ACT BM14-HDSD Rigid Clutch Kit 842385025076 135/335/535/435/Z4 Hd/perf

( Brand: Act ), ( Part Type: Clutch ), ( Manufacturer Part Number: BM14-HDSD ), ( UPC: 842385025076 )

Review ACT Bmw 135/335/535/435/z4 Hd/perf Rigid Clutch Kit fits STREET Z4 335 535 2007

Introducing the ACT BM14-HDSD Clutch Kit, specifically designed for various BMW models including the 135i, 335i, 535i, 435i, and Z4 HD/Perf. This clutch kit is not just an upgrade, but a game-changer for your BMW's performance and driving experience.

The ACT BM14-HDSD kit comes with a high-performance, 2-piece, rigid clutch disc and a high-torque, single mass flywheel. The rigid clutch disc is engineered with ACT's proprietary friction material, providing exceptional clamping force and improved durability. This material ensures a more direct power transfer to the transmission, resulting in smoother shifts and increased horsepower.

The single mass flywheel in this kit is designed to reduce rotational mass. It effectively eliminates the heavy, multi-plate design of the factory clutch system, leading to a more responsive engine and quicker throttle response. This results in a more engaging driving experience and improved overall performance.

The ACT BM14-HDSD clutch kit is also designed for easy installation. It comes with a precision machined, billet steel flywheel housing, which eliminates the need for time-consuming flywheel shimming. Moreover, the kit includes a new pressure plate and release bearing, ensuring a perfect fit and smooth operation.

The clutch kit is also compatible with BMW's Automatic Transmission Downshiftable (ATDS) system. This means that if your BMW is equipped with an automatic transmission and the downshift feature, the ACT BM14-HDSD clutch kit will allow you to take full advantage of this feature for an even more exhilarating driving experience.

In summary, the ACT BM14-HDSD clutch kit is a must-have upgrade for BMW owners who demand superior performance and driving engagement. With its high-performance rigid clutch disc, lightweight single mass flywheel, and easy installation, this clutch kit is sure to elevate the driving experience of your BMW 135i, 335i, 535i, 435i, or Z4 HD/Perf.

The ACT BM14 HD/Perf Street Rigid Clutch Kit is a popular performance upgrade for various BMW models, including the 135i, 335i/330i, 535i/530i, and Z4. Let's explore the potential pros and cons of installing this clutch kit in your BMW.

1. Enhanced Performance: The ACT clutch kit is designed to handle increased power output, making it an ideal choice for BMW owners who have modified their engines for more horsepower.

2. Improved Clutch Feel: The rigid clutch disc provides a more direct and responsive feel, which can lead to better shifting performance.

3. Durability: The HD (heavy-duty) clutch kit is built to withstand the increased power and torque produced by modified BMW engines.

4. Suitability for Track Use: The ACT clutch kit is an excellent choice for those who plan to use their BMWs for track days or high-performance driving.

5. OEM-Quality Materials: ACT uses high-quality materials in their clutch kits, which can lead to increased longevity and reliability.

1. Cost: The ACT BM14 HD/Perf Street Rigid Clutch Kit can be quite expensive compared to stock clutch kits.

2. Installation Complexity: Installing a performance clutch kit like this one can be a complex and time-consuming process, requiring specialized tools and knowledge.

3. Noise Levels: Some users have reported increased noise levels from the clutch, which can be a drawback for those who prefer a quieter driving experience.

4. Potential Shifting Issues: Due to the stiffer clutch disc, some users have reported difficulty in engaging the clutch smoothly, especially in heavy traffic or when starting from a dead stop.

The ACT BM14 HD/Perf Street Rigid Clutch Kit offers significant upgrades for BMW owners looking to enhance their vehicle's performance and durability. However, it comes with a higher cost, installation complexity, and potential noise and shifting issues. Ultimately, the decision to purchase this clutch kit depends on your personal preferences, driving habits, and performance goals.

If you are an enthusiast looking to extract the maximum potential from your BMW, the ACT BM14 HD/Perf Street Rigid Clutch Kit is a worthy investment. However, if you prefer a more comfortable and quieter driving experience, you might want to consider other options. Prospective buyers should also consider the cost and installation complexity before making a decision.

part # bm14 prices

• $784.80-$907.95

specifications maniheader:

• for models: Z4, 335, 535, Street
• for makes: Bmw
• for years: 2007
• brand: Act
• part type: Clutch
• manufacturer part number: BM14-HDSD
• upc: 842385025076

returns maniheader:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

seller maniheader:

• rating: 99.9%
• # reviews: 40208

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• other
• credit card: Discover
• wallet: Google-pay

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: New

shipping maniheader:

• cost: $0.00
• class: Standard
• service: UPS Ground
• transit: 2-6 Days
• type: Fixed
• carrier: UPS

offer maniheader:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: May 27, 2026
• availability: In Stock

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• Act Dn3-hdr6 For 2003 Dodge Neon Hd/race Rigid 6 Pad Clutch Kit (55.7% similar) $585.95–$614.00. (May 27th, 2026)