Gruppe S / Dynamic Autosports / Hankook Tire GTR Drift Car

Posted by Gruppe S On November 5, 2009

Check out our new Project GTR Drift Car for Formula Drift. Stay up to Date with Developments on the Car here on the Gruppe S Blog

Check out the new End of the Year Gruppe-S Drifting Season Video

Posted by Gruppe-S On November 3, 2009

Robbie Nishida, Eric O'Sullivan, Ryuji Miki and the Hankook Tire Drift Team Video Showcasing our strong 2009 Season.

Check our our Holiday Deals @

Posted by Gruppe S On July 24, 2009

Check out for all the great deals on all your aftermarket performance part needs. Located in Lake Forest, California, Gruppe-S carries thousands of different products and has over a Million Dollars of products IN-STOCK.

Robbie Nishida Qualifies Number One at Formula Drift Las Vegas!

Posted by Gruppe S On July 10, 2009

Robbie Nishida, Driver of the Dynamic Autosport / Hankook Tire 305Z Qualifies in the number one spot at the Formula Drift: Round 4 Las Vegas Speedway Event

Hankook Tire F200 FULL RACE SLICKS On Special at Gruppe-S Now!

Posted by Gruppe S On July 25, 2009

PTop-notch performance slick tire with consistency and high mileage on dry or damp track. Designed for both Formula Car and Touring Car applications by Hankook now in stock at Gruppe-S with special deals on various sizes, call in for details! (949) 457-1234

Power to the Ground: OS Giken LSD

Posted by Gruppe S On Thursday, August 04, 2011

One of the absolutely best modifications anyone can do to any car is a differential. In terms of handling it is one of the most dramatic mods you can do that gives you that amazing driver feedback during track conditions. With the FWD application it helps to significantly reduce if not eliminate a great deal of understeer. For our Scion TC Time Attack car we had to go with one of the best in the business, OS Giken.

Contrary to Rear Wheel Drive applications or AWD where you can just remove the "Pumpkin"(Differential Housing) you need to actually remove the transmission and disassemble it to change out a diff. Its a little bit more daunting of a task, but it is absolutely well worth the effort.

While we were there, we took out the stock Clutch and changed it out with an ACT Head Duty Clutch. We needed that extra strong bite that ACT clutches gives especially since we went with forced induction.

Organization is key in this kind of work and our head Technician Sy, is a master of organization with his super JDM work ethic.

The network of transmission gears that enables our driver to hit those apex's.

Steven Tran @ Gruppe-S

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