Aftermarket Offerings
Transform your ride with Sanford’s top aftermarket experts. From turbo kits to custom tuning, we build the ultimate BMW & Porsche machines.
Big N54 Power with Doc Race!
Here at Precision Sport Industries, we thought we had seen it all for the N54 platform. This was until we were handed the brand-new Doc Race bottom mount turbo…
2011 1 Series M Coupe
The 1M coupe calls the E30 M3 its Papa, but there is always still room for improvement.
2012 Turbo S Edition 918 Spyder
The 2012 Edition 918 Spyder Turbo S is already a rare car in terms of the Porsche world.
2011.75 E92 M3 Project Fire
M3s are special cars, a Fire Orange example is even more special.
We upgraded this M3 with Japanese flair and American attitude.
2008 M5 G-Power SKII
Our customer’s childhood dream was to own an M5, once his dream was made real, he really went big.
1988 E30 M3 Matte DTM
A deep dive into PSI’s 1988 E30 M3 Matte DTM build. Explore the restoration and performance upgrades at our 25,000 sq/ft Sanford facility.
2006 M5 G-Power SKII
Experience the power of the G-Power SKII supercharged M5. Expertly tuned and maintained at PSI’s premier 25,000 sq/ft Sanford facility.
Austin Yellow F80 M3 in for Upgrades
An Austin Yellow F80 M3 in for H&R springs and Macht Schnell spacers at our new Sanford facility. Explore the full build and gallery here.
All in the Genes BMW X5M
With his long history of modifying the best in Japanese and European automobiles, our customer knew the route of his M6 years in advance.