Welcome to MAC Autosport!
MAC has a new location. And it's nice...really nice. And we want to show it off. So come by and take a look at the new place. We like it, and we know your car will love it! For directions to the new location click here. We look forward to seeing you and your car!
 Welcome to MAC Autosport, Colorado’s Premier Dyno Tuning and Full Service Speed Shop. Thank you for visiting our revised website. MAC specializes in dyno tuning most makes, and offers specific support for GM performance vehicles, Mitsubishi EVOs, Subarus, Nissans, and Infinitis.
Our All-Wheel Drive Dynojet is the busiest in the region, and our shop sells and installs performance modifications for engines, turbo systems, supercharger systems, suspension upgrades, driveline upgrades, and brake upgrades. Check out this site to find out what we’ve acomplished, and what we do best.
We always strive to provide the best merchandise available, and installations performed to the highest possible standards. Our goal is to maximize our customer’s driving pleasure.
So, what does MAC do? First and foremost, we are a dyno tuning facility. Entering our sixth year as Colorado's original AWD dyno tuning shop, we have logged over 30,000 runs on our Dynojet, on over 2400 different vehicles, comprising more than 25 different car and truck makes, domestic, and foreign. 
While we will dyno and tune any and all vehicles, MAC does have some specialty areas of expertise.
Our specialty vehicle makes are outlined below.
Subaru WRX/STi, Forester XT, Legacy GT
MAC dynos and modifies more Subarus than any other car make. We have had more than 450 different Subarus in our facility, for tuning, power upgrades, suspension upgrades, drivetrain upgrades, and brake upgrades. MAC stocks and installs UTEC from TurboXS for tuning Subarus, and also sells, installs and tunes Cobb AP, OpenECU, Hydra, and Autronic for these cars. We are Master Stocking Dealers for Perrin/Alta. 
Whether your objective is a modest power increase, better handling or stopping power, or if you want monster horsepower, MAC has the practical solutions for your Subaru.
General Motors  MAC is pleased to announce comprehensive support for GM vehicles! Whether it's simple HP Tuner tuning, complete LSX engine upgrades, brakes, suspension, or driveline. MAC is here to serve your GM needs! Our current projects range from a mild E85 tune to a wild 550 wheel horsepower all motor tune. MAC is also an authorized MagnaCharger dealer. We can also install single- or twin-turbo systems.
Mitsubishi EVO 8/9/10  As of mid-year 2008, MAC has had more than 165 different EVOs in the shop for Dyno-tuning, or for installations. Our projects have included numerous HKS cam installs, full engine builds, stroker engine builds, suspension upgrades, brake upgrades, clutch upgrades, and turbo upgrades. We have seen any and all combinations of modifications on these cars, and we know what works, and what doesn't work. MAC proudly carries the performance upgrades that have passed the test on our Dynojet, from HKS, RPS, AMS (Automotosports), ATP Turbo, MAP-ECU, RC Engineering, Hawk Brake, and more. Don't make a costly mistake on Your EVO, stop by MAC and we can discuss your power, handling, and stopping goals.
Nissan/Infiniti
MAC always has NISSANs in the shop, either for performance upgrades, or for tuning. We are acknowledged as the destination shop for Drift Competition cars in the the Rocky Mountain region. Our SR20DET engined cars are not just daily drivers (although quite a few are), but also compete in autocross events, drift competitions, track days, drag racing, and road race competitions. MAC is drift HQ for the region, and our Road Race/Drift car, driven by Adam McMahan, competes all over the west. 
MAC sells, installs, and dyno-tunes turbocharged or supercharged modifications for G35/350Z models. MAC is the authorized dealer for Stillen in Colorado, and fully supports the G35/350Z. We also tune with TurboXS UTEC for the G35/350Z, with very impressive results.
 
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