BMW Drivetrain Parts

Engineered in-house, our torque plate is designed to provide a robust and uniform clamping surface between the flywheel and crankshaft across a range of BMW engine applications. Compatible with both factory and Turner performance flywheels, it helps prevent surface galling and ensures consistent torque distribution during installation.

Features:

Prevents galling and wear at the crankshaft-to-flywheel interface under high clamping loads
Promotes even load distribution for improved fastener integrity and long-term reliability
Compatible with a variety of BMW flywheel setups, including OEM and aftermarket configurations
Design:

Precision-machined from cold rolled steel for high strength and dimensional accuracy
Heat treated to 32 HRC for increased surface hardness and wear resistance
Clear zinc anodized for enhanced corrosion protection
Laser-etched Turner logo
Ideal for performance builds and drivetrain refreshes, this torque plate is a critical component for maintaining proper flywheel installation and maximizing long-term durability across multiple BMW platforms.

The ULTIMATE shifter upgrade for your BMW! Experience more precise throws, less shift lever travel, and an all-around transformation in your shifting experience.

For dozens of years, enthusiasts have critiqued the imprecise and vague feeling of BMW manual transmissions. Plagued with long throws, fore and aft play in gear, and a generally loose feeling, your OEM BMW shifter leaves much to be desired. While most standard carrier-mount short throw shifter kits will aid in reducing throw length and eliminating side-to-side play in gear, some enthusiasts long for a hardcore, race-inspired shifter that completely removes play and excessive throw length. At Turner Motorsport we share the same desire and set out to offer the ULTIMATE upgrade with this Performance Chassis Mount Short Shifter.

WHY UPGRADE?

Factory BMW shifter assemblies are complex by nature. The main component of this assembly is the shift carrier, a cast aluminum piece positioned inside the transmission tunnel that incorporates bushings at both ends for mounting. Like most factory parts, these bushings are designed to reduce NVH (noise, vibration, and harshness) transmission to the cabin. To the spirited driver, however, these bushings translate to flex and vagueness in the shift lever. Moreover, because this carrier is mounted to both the transmission and the body, the entire shifter assembly will "float" with the driveline, further increasing the vague and imprecise feeling of your shifter.

Our Performance Chassis Mount Short Shifter removes the shift carrier assembly entirely—removing any prospect of flex caused by bushings or driveline movement. By contrast, this chassis mount shifter offers a drastic reduction in shift lever travel, vagueness, and side-to-side play. An elevated base allows for moving the fulcrum point upwards, resulting in a much shorter and more precise throw. Shift times are further reduced by a tall, "rally style" shift lever, used to aid in leverage while also bringing the lever closer to the steering wheel. Our design incorporates a proprietary centering spring design, which is adjustable for increasing or decreasing self-centering force. In short, this design eliminates all the drawbacks of your factory BMW shifter, translating to more control, greater precision, shorter throws, and faster shift times.

FEATURES & BENEFITS

Reduced Throw: Modified shifter geometry and heightened fulcrum point translate to a shorter shift lever throw
Improved Shifter Feel: Eliminating the shift carrier and associated bushings drastically reduces "slop" and side-to-side play in the shift lever
Increased Precision: Mounting the shifter to the chassis allows for little to no variation in gear selection
Universal Fitment: Fits many BMW chassis with the provided base plate and hardware (see "Fits These Cars" for exact fitment information)
DESIGN

6061 aluminum, 4130 steel, and 316 stainless steel construction
A type-II black anodized finish
Adjustable self-centering spring
"Rally Style" shift lever
Spherical bearing pivot with maintenance-free brass insert
Product Development:

Our Chassis Mount Shifters are designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing.

The factory BMW S65 dual-mass flywheel is engineered with comfort in mind, catering to the luxury-oriented expectations of the brand’s driving experience. Its design focuses on dampening drivetrain vibrations, smoothing out gear transitions, and minimizing harshness during operation. However, this refinement costs valuable performance. The dual-mass flywheel adds a substantial 27 lbs of rotational mass to the drivetrain, which significantly hinders throttle response and makes rev-matching feel sluggish and disconnected. Moreover, dual-mass flywheels are notorious for being a weak link in modified or high-performance builds and can prove costly to replace when they inevitably fail.

Our Single-Mass Lightweight Flywheel Conversion addresses all of these shortcomings with a purpose-built, lightweight, single-mass design that prioritizes performance. Weighing in at only 19 lbs., this design significantly reduces rotational mass, allowing your S65 to achieve its true motorsport potential!

