Protuner Ltd is a performance engine tuning business located in the UK.

At Protuner we specialise in ECU re-mapping and calibration, fuel systems, engine building, fabrication and performance parts.

With over 15 years industry experience our own workshop and in house dyno facility we are able to design, develop, test and manufacture the best parts for your vehicle.


Rear Differential Support Bracket Brace Mount BMW E90 E92 E82 335i 135i 335D

PROTUNER Differential Support Bracket Brace for E82 135i and E90 E92 335i/d 

This listing is for the LARGE CASE Differentials
Large case is found in all manual transmission 135i 335i 335d E90 E92 E93 E82

This brace attaches the rear differential to the subframe allowing for better launches, less wheel hop, and a more stable feeling rear chassis. Our unique one piece construction eliminates welding weak points common on other similar units. It won't rip apart at the welds because there are none.

Made in the UK!


Applications

E Chassis 135i and E9x 335i, 335ix, 335d

BMW 135i Fitment

• All 135 Manual Transmission

• All 135 DCT Transmission


BMW 335i, 335ix, and 335d Fitment

• All 335 Manual transmission

Some early auto transmission 335i

• All 335d (Large diff brace, see other listings) 


BMW 335is Fitment

• All 335is Manual Transmission

• All 335is DCT Transmission


Features and Benefits

Tightens chassis


Reduces axle tramp


Reduces differential bearing Load


plated steel hardware included


Precision made one piece design for a perfect fit


Heavy-gauge 5mm steel construction for maximum strength and durability, plated anti corrosion coating


Easy install


Made in the UK

These are also available for collection from our workshop in Coventry.

Any questions please ask