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Overview |  Sponsored Cars | 
Diffsonline is involved in motorsports at all levels from HPDE's ( High Performance Drivers Events ) to entry level amateur racing to full professional race teams. For our products to be the best, we must test our products in the most rigorous fashions. This can only be accomplished safely on a race track. Our differentials are proven week after week under some of the harshest conditions cars will ever see. Take a look below to see how we are involved.
Diffsonline also sponsors many racers at all levels. Click here to take a look at all of our sponsored cars.
 High Performance Driving Events
We participate regularly in High Speed Driving Events, as well as supply countless cars with differentials that will hold up to the high demands of the track.
John Mariani's E36 M3 IP Club Racer
 Club Racing
Diffsonline is involved heavily in supplying many top club racers around the country with trick differentials to help them stay ahead of the competition in many sanctioning bodies including BMWCCA, SCCA, and NASA.
Jon Holder's Wide Body E36 M3 CMod Club Racer
 Professional Racing
Diffsonline is also involved at the professional level of racing.   We supply differentials for teams where the ultimate in performance and reliability is a must.   Our differentials can be found under cars in most every major professional GT and Touring Car series in the US.
Bimmerworld E90 SCCA World Challenge
 Drifting
Diffsonline has also built some custom differentials to hold up to the unique demands of the latest automotive craze... drifting.
Dado's 95 E36 M3 Turbo


Diffsonline, LLC
1034 Main St
Winchester MA 01890
All prices subject to change without notice.
Copyright © 2005-2008 Diffsonline, LLC
Phone: 781.983.2944
Fax: 781.930.1346
E-mail: dan@diffsonline.com