in the midrange and drivability is much better. Peak numbers were 420 rwhp and 385 rwtq. The weather was hot and pooring rain....very humid. This bottom end only has about 5k miles on it and will redyno in the fall to see if it picks up any hp with more miles and better weather.

I highly recommend them if you need to get your car dialed in on the dyno and they have some of the best prices around!

Thanks Speed Inc.

Brad Oblak