Moderate Lightweight Steel Stg2 Flywheel/M5 hybrid Clutch package - E46 M3 6-speed & SMG -16.9 lbs.

Purchase Moderate Lightweight Steel Stg2 Flywheel/M5 hybrid Clutch package - E46 M3 6-speed & SMG -16.9 lbs.

ALL-NEW HYBRID M5 CLUTCH CONVERSION WITH 16.9lb STEEL FLYWHEEL

"Moderate Weight" steel flywheel (16.9 lbs) features weight reduction from OE, but less than typical aluminum flywheel.

Designed specifically for turbo applications (where more chassis load is preferable for developing boost) and providing the superior clutch capability of the M5 design.

Also suitable for non-turbo cars where quiet, rattle-free operation must be provided. Still provides a noticeable "lightweight" flywheel effect with increased acceleration.

Ultimate throttle response and faster acceleration at your command...

UUC's unique "sprung hub" clutch design Stage2 lightweight flywheel has been named one of European Car magazine's "Top 10 Products" for 2003 in the E36 fitment. Now the same technology is available for the E46 M3.

Second-generation "Stage 2" technology now available for E46 M3.

Tipping the scales at only 16.9lbs, this steel flywheel boasts the same great features as our first-generation flywheel, but is designed to use the pressure plate, and throw-out bearing from the 3.6 liter E34 M5 and UUC's own sprung-hub clutch disk (available in different materials depending on intended use).

Big news for E46 M3 owners!

Many E46 M3 owners have experienced mushy clutch feel, inconsistent engagement, and premature wear of the clutch in their manual-transmission cars. The reason is quite simple - the original BMW (LUK-manufactured) clutch in the E46 M3 has a new "SAC" (Self Adjusting Clutch) design. This new mechanism built into the clutch pressure plate is supposed to keep the clutch pedal engagement point the same as the clutch wears... but in all reality, it's a case of "an answer to a question that nobody was asking." They have added a layer of complexity and feedback isolation, filling a need that didn't need filling - it is not too often that anybody notices that their clutch engagement point as moved 1/2" over 50K miles.

The SAC mechanism itself causes problems; it over- or under-adjusts the pressure plate and therefore causes the clutch to slip or burn out prematurely. They are also known to shift, causing the pressure plate release fingers to slip off the plate, keeping 1/3 of the pressure plate engaged at all times. Bottom line is that the only fix is a complete clutch job, and your dealer is likely to claim "driver abuse". We have seen it happen too many times.

The SAC mechanism may not give a clean release like a standard clutch. Instead of just two sets of springs, there is an adjuster mechanism that makes engagement feel mushy or slow.

The M5 component conversion eliminates the SAC mechanism and restores traditional clutch feel with predictable and crisp engagement.

This clutch has several advantages for the enthusiast driver:

• Maintaining the reliability and over-the-counter availability of a BMW factory part.
• Greater clamping force than standard 3-series clutch.
• Elimination of the SAC mechanism.
• Incorporates a sprung-hub design for quiet operation with a heavy-duty steel pressure plate.

The advantage of a sprung-hub clutch design is improved resistance (and in many cases, complete elimination) of the residual chattering noise at idle that some lightweight flywheel-equipped cars can experience.

Because BMW spec'd this clutch design for use on the powerful S38-series engine in the M5, it is up to the task of handling the output from the M3's S54 motor.

You can be assured not only of the performance increase you will experience, but the long-term ease of ownership that comes with knowing that replacement clutch components are never any further away than your dealer's parts counter. Ideal clutch combination is the E34 M5 pressure plate and UUC sprung-hub clutch disk, although standard fixed-hub E46 M3 clutch disk (emergency repair) may be substituted - increased gear rattle will result.

Now available - complete Stage 2 flywheel and clutch kits with choice of these clutch components:

- UUC Performance Organic clutch kit - recommended for applications up to 490hp.
- UUC Segemented Kevlar - recommended for high power applications, street use and track use up to 650hp.
- UUC UltraSmooth Cerametallic - track use, light drag racing, applications above 490hp.
- UUC MultiPuck Ceramic - 6-puck - drag racing.

Not sure which clutch? CLICK HERE for clutch material selection guide.

Purchase Moderate Lightweight Steel Stg2 Flywheel/M5 hybrid Clutch package - E46 M3 6-speed & SMG -16.9 lbs.