Features & Benefits:

Precision machined from 4140 HT heat-treated chromoly steel for exceptional toughness, even wear properties, and increased durability.
Material quality promotes even wear across the entire friction surface, prolonging component lifespan.
Heat treated to HRC 28-32, tempered to relieve stress and improve dimensional stability.
Hardness improves component wear characteristics.
Black oxide coated for corrosion resistance on non-friction surfaces.
Precision balanced to exceed OEM specification (G16 spec to 175g-mm).
Specifically designed to work with S65 OE-architecture clutches.
Optimized step height maximizes clutch clamp load and offers a prolonged service life.
Performance:

8 lbs. lighter than the factory BMW flywheel!
OEM Dual-Mass: 27 lbs.
Turner Motorsport Single-Mass: 19 lbs.
Faster revs
Improved throttle response and acceleration
Allows for a more engaging driving experience and delivers a feeling of direct connection
Installation:

Flywheel Hardware: For added peace of mind, apply Blue or Orange Loctite when installing factory flywheel bolts that do not come with pre-applied threadlocker.

BMW E30 325i/iS DSSR (187mm) - Turner Motorsport is the ultimate solution to eliminate shifter slop, providing tighter and crisper shifts for your BMW. Developed in collaboration with Rennline, this Dual Shear Selector Rod (DSSR) is designed to significantly reduce flexibility in the selector rod, ensuring a more precise and responsive shifting experience. Whether you're using the stock shifter or a Turner short shift kit, this DSSR will enhance the accuracy of your gear selections with minimal effort.

Does not include a new selector rod joint.

Benefits:

Enhanced Shift Precision: Reduces play and deflection in the linkage, delivering a more positive feel in the shifter.
High-Quality Construction: Crafted from 303 stainless steel for superior corrosion resistance and long-lasting durability.
Compatible Design: Fits BMW E30 325i/iS models with selector rod part 25111221657 and selector joint part 25117580281.
Improved Performance: Works seamlessly with both stock and Turner Motorsport short shifters.
Complete Kit: Includes necessary hardware for easy installation and optimal performance.

Turner Motorsport Dual Shear Selector Rod (DSSR)

Enhance your N54-equipped 135i or 335i’s driving feel with the Turner Motorsport DSSR. Designed to give your shifter a much more precise and solid connection, this DSSR replaces the OEM selector rod, eliminating the play and deflection that come from single-shear designs. Pair it with a Turner short-shift kit for the ultimate shifting upgrade.

Think of the DSSR as a major upgrade from the single-contact OEM rod, much like riding a bike with two hands instead of one: you have stronger, more precise control over each gear change. With its dual-contact setup, the DSSR “sandwiches” both sides of the shifter and transmission, creating a direct link that feels solid, eliminating the vague and sloppy feel of the factory setup.

Key Benefits:

Enhanced Precision: Significantly reduces deflection and play, giving you a more connected feel while shifting Compatible with Factory & Aftermarket Shifters: Perfect for custom setups as well as stock configurations Durable Build: Fabricated from high-quality 303 stainless steel, offering rust resistance and longevity Complete Hardware Included: Comes with zinc-plated hardware for a secure installation Specifications:

Material: 303 stainless steel construction Compatibility: Replacement for part #25117524722 (E8X/E9X N54 models) Installation Design: Two-piece assembly with captive pins, designed for simple alignment and adjustability Fitment: Specially engineered to fit the tight N54 carrier without interference Installation Tips:

Remove your factory selector rod and take note of its orientation. Attach the DSSR to both the transmission selector joint and lower shift lever. Shift to 3rd or 5th gear for maximum access to the supplied hardware, then secure tightly.

Turner Motorsport Polyurethane Shifter Arm Bushing

Want more responsive and accurate shifts without sacrificing comfort? The Turner Motorsport Polyurethane Shifter Arm Bushing is the perfect enhancement to reduce unwanted movement and play in the shift arm assembly. Factory rubber bushings absorb vibrations for smoothness but compromise direct feedback and often wear out, leading to sloppy, imprecise shifting.

Crafted from high-performance polyurethane with a corrosion-resistant 304 stainless steel sleeve, this bushing maintains stability without stretching or wearing out like rubber. Experience the tactile feel of more precise shifts, with minimal NVH (Noise, Vibration, and Harshness) added to your drive. A must-have for any driver looking to take control of their BMW's performance.

Key Features:

Precision Control: Firmer than factory rubber for a crisp, responsive shifter feel Long-Lasting Materials: Made with durable 70a polyurethane and a 304 stainless steel mounting sleeve Easy Installation: Direct replacement—no modifications needed OEM Compatibility: Replaces BMW part numbers 25111222015 and 25111222652 Specifications:

Material: High-quality 70a polyurethane and 304 stainless steel Made in the USA: Proudly manufactured with quality materials Durability: Improved lifespan over factory rubber bushings, reducing slop and enhancing gear engagement

Revitalize your BMW driving experience with the Turner Motorsport Double Adjustable Short Shift Kit. BMWs have suffered from long throw shifters, but Turner Motorsport has the perfect remedy. This kit offers double adjustability, allowing users to fine-tune height and throw, rediscovering the joy of driving.

