ARP Flywheel Bolts are a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated, ensuring complete heat penetration, to increase the clamping load up to 200,000 psi. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best bolts we've found and we highly recommend them in any and all applications. 

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMW Engines: 
M20 2.5L

Turner Motorsport Lightweight N55 Flywheel & Upgraded Clutch Kit

Unlock the full potential of your N55-powered BMW with our performance-driven clutch and flywheel kit. Designed to enhance daily drivability while delivering increased power handling and improved throttle response, this kit is the ultimate upgrade for enthusiasts seeking more from their vehicle.

Why Choose This Kit?
This setup features the Turner Lightweight N55 Flywheel, precision-engineered for quicker acceleration, faster rev-matching, and a more responsive driving experience. Paired with an upgraded OE clutch from the high-performance 335is and F10 550i(V8 Bi-Turbo), this combo is capable of handling over 500 ft-lbs of torque while maintaining smooth, factory-like engagement and durability.

The factory dual-mass flywheel may prioritize smoothness and efficiency, but it comes at the cost of responsiveness and is prone to failure in high-performance applications. The Turner Lightweight Flywheel solves these issues with a single-mass design that strikes the perfect balance between comfort, performance, and reliability making it ideal for both daily driving and spirited track use.

Kit Contents:

Turner Lightweight N55 Single-Mass Flywheel (18.6 lbs, 10 lbs lighter than stock)
Upgraded OE Clutch – Supports 500 ft-lbs+
OE Clutch Fork - P# 21517564027
OE Throwout Bearing
Brass Clutch Fork Pivot Pin - P# 21511223328
OE Flywheel Bolts - P# 11227520706
OE Pressure Plate Screws - P# 21207548052
Pivot Pin Retaining Spring - P# 21517570284
Transmission Mating Dowels - P# 11117524470
Flywheel Features:

Precision-machined 4140 HT heat-treated chromoly steel for durability
Black oxide coating to resist corrosion
Precision balanced to exceed OEM standards
Optimized step height for longer clutch life and consistent performance
Clutch:

Upgrade for 135i/335i/535i models from the 335is! Featuring a heavy-duty clutch with more holding power and a stock-like pedal feel. Excellent solution for If your clutch is slipping, or the engagement isn't what it used to be, it's time for a replacement. Slipping clutches won't allow your BMW to accelerate properly and can pose problems under a load such as going up large inclines. Also, a worn clutch can cause less precise and engaging shifts. By replacing your clutch you will restore performance and driving pleasure.

This clutch is an excellent upgrade for non 335is/550i/650i models. It features a more heavy-duty clutch disc and more holding power with stock-like pedal effort.

Transform your driving experience with this Turner Motorsport clutch and flywheel kit - engineered for power, performance, and everyday reliability.

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

• FX100 (Stage I)

• High performance street system

• Holding capacity 70% over stock

• Heavy-Duty reinforced pressure plate

• Hi-Leverage™ pressure ring design

• Sprung hub/cushioned disc

• Steel-backed organic friction material

An excellent performance upgrade so you can enjoy quicker revs and eliminate excess turbo lag. Made of high quality 6061-T6 billet aluminum, with a high-carbon steel replaceable friction surface, this flywheel from Clutch Masters is sure to be a great upgrade for anyone looking to reduce crankshaft drag and increase acceleration.

Typical benefits of a Clutch Masters lightweight flywheel:

• Reduced mass equals increased acceleration
• CM uses only 6061-T6 aircraft grade or better billet aluminum in the manufacturer of its flywheels
• CM uses an OE steel ring gear secured by bolts
• CM offers a limited lifetime warranty
• CM Billet Aluminum Flywheels meet SFI Spec 1.1 or 1.2

This item fits the following BMWs: 
2003-2005 E46 BMW 330i 330ci  only for 6-speed manual transmission 

The FX350 System uses the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc. This clutch is designed for the street enthusiast or weekend racer who plans to abuse their vehicle on an occasional basis and have a spirited driving style.

The FX350 clutch system has a higher holding capacity than a segmented Kevlar lining without compromising the street friendly characteristic Clutch Masters is known for. For year’s enthusiast have had to compromise durability for drivability and vise versa, however with Clutch Masters New Formula button we have closed the gap between these two tradeoffs.

BMW E39 540i Stage 2 Clutch Kit is designed to enhance the performance and reliability of your BMW's clutch system. Ideal for enthusiasts looking to upgrade from the stock setup, this Stage 2 clutch kit delivers superior holding power and durability.

• Increased Holding Capacity: Provides 70% more holding power compared to stock, accommodating higher torque and demanding driving conditions.
• Heavy-Duty Construction: Features a reinforced pressure plate for added strength and longevity.
• Enhanced Durability: Includes a sprung organic/fiber tough disc, ensuring long-lasting performance and smooth engagement.
• Complete Kit: Comes with all necessary components, including a pressure plate, clutch disc, throw-out bearing, pilot bearing or bushing, alignment tool, and pressure plate bolts.
• Flywheel Compatibility: Designed to work with a single mass flywheel (flywheel not included).

Turner Motorsport recommends the BMW E39 540i Stage 2 Clutch Kit for those seeking improved clutch performance and durability.

Upgrade Your Clutch with the Performance Clutch Installation Kit

Elevate your vehicle's clutch performance with the all-inclusive Performance Clutch Installation Kit, tailor-made for a stage one clutch upgrade. This kit incorporates a sturdy steel flywheel and Clutch Masters' FX100 (Stage I) components.

• High-Performance Street System
• 70% Increased Holding Capacity Over Stock
• Heavy-Duty Reinforced Pressure Plate
• Hi-Leverage™ Pressure Ring Design
• Sprung Hub/Cushioned Disc
• Steel Backed Organic Friction Material

Experience improved clutch performance with the FX100, known for its robust design and enhanced holding capacity. This kit is perfect for street applications, providing reliable clutch performance. Included in the package are the Pressure Plate, Clutch Disc, Throw-out Bearing (if applicable), Pilot Bearing or Bushing (if applicable), and an Alignment Tool.