SKU: CSB103
Spec 86-93 BMW 325i Stage 3 Clutch Kit SB103
Upgrade your BMW E30 325 series or E28 528e with the Spec Stage 3 Clutch Kit SB103. This kit fits 1984-1986 325e, 1986 325es, 1987-1991 325i, 1987-1991 325is, 1988-1991 325iX, and 1982-1986 528e models with manual transmissions. It provides 470 ft/lbs torque capacity for street/strip builds using a sprung Kevlar disc and reinforced pressure plate for consistent power handling.
Key Features
- High Torque Capacity: Rated to 470 ft/lbs to manage boosted or high-compression engines without slippage
- Sprung Full-Face Kevlar Disc: SF603 disc reduces wear and resists heat for longer service life in demanding conditions
- Reinforced Diaphragm Pressure Plate: SPEC 1566 cover increases clamp load by 30% over stock for firm engagement
- Quality Throwout Bearing: Includes 83038A bearing for smooth operation and compatibility with OEM hydraulics
- Street/Stripped Design: Balances daily drivability with track durability for modified BMWs
Product Notes
- Resurface flywheel or use new for best results during clutch replacement
- Follow 500-mile break-in with no launches or high RPM to seat the disc properly
- Packed in protective box to prevent shipping damage
Installation Notes
- Professional installation recommended.
- Matches OEM 9-bolt pressure plate bolt pattern for direct bolt-in replacement
- Compatible with stock flywheel. lightweight flywheels may need balancing check
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984-1986 | BMW | 325e | Base |
| 1986 | BMW | 325es | Base |
| 1987-1991 | BMW | 325i | Base |
| 1987-1991 | BMW | 325is | Base |
| 1988-1991 | BMW | 325iX | Base |
| 1982-1986 | BMW | 528e | Base |
Why Choose Spec?
- Spec builds clutches for NHRA drag racing and SCCA road racing teams
- Each kit uses USA-made components tested for real-world durability
- Precision-machined parts ensure exact fit and consistent performance
Frequently Asked Questions
-
Q: Will this fit my 1989 BMW 325i with stock transmission?
A: Yes, direct fit for 1987-1991 BMW 325i base models with Getrag 240 or 260 manual transmission -
Q: What friction material does the disc use?
A: Sprung full-face Kevlar SF603 disc for high heat tolerance and reduced glazing compared to organic discs -
Q: What warranty coverage applies?
A: 12-month manufacturer defect warranty when installed by certified shop with proof
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Sturdy cardboard box measuring 14 x 14 x 6 inches
- Weight: 19 lbs
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A performance clutch system is one of the most impactful drivetrain upgrades available for any manual transmission vehicle. From street-friendly organic disc kits to heavy-duty ceramic setups built for drag racing and track use, matching the right clutch components to your power level and driving style keeps engagement consistent and power transfer reliable.Popular UpgradesStage 1 and Stage 2 clutch kits with upgraded pressure plates and organic or hybrid friction discs are the most popular choice for street builds making 300 to 500 horsepower. Stage 3 and Stage 4 ceramic or Kevlar disc setups handle the demands of forced induction or high-compression builds. Lightweight aluminum flywheels paired with upgraded clutch kits improve rev response and make gear changes faster on both street and track applications.What clutch stage do I need for my build?Stage 1 clutches are rated for lightly modified street engines up to about 350 horsepower. Stage 2 kits cover 350 to 500 horsepower with...
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Clutch Kits - Single
Single-disc clutch kits provide everything needed to replace the core friction components in a manual transmission system in one box. A disc, pressure plate, and release bearing shipped together as a matched kit eliminates the guesswork of sourcing compatible parts separately and ensures consistent performance from break-in through the life of the clutch.Popular UpgradesStage 1 organic single-disc kits are the best choice for street-driven vehicles at stock or lightly modified power levels, offering a smooth pedal feel close to OEM. Stage 2 kits using a high-clamp pressure plate and a sprung-hub organic disc are the most popular upgrade for modified street engines in the 300 to 500 horsepower range. Stage 3 ceramic single-disc kits handle forced induction builds where heat resistance and torque capacity are the primary requirements.What does a single-disc clutch kit include?A single-disc clutch kit typically includes one friction disc, one pressure plate assembly, and one release be...
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Drivetrain
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...
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SPEC
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...
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