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Spec Clutch SB054 Stage 4 Clutch Kit - Carbon Semi-Metallic Puck Disc

(1996-1999 BMW 328i; 1996-1999 BMW M3; 1997-1998 BMW Z3 Roadster; 1999-2001 BMW Z3 M Coupe/M Roadster; 1989-1995 BMW 525i; 1996-1999 BMW 328is + 2 more models)

Manufacturer

Picture for manufacturer Spec Clutch

Part Number

SB054
9 reviews
Sale Price

$514.74

Estimated ship date Saturday, November 28

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Fitment guaranteed

Fitment guaranteed

Product Details

The SPEC SB054 Stage 4 Clutch Kit is engineered for heavily modified, high-output engines where maximum torque capacity, instantaneous engagement, and reduced rotating mass are critical. This is a purpose-built performance clutch designed for competitive motorsport applications and is not recommended for street use due to its aggressive, on/off engagement characteristics.

At the heart of the Stage 4 system is a high-clamp pressure plate paired with a carbon semi-metallic puck-style friction disc — available in 3, 4, or 6 puck configurations — delivering exceptional torque holding capacity and lightning-fast power transfer. The rigid hub and carrier assembly minimizes flex under extreme load, ensuring consistent and repeatable performance lap after lap.

Key Features:

  • High-clamp pressure plate for maximum clamping force
  • Carbon semi-metallic friction material for superior heat resistance and torque capacity
  • Available in 3, 4, or 6 puck disc configurations
  • High-torque rigid hub and carrier assembly for reduced flex and chatter
  • Includes release bearing and installation tool kit
  • Extremely lightweight design reduces rotational inertia for faster rev response
  • Instantaneous, aggressive engagement profile

Intended Driving Applications:

  • Drag Racing
  • Drifting
  • Road Racing
  • Rally
  • Pulling
  • Circle Track

The SPEC Stage 4 kit represents the top of the SPEC performance clutch lineup, delivering uncompromising performance for drivers who demand maximum power transfer in race and competition environments.

Products specifications

Fits

1996-1999 BMW 328i; 1996-1999 BMW M3; 1997-1998 BMW Z3 Roadster; 1999-2001 BMW Z3 M Coupe/M Roadster; 1989-1995 BMW 525i; 1996-1999 BMW 328is; 1998-1999 BMW 323is; 1993-1995 BMW 525iT

Torque Capacity

420 ft/lbs

I got the part I ordered and will be having someone install it soon looks just fine and I love the chat feature as well.. thinking about buying brake shoes now.. a lot of savings

Ez website great price

Great prices & fast shipping.

They had the best price anywhere on the items I ordered(Recon Lights). Prompt emails and accurate tracking via UPS shipping. I'm pleased and will order more items now that I know they're "legit". Thanks Autoplicity!<br><br>Nick C.

GOOD SERVICE, FAST SHIP, CHEAP PRICE

Thought I had an issue with the customer service, and they worked it out PROMPTLY! That's a good customer Service relationship!<br>They even agreed to credit me my shiiping for a slight mistake they made!<br>VERY HAPPY!

I ordered this product and Wednesday in the morning and it was on my door step Thursday morning with regular shipping. The ordering process was super easy and the price was $35 cheaper than any other online retailer. The Rack is awesome, easy to assemble took me about 20 minutes by myself, put on my jeep hooked up the bikes and off I went, fantastic design, I highly recommend the Rola NV2 bike rack and highly recommend Autoplicity

Not sure if they overlooked my order but I didn't get my shipping info (3 days after ordered) until I emailed asking for status update. I received a response the following day and all my items ordered came 2 days later...much faster than I had anticipated considering the "delay" or lack thereof (5 days total). Long story short...items are as described, best prices (from what I can researched online for same items/brand) and resonable shipping prices. the selection and brand(s) offered were somewhat limited for my specific needs, otherwise I would've ordered more.

I was trying to locate a hi volocity radiator fan and for it at Autoplicity at a very good price. The item was shipped fairly quickly concidering it most likely had to come from the manufacturer. Thanks for your help.

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