Spec 07-10 BMW 335i/135i Aluminum Flywheel *For Use With Spec SB53x-2 Clutch Kits Only*

Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...

A performance flywheel reduces rotational mass, allowing the engine to rev faster and respond more quickly to throttle input. Lightweight flywheels are a popular upgrade for track builds and sport driving applications where improved throttle response matters. Popular Upgrades Top-selling flywheel upgrades include lightweight aluminum flywheels for naturally aspirated four and six cylinder performance builds, single-mass flywheel conversion kits for dual-mass flywheel replacement on diesel trucks, and high-torque steel flywheels for drag racing and clutch upgrades. What is the difference between a single-mass and dual-mass flywheel? A single-mass flywheel is a solid disc that transmits engine torque directly to the clutch. A dual-mass flywheel uses two plates with a spring dampening system to absorb drivetrain vibration, which is common on diesel and direct-injection engines. Single-mass conversions are popular for performance use but may increase cabin NVH. Will a lighter flywheel a...

At SPEC, we are dedicated to pushing the limits of performance, safety, and strength in every product we create. Our mission is clear: to deliver only the best for motorsport enthusiasts and everyday drivers alike. Join us in experiencing the passion we put into our innovations. Why Choose SPEC? Race-Ready Performance: Designed with the needs of racers in mind, SPEC products excel under pressure. Advanced Technology: Our products, including the new stage 1 pressure plate, utilize cutting-edge materials for enhanced performance. Unmatched Durability: Crafted to maximize friction coefficient, wear life, burst resistance, and engagement quality. Trusted by Enthusiasts: As our own toughest customers, we stand by the quality and performance of our products.   Experience the SPEC Advantage When you choose SPEC, you’re not just purchasing a product; you’re investing in a commitment to excellence. Our products rise above the competition, offering you: Innovative design for superior p...

Welcome to our Transmissions collection, where we bring you a curated selection of high-quality products designed to enhance your experience. Each item in this collection has been carefully chosen to ensure you receive only the best. What You Will Find in the Transmissions Collection: Innovative Designs: Products that stand out with cutting-edge technology and usability. Quality Assurance: Each item is vetted for performance and durability. Variety of Choices: A diverse range of products to meet your specific needs. Expert Recommendations: Handpicked by professionals to ensure top-notch quality.   Why Choose Our Transmissions Products? Our Transmissions products are not just about functionality; they are about elevating your overall experience. Here’s why you should explore this collection: Enhanced Performance: Each product is designed to maximize efficiency and effectiveness. Customer Satisfaction: We prioritize your needs and feedback to ensure every product exceeds exp...