APTuning, LLC

We are pleased to announce that we are now an authorized dealer for Stern's line of high performance engine and transmission mounts as well as suspension components. Their product line mainly focuses on stiffening the drive train for performance and durability on late model Audi B- chassis cars.

Stern engineers their products from the ground up using only the best available materials and resources. Utilizing the latest CAD/CAM and FEA technologies, we develop only the highest quality products available for your vehicles. Designed specifically for the performance enthusiasts Stern products are meticulously tested for perfect fitment and the ability to withstand a lifetime of abuse.

Almost all the products are currently available for purchase from our website. If you are looking for something but don't see it, do not hesitate to email or call. Below are most of the products available.


Stern Engine Mount Set, B5/B6/B7, Soft (except V8)





Stern Pro Engine Mount Set, B5/B6/B7, Firm(except V8)





Stern Rear Differential Carrier Bushings, all B5





Stern Rear Differential Power Ring Insert, all B5





Stern Transmission Mount, B5 1.8T Manual, Driver Side





Stern Transmission Mount, B5/C5(excl. 1.8T driver side)





Stern Adjustable Upper Control Arms, B5/B6/B7/C5





Stern Rear Subframe Brace, MK5

APTuning, LLC

Virtually all stern products are back in stock!!