Spec 03-06 Nissan 350z Super Twin Organic Trim Clutch Kit
A turbo or supercharged VQ35DE in a 2003-2006 Nissan 350Z will chew through a single disc clutch fast. If your Z flares rpm in third gear under boost, the pedal engagement point keeps creeping higher, or the car smells like hot friction after a pull, SPEC SN35SST-O is the Super Twin in SPEC's Organic Trim, a twin disc clutch built for high power early 350Z and Infiniti G35 builds. SPEC rates this assembly at 847 ft-lb of torque, which is far more than any naturally aspirated VQ will ever produce.
A single disc clutch can only hold as much torque as its one friction disc and clamp load allow. The Super Twin splits the job across two discs stacked between the flywheel and the pressure plate, so it doubles the friction surface without needing a larger diameter or a brutal pedal. SPEC markets the Super Twin line for street and track cars making extreme power and describes it as giving near-stock drivability, very long life, a bolt-in install with no shimming or setup, and maintenance free operation.
The Organic Trim friction is the softest engaging choice in the Super Twin family. Organic material picks up smoothly from a stop, which is what you want if the car still sees traffic and parking lots. SPEC lists the SN35SST-O at 34 lb. If you are torn between a twin and a strong single disc, compare it with the SPEC SN353 Stage 3 single disc kit and the more track focused SPEC SN35PT Mini Twin, and read our twin disc vs single disc breakdown.
Clutch slip is easy to verify. In third or fourth gear at around 2,500 rpm, go to full throttle and watch the tachometer. If rpm jumps faster than road speed, the clutch is slipping. Before you blame the clutch for poor disengagement or grinding, bleed the hydraulics and check the master and slave cylinders for leaks, because a soft system will feel like a worn clutch. Our clutch slipping guide walks through the checks, and our manual repair cost guide helps you budget the job.
SPEC lists SN35SST-O for the Nissan 350Z from 2003 through 2006 and the Infiniti G35 from 2003 through 2006, both with the VQ35DE and a six speed manual. These years cover both the early manual gearbox and the updated CD009 that Nissan phased in on some 2005 and later cars, so tell us which one you have. The 2007 and later 350Z with the VQ35HR is not covered by this part number. If you are not sure, send us the year and VIN and we will confirm before it ships. For automatic cars, this kit does not apply; see our RE5R05A service guide instead.
A twin disc will make more mechanical noise at idle and with the pedal in than a factory clutch. That is normal for this style of assembly, not a defect.
| Brand | SPEC |
| Part number | SN35SST-O |
| Fits | Spec 03-06 Nissan 350z Super Twin Organic Trim Clutch Kit |
| Vehicle fitment | Nissan 350Z (2003-2006) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. SPEC lists this part for 2003-2006 350Z and G35 cars with the VQ35DE. The 2007 and later VQ35HR cars need a different part number.
SPEC rates the SN35SST-O at 847 ft-lb of torque. That leaves a wide margin for turbo and supercharged VQ35DE builds.
It is the smoothest engaging trim in the Super Twin line, and SPEC designs the Super Twin for near-stock drivability. Expect some extra driveline noise compared with a stock clutch.
SPEC lists 2003-2006 Infiniti G35 manual cars alongside the 350Z. Send us the year and VIN and we will confirm it matches your car.
Replace the pilot bearing, check the release bearing and fork, and flush and bleed the clutch hydraulics with fresh fluid. Use an alignment tool when you bolt it up.
