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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Stage 2 Clutch Kit for Mazda RX-4 1974-1978 1.3L (13B-AP)STREET TRACK APPLICATIONS (OCCASIONAL TRACK USE CIRCUIT TIME ATTACK ROAD RACING) The Super Copper Kit brings a new level of performance to the street and track. Its built with the highest copper content youll find in any organic clutch on the market giving you a better grip than OEM, better heat tolerance, and more consistent performance on and off the track. Backed by a reinforced steel plate and a copper loaded organic facing, its designed to hold
STREET/TRACK APPLICATIONS (OCCASIONAL TRACK USE – CIRCUIT / TIME ATTACK / ROAD RACING)
The Super Copper Kit brings a new level of performance to the street and track.
It’s built with the highest copper content you’ll find in any organic clutch on the market — giving you a better grip than OEM, better heat tolerance, and more consistent performance on and off the track. Backed by a reinforced steel plate and a copper-loaded organic facing, it’s designed to hold more power without giving up smooth street drivability.
This kit uses our reinforced steel-backed, copper-loaded organic disc paired with a heavy-duty single diaphragm pressure plate — delivering smooth engagement you can daily drive, and the grip you need when you push it. It’s the ideal setup for stock, tuned street cars and basic bolt-on builds that want more without giving up drivability.
Like all of our sprung kits, the Super Copper features our patented fully enclosed spring retainer system — protecting you from failures that can cause serious transmission or engine damage, a problem we guarantee you’ll see with other brands.
Every kit is hand-assembled and signed off after multiple quality checks by our senior engineering team (50+ years combined experience), making sure you’re getting real, tested performance — not guesswork.
Pressure Plate Features
- Ductile Iron Friction Plate for heat control
- Reinforced Heavy-Duty Drive Straps
- 4-Stage Heat Treated Diaphragm Spring for durability
- American-Grade Rivets
- 100% Dynamically Spin Balanced for smooth operation
Clutch Disc Features
- Steel-Backed, Super Copper-Loaded Organic Friction Material
- Fully Enclosed Patented Spring Retainer System for long-term protection
- Sprung Hub for easier, smoother engagement
- American-Grade Rivets for maximum strength
Note:
The Super Copper Series is your go-to clutch for daily-driven, tuned, or bolt-on builds. It drives smooth, handles stock-mid power, and stays strong when it heats up.
Torque Holding Capacity: 255
- Super Copper Organic Clutch Disc
- Single Diaphragm HD Pressure Plate
- Pilot Bearing / Bushing (when applicable)
- Clutch Alignment Tool
- Conventional Release Bearing
Break-in Requirements
500 street miles / Keep RPM’s under 4500, no more than half-throttle, no boost (if applicable).
Proper break-in is required in order to retain product warranty, ensure longevity and holding capacity.
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy