Boston’s Local Independent Mechanic

Specializing in BMW, Porsche, and Mini.


Besides ordering different parts for BMW, Porsche, and Mini, German Performance Service has a selection of products:

KW Suspension | KONI Shocks | AWE Tuning | Motul Lubricants and fluids | GIAC | Pagid Racing brake pads | Castrol Motor Oil



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Castrol Oil

Castrol is the world leading manufacturer, distributor and marketer of premium lubricating oils, greases and related services to automotive, industrial, marine, aviation, oil exploration and production customers across the world. Castrol offers lubricants for virtually all domestic, commercial and industrial applications. For automotive lubrication (including motorcycles 2-stroke and 4-stroke engines, car petrol and diesel engines), our products include an extensive range of manual and automatic transmission fluids, chain lubricants and waxes, coolants, suspension fluids, brake fluids, greases, cleaners and maintenance products. They also produce products for agricultural machinery, plant, general industry and marine engineering uses. We’ve used Castrol oil in our personal cars and race cars for years!

Alternative to Dealer Mechanic

KW Suspension

When it comes to coil over suspension systems for daily use, KW Automotive is one of the leading providers world wide today. Rely on their extensive knowledge and experience to supply you with the best in handling and performance. Featuring everything from non adjustable kits, to 3 way adjustable full race kits, KW has something to suit your needs.

Please visit their website at for more information.

Boston Local Independent Mechanic

KONI Shocks

KONI has been in business for 150 years, involved in automobile dampers since 1932 and has produced adjustable telescopic dampers since 1945. In addition, though known best for cars, KONI also builds shocks for trucks, buses, RVs and railway rolling stock as well. What this adds up to is well-earned design and manufacturing experience.

As the maker of the industry’s very first adjustable shock absorber, today they still manufacture adjustable shock absorbers for road and racing. In addition, they have a line of non adjustable STR.T shock absorbers and FSD suspension kits.

We find that KONI is a perfect match for your Porsche, BMW, or other vehicle when it comes time for replacement shocks. The FSD shocks provide tremendous ride quality around town while improving handling. The STR.T provides a sporty shock absorber at a low price point, and the KONI yellow sport is a perfect match for the enthusiast looking for a better performance out of their vehicle without sacrificing too much in ride quality.

Please visit their website at for more information.

BMW Porsche Mini Mechanic

AWE Tuning

AWE Tuning is the authority in performance engineering for German automobiles. From award winning hand-crafted performance exhausts to track tested big turbo kits to vetted performance products including GIAC, Bilstein, H&R, Brembo and more, AWE Tuning innovates, designs, retails and distributes choice performance products globally through it’s preferred network of dealers, online and out of its headquarters outside of Philadelphia, Pennsylvania. Since 1991, our elite team of researchers, engineers, innovators and drivers have track-tested and introduced premium performance upgrades for some of the finest automobiles in the world.

Please visit for more.

BMW parts

Motul Lubricants and fluids

Motul is one of the worlds technological leaders in automotive fluids. From brake fluid, gear oil, ATF, racing oil, and engine oils that meet BMW, Porsche, and Mini’s tough standards of approval, Motul offers everything you need for your vehicle.

Please visit for more information.


Porsche parts


GIAC is a software engineering company with 17 years experience tuning cars. They are known for creating “factory smooth” performance software with exceptional power and reliability. The software replaces the standard software in your car’s engine control unit. It is programmed to adjust ignition timing, fuel delivery, fuel metering, boost settings, rev limiters, and/or speed limiters to optimize performance and, in some applications, fuel economy. Performance-tuned programs are designed to dramatically increase torque and HP without sacrificing smooth drivability. Many programs are also created to accommodate numerous after market performance modifications.

Please visit for a price list and applications.

All software can be installed at our shop in Brighton, MA

Mini parts

Pagid Racing brake pads

Pagid Racing’s products are used at all levels from the club racing competitor up to professional and factory-backed touring car and GT racing teams. Pagid race pads are designed to be the very best that motorsport has to offer, and have a long history of excellent results both on and off the racetrack.

Please visit for more information.

We keep an inventory for Porsche and BMW.