The Competition Clutch Stage 2 Steelback Brass Plus Clutch Kit (Part # 6072-2100) is a purpose-built performance clutch upgrade engineered specifically for the Nissan VQ35DE engine — making it a direct-fit solution for the Nissan 350Z and Infiniti G35 equipped with this powerplant. If you're pushing your 350Z or G35 harder than the factory clutch was ever designed to handle — whether on an aggressive street build or occasional track days — this Stage 2 kit from Competition Clutch delivers a meaningful step up in clamping force and durability without sacrificing daily drivability.
Key Features & Benefits
- Up to 80% Increase in Torque Capacity: The Stage 2 – Street Series 2100 rating means this clutch can handle substantially more torque than a stock unit, making it well-suited for modified VQ35DE applications that have already outgrown the OEM clutch.
- Brass Plus Friction Material with Anti-Burst Steel Backing: The Brass Plus facings are bonded to an alloy (steel) backing, which provides improved heat resistance and longevity compared to standard organic facings. The anti-burst construction adds a margin of safety under hard use.
- Smooth Street Engagement: Despite the increase in torque capacity, the Brass Plus compound is specifically noted as suitable for aggressive street use — meaning you won't sacrifice the smooth, progressive engagement you need for daily driving or stop-and-go traffic.
- Moderate Track Capability: The 2100 Series is rated for moderate track use, so autocross events, track days, and occasional canyon runs are within its design intent — without needing to jump to a full-race, high-pedal-effort clutch.
- Performance Pressure Plate Included: The kit ships with a Competition Clutch performance pressure plate matched to the disc, so the clamping load and disc material are designed to work together as a system.
- High Torque Sprung Disc: The sprung hub design helps absorb drivetrain shock during engagement, reducing stress on transmission internals — an important consideration for the VQ35DE's 6-speed manual gearbox.
- Complete Kit — Everything You Need: Includes all components required for installation (see What's in the Box below), reducing the need to source additional parts separately.
Specifications
- Brand: Competition Clutch
- Part Number / MPN: 6072-2100
- SKU: COMP6072-2100
- UPC: 887753964120
- Series: Stage 2 – Street Series 2100
- Friction Material: Brass Plus (alloy-backed / Steelback)
- Disc Type: High torque sprung disc with anti-burst steel-backed Brass Plus facings
- Input Spline Quantity: 24
- Application Engine: Nissan VQ35DE
- Torque Capacity Increase: Up to 80% over stock
Fitment
The Competition Clutch 6072-2100 is designed specifically for vehicles equipped with the Nissan VQ35DE engine. Confirmed fitment includes:
- 2003–2006 Infiniti G35 – Base
- 2007 Infiniti G35 – Sport
- 2004–2006 Infiniti G35 X
- 2003–2006 Nissan 350Z – Base, Enthusiast, Touring, Track
- 2003–2005 Nissan 350Z – Performance
- 2005–2006 Nissan 350Z – Grand Touring
- 2005 Nissan 350Z – 35th Anniversary Edition
Important: This kit is specific to the VQ35DE engine. Vehicles equipped with the later VQ35HR or VQ37VHR engines (found in the 370Z and later G37/Q60 models) require a different part number (6073-2100). If you are unsure which engine your vehicle has, contact us before ordering and we'll help you confirm the correct fitment.
What's in the Box
- Competition Clutch performance pressure plate
- High torque sprung disc with anti-burst steel-backed Brass Plus facings
- Throw out bearing (where applicable)
- Pilot bearing/bushing (where applicable)
- Clutch alignment tool
Why Buy from ThreePiece.us
- Free Shipping on Every Order: No minimum required — your Competition Clutch kit ships free, no matter the order size.
- Affirm Financing Available: Spread the cost of your clutch upgrade over time with flexible financing through Affirm at checkout.
- Expert Fitment Support: Not sure if this is the right stage for your build, or whether the VQ35DE kit fits your specific year and trim? Our team is here to help you confirm compatibility before you buy — saving you the hassle of a return.
Frequently Asked Questions
- Does this clutch kit fit the Infiniti G35 Coupe and Sedan, or only one body style?
- The 6072-2100 fitment list covers both Infiniti G35 Base (2003–2006) and G35 X (2004–2006) as well as G35 Sport (2007), regardless of body style, as long as the vehicle is equipped with the VQ35DE engine and a manual transmission. If you're unsure, reach out and we can confirm your specific car.
- Will this kit work on my Nissan 370Z or Infiniti G37?
- No — the 6072-2100 is designed for the VQ35DE engine only. The 370Z and G37 use different engines (VQ37VHR or VQ35HR) and require a separate Competition Clutch kit. Using the wrong kit on a different engine is not supported and could result in fitment problems.
- Is this a complete kit or do I need to buy a flywheel separately?
- The 6072-2100 kit includes a performance pressure plate, sprung friction disc, throw out bearing (where applicable), pilot bearing/bushing (where applicable), and an alignment tool. A flywheel is not listed as an included component, so you will either reuse your existing flywheel or source one separately. Resurfacing the flywheel at the time of clutch installation is generally recommended best practice.
- Is Stage 2 the right choice for my street-driven 350Z?
- Competition Clutch describes the Stage 2 – Street Series 2100 as suited for aggressive street use and moderate track use, with up to 80% more torque capacity than stock and smooth engagement characteristics. It is a strong choice for modified VQ35DE builds that have exceeded the factory clutch's limits but still want a livable daily driver pedal feel. If your car is primarily stock or lightly modified, a Stage 1 may be worth considering; if you're running heavy power modifications or dedicated track duty, a higher stage may be appropriate.
Price Match Guarantee 
Free Mount & Balance
Free Shipping
IN STOCK (9 wheels)
