MOTORSPORT

Upgrading your BMW’s drivetrain can provide tremendous performance improvement. Drivetrain upgrades are a surprisingly easy way to make your BMW accelerate harder and handle better. It’s one of the most overlooked BMW performance modifications!

Our BMW driveline upgrade options vary from gear ratio changes+ limited slip differential conversions, to rear end conversions and complete transmission swaps. Tell us what you want and we will be able to help you no matter what you have in mind.

Every custom built BMW differential is fully rebuilt with new seals and bearings. We can also install BMW performance differential bushings to reduce drive-line wind-up and finned differential covers for improved differential cooling.

A limited slip differential will balance the power through both rear wheels. With open differentials when one wheel looses traction (spins) the power is transferred to the spinning wheel dramatically affecting acceleration. This drastically decreases acceleration both in straight line, and especially during cornering when the inside tire becomes unloaded due to weight transfer.

High performance driving and track use can quickly wear out your limited slip differential. The differential limited-slip clutch packs can wear to the point where your limited slip differential no long provides traction aid and acts like a standard open differential. This has a negative affect on acceleration and handling.

The decrease in traction aid is very gradual. You probably won’t notice. But you will immediately notice improved traction when your differential is rebuilt and working 100%. You will be amazed how much better a fresh rebuilt limited slip differential will perform!

BMW Differential Upgrades

Every custom built BMW differential is fully rebuilt with new seals and bearings. We can also install BMW performance differential bushings to reduce drive-line wind-up and finned differential covers for improved differential cooling.

A limited slip differential will balance the power through both rear wheels. With open differentials when one wheel looses traction (spins) the power is transferred to the spinning wheel dramatically affecting acceleration. This drastically decreases acceleration both in straight line, and especially during cornering when the inside tire becomes unloaded due to weight transfer.

High performance driving and track use can quickly wear out your limited slip differential. The differential limited-slip clutch packs can wear to the point where your limited slip differential no long provides traction aid and acts like a standard open differential. This has a negative affect on acceleration and handling.

If you track your e30, e36, e46, or e92 M3 , a performance upgraded, or rebuilt rear differential is the upgrade you need to win!

BMW M Rear End Conversion

Tyspeed Specializes in BMW performance. We have experience and have performed many BMW E82/E90/E92 Non M – M3 Rear end conversions. This involves replacing the entire rear subrame, differential, axles and suspension of your NON M chassis vehicle to a BMW M3 Rear end. Although a large project, the gains are huge. Starting with a customized driveshaft, we then swap the rear subframes and build the BMW M rear end to your specifications using new POWERFLEX bushings, and can perform the swap with various upgrades including adjustable toe links, upgraded rear brakes, and more. Here is a customer’s 2011 135i that we performed the E92 M3 Rear end conversion on, Including a full Powerflex bushings upgrade. This conversion can also be performed on NON-M BMW E46 Chassis, utilizing similar techniques and parts.

BMW SMG to Manual Transmission Conversions