Worried about the long shifter? Turner's rally lever extension, available separately, provides a Quick Change option, allowing easy switching between long and short levers. Whether your car is built for the track, weekend adventures, or daily commuting, Turner's short shifter kit is the ideal solution.

Installation is a breeze compared to competitors, thanks to the custom bearing cup, enabling easy inside-car installation (for applications using the stock shifter arm).

Key Benefits:

• Adjustable throw from conservative to ultra-short
• Ultra-crisp shifter feel for quicker, more precise shifts
• Enhanced driving experience

Installation Features:

• Bearing cup assembly for easy inside-vehicle installation
• "Quick Change" between standard and "Rally Style" upper shift levers

Adjustability Features:

• Independently adjustable knob height
• 22mm adjustment range for fine-tuning shifter throw
• Independently adjustable shifter throw

Design Features:

• CNC machined lower shifter assembly from 4140 chromoly steel
• Melonite coated with 304 stainless steel shifter ball and Nylatron® NSM bushings
• 10mm adjustment range in the lower shift arm
• Shift levers and shifter bearing cup assembly machined from 6061-T6 aluminum
• Type II anodized for exceptional durability and corrosion resistance
• Rally Upper Shift Lever machine grooved for OEM boot compatibility
• Black delrin knob with standard ⅜-16 thread
• Compatible with OE BMW shift knobs or aftermarket shift knobs

Turner Motorsport's commitment to perfection is evident in the development of the short shifter, in association with Rennline. The result is a robust, durable, and aesthetically pleasing Dual Shear Selector Rod (DSSR), ensuring a more precise shift by reducing flexibility in the selector rod.

Turner Weighted Shift Knob - 6 Speed:

Prepare for an elevated driving experience with the Turner Weighted Shift Knob. This 6-speed coin-designed knob not only feels fantastic but also enhances shifting with added weight, resulting in faster engagement. Crafted from billet 6061-T6 aluminum, CNC machined for precision, and anodized for durability, it's the perfect complement to Turner's short shift kits.

Turner Motorsport presents the Double Adjustable Short Shift Kit, providing a solution to the historically long throw shifters in BMWs. Turner's short shifters, with height and throw adjustability, offer a double-adjustable feature, allowing users to find their preferred driving sweet spot.

For those curious about the long shifter, Turner's rally lever extension (available separately) provides a Quick Change option, making switching between long and short levers effortless. Whether your vehicle is for track use, weekend adventures, or daily commuting, Turner's short shifter kit caters to diverse needs.

Key Benefits:

• Adjustable from a conservative short throw to an ultra-short throw
• Ultra-crisp shifter feel for quicker, more precise shifts
• Enhanced driving experience

Installation:

• Bearing cup assembly for easy in-car installation
• "Quick Change" between standard and "Rally Style" upper shift levers

Adjustability:

• Independently adjustable knob height
• 22mm adjustment range to fine-tune shifter throw and feel

Design Features:

• Lower Shifter Assembly CNC machined from 4140 chromoly steel
• Melonite coated, 304 stainless steel shifter ball, and Nylatron® NSM bushings
• Shift levers and shifter bearing cup assembly machined from 6061-T6 aluminum
• Type II anodized for exceptional durability
• 22mm independent height adjustability for shift levers
• Rally Upper Shift Lever machine grooved for OEM boot compatibility

When Turner developed their short shifter, the goal was to enhance the BMW shifter assembly's precision and smoothness. Developed with Rennline, the Dual Shear Selector Rod minimizes flexibility for a more precise shift.

Turner Weighted Shift Knob - 6 Speed:

The Turner Weighted Shift Knob promises a fantastic driving experience. The added weight ensures faster engagement and an overall improved shifting experience.

Features:

• Anodized billet aluminum core
• Extremely durable Delrin outer construction
• Weight: 340g (11.99oz)
• 6 Speed Coin design
• Anodized billet shift boot collar with Turner logo

Turner Polyurethane Shifter Arm Bushing:

Enhance your shifting experience with Turner Motorsport's Polyurethane Shifter Arm Bushing. Designed for crisper shifting with reduced NVH.

Features:

• Corrosion-resistant 304 stainless steel mounting sleeve
• Stiffer bushing for a crisper shifter feel
• Ready to install, no modifications required
• Replaces Genuine BMW part numbers 25111222015 and 25111222652
• Improved durability over OEM rubber
• Made in America

Upgrade your BMW driving experience with Turner Motorsport's precision-engineered performance products.