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JRZ Suspension Engineering is proud to offer our newest triple adjustable racing damper. the JRZ 12 31. Building upon the years of success of our original triple adjustable damper. the JRZ 12 31 takes our damping philosophy to the next level. Every adjustment has an increased damping force range with finer adjustments engineered to enable the chassis tuner to make significant predictable changes every time. Compression adjustments are separated into the high speed and low speed piston velocity ranges affecting the bleed and blow off points of the damping curve. All oil flow paths in the JRZ 12 31 have been redesigned to maximize efficiency and give crisp feel to the driver. Rebound valving has been completely redesigned to eliminate influence over compression forces and smooth pressure development. At the heart of the new JRZ 12 31 package is our latest motorsport piston. designed to give increased control over base characteristics. reduce hysteresis. and operate smoother. To ensure that the valving designed into the JRZ 12 31 are the determining forces. JRZ has included new low friction coatings. seals and bearings with this package. Custom applications are available. An easy to use system. the JRZ 12 31 enables the chassis tuner to achieve the desired mass control and handling with precision. Digressive high speed compression blow off adjustment allows for a stiff compression valving while maintaining smooth response and without losing traction. The low speed adjustment is a powerful tool that enables the chassis tuner to maximize grip and optimize vehicle balance. The result is a damper that provides ultimate chassis and ride height control with maximum mechanical traction. The JRZ standard large 22 mm piston rod works in concert with the high speed valving to maximize blow off valve response. achieving solid chassis control without using a high spring rate.

Features

• Rebound adjustment independent from compression
• Extra large adjustment range
• 12 clicks low speed compression
• 21 clicks high speed compression
• 24 rebound • High response piston
• Precise canister
• Low friction
• Adjustable gas pressure

JRZ 12 31 dampers are shipped with 360 degree swivel hoses and are available with zero-inclusion quick disconnects for mounting canisters within the chassis for ease of adjustment accessibility. Our newest motorsport piston has been developed to deliver a smooth and responsive damping characteristic.  To customize track to track setups and tailor the chassis to the driver; the JRZ 12 31 has an adjustment range able to provide damping to spring configurations ranging from 1.5-6Hz on vehicles with moderate to large aerodynamic loads. Even with a large range. each adjustment is designed to be small. even steps giving precision and confidence when making changes. The JRZ 12 31 is here to take you to the next level. Dedicated racing cars with experienced drivers deserve the professional technology JRZ delivers. With valving designed and innovated by JRZ Suspension Engineering. the JRZ 12 31 is shipped as a custom configuration always tailored to the customer’s needs. and always comes with our world renowned personal service.

Benefits

• Precise control of the chassis and unsprung masses
• Easy to change damping curves
• Large adjustment range. with fine tuning ability

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COMPETITION CLUTCH
Stage 3 - Street/Strip Series 2600 Clutch Kit

This segmented Ceramic material with a performance pressure plate will provide the ultimate in street and strip combinations. This assembly is suited for up to 150% increase in torque capacity. Provides quick but smooth engagement and extended life.

The 2600 Series kit includes a performance pressure plate; a high torque sprung disc with segmented Ceramic facings; all applicable bearings; and the appropriate alignment tool.

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COMPETITION CLUTCH
Stage 4 Sprung - Strip Series 1620 Clutch Kit

This assembly; available with a double spring; six rivet carriage is good for ease of gear transition with higher horsepower. This disc complimented by a performance pressure plate provides up to 250% increase in torque capacity. 300 mile break-in recommended with this set-up.

The 1620 Series kit includes a performance pressure plate; a six puck high torque sprung disc with Ceramic buttons; all applicable bearings; and the appropriate alignment tool.

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Cosworth High Performance Head Gaskets engineered to seal in power under most demanding condits. Constructed from stainless steel with a folded stopper layer; each application features superior sealing compared to conventional multi layer steel gaskets. Additionally; Cosworth High Performance Head Gaskets manufactured from pre-coated cut stainless steel resulting in uniform coating distribution consistent shape.
Key Features
Individual cut layers of stainless steel with superior consistency compared to laser gaskets
Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or areas
Manufacturing dimensional tolerance of 0.001
Die manufacturing process ensures smooth edges; unlike laser gaskets
Cosworth's gaskets feature a folded stopper layer additional torque around each cylinder. width of sealing area is specific each application thereby providing ultimate sealing properties
Available in a range of thicknesses specific applications Learn More

Cosworth MaxSport brake kits feature lightweight machined hard anodized fully forged calipers. They engineered to provide a 20-percent reduction in weight without sacrificing stiffness or performance over standard Sport kit.
Cosworth 2-piece rotors designed 10-30% better airflow than directional vaned racing rotors. They were produced with a proprietary cast iron formula; which specified with durability in mind. hats brackets made with a special type of billet aerospace aluminum are machined in USA.
All parts bench tested prior to shipment. Each caliper is 100% pressure tested to 2;500 PSI. Every brake line is 100% pressure tested to 4;500 PSI. Every assembled two-piece rotor is tested runout. Hats brackets CNC machined to standards. Each is optimized specific vehicle application.
Specs:
Bolt-in bridge minimizes caliper compliance
20% reduction in weight over Cosworth Sport calipers
2-piece rotor design allows 10-30% better airflow greatly improving performance
DOT Legal Stainless brake lines with clear abrasion-resistance cover
Piston sizes optimized each vehicle application to maintain bias
DifferenTiAL'ston sizes minimize taper longer life a firmer pedal
Dust boots standard reduced maintenance
All finished parts 100% leak down pressure tested Learn More

Cosworth High Valve Springs the result of countless hours of engineering; testing validation ensuring best possible spring high performance applications. Cosworth High Valve Springs wound from worlds finest Japanese Kobe steel feature dual chamfered ends to reduce wear on seats retainers. Each spring been engineered with increased seat pressure along with higher lift capability optimum performance potential improved valve control. Single spring design allows easy installation with no machining required is perfect typical high performance use. />Key Features
Manufactured from finest Japanese Kobe Steel
Single spring design easy installation
Dual chamfered ends
Increased performance Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

Flat Rate Shipping: $155 - Please select at checkout.
SEIBON Carbon Fiber Trunks and Hatches are designed to replace your factory trunk or hatch and accept all hinges. handles. glass and locks for 100% Bolt On fitment. Cut weight in style with SEIBON Carbon Fiber Trunks and Hatches.
OEM Style guarantees your SEIBON Carbon Fiber Trunk will look just like factory. No additional fins. ducting or alterations from stock aesthetics.
All SEIBON Carbon Fiber Products are:

Hand Laid
Wet Carbon Fiber
Clear Gel Coated from the Factory
Inspected Before Shipping Carbon Fiber Trunk/Hatch
OEM Style
Engine :-
Aspiration :- T
Vehicle Engine Options :- ALL
Vehicle Interior Options :- L4 Aspiration: T
Vehicle Exterior Options :- Fuel: FI-GAS
Cylinder Type :-
Vehicle Options :-
Carbon Fiber Trunk/Hatch
OEM Style
Engine :-
Aspiration :- T
Vehicle Engine Options :- ALL
Vehicle Interior Options :- L4 Aspiration: T
Vehicle Exterior Options :- Fuel: FI-GAS
Cylinder Type :-
Vehicle Options :- Learn More