The ACT 600215 XACT Streetlite flywheel is built for the shared VQ35 platform used in the 2003-2006 Infiniti G35 and Nissan 350Z, delivering noticeably improved engine response and acceleration with OE-to-mild gear rattle. Heat-treated forging provides strength and toughness, while induction-hardened ring gear teeth maximize service life. The one-piece construction reduces potential failure points and provides uniform, efficient heat transfer away from the clutch disc, eliminating the warped inserts or loose ring gears seen on multi-piece flywheels. It is forged, CNC-machined, and dynamically computer-balanced for smooth high-RPM reliability and is recommended for both street and race use.
WarrantyInstallation Instructions
Specifications:
- Construction: Heat-treated forged steel, one-piece design
- Ring Gear: Induction-hardened for maximum life
- Balancing: CNC-machined and dynamically computer-balanced
- Engagement: Noticeably improved response, OE to mild gear rattle
- Recommended Use: Street and race use
Vehicle Applications:
- 2003 INFINITI G35 Base
- 2003 Nissan 350Z Base
- 2003 Nissan 350Z Enthusiast
- 2003 Nissan 350Z Performance
- 2003 Nissan 350Z Touring
- 2003 Nissan 350Z Track
- 2004 INFINITI G35 Base
- 2004 Nissan 350Z Base
- 2004 Nissan 350Z Enthusiast
- 2004 Nissan 350Z Performance
- 2004 Nissan 350Z Touring
- 2004 Nissan 350Z Track
- 2005 INFINITI G35 Base
- 2005 Nissan 350Z 35th Anniversary Edition
- 2005 Nissan 350Z Base
- 2005 Nissan 350Z Enthusiast
- 2005 Nissan 350Z Grand Touring
- 2005 Nissan 350Z Performance
- 2005 Nissan 350Z Touring
- 2005 Nissan 350Z Track
- 2006 INFINITI G35 Base
- 2006 Nissan 350Z Base
- 2006 Nissan 350Z Enthusiast
- 2006 Nissan 350Z Grand Touring
- 2006 Nissan 350Z Touring
- 2006 Nissan 350Z Track
FAQ
What is a Streetlite flywheel designed for?
ACT's Streetlite line is a mid-weight lightweight flywheel intended to noticeably sharpen throttle response and acceleration while keeping OE-to-mild gear rattle, making it suitable for street use as well as track days.
Can this flywheel be used for race applications?
Yes, ACT rates the 600215 Streetlite flywheel for both street and race use.
Why is the ring gear induction-hardened?
Induction hardening the ring gear teeth increases wear resistance so the starter ring gear holds up to repeated engagements over the life of the flywheel.
Does this flywheel fit both the Infiniti G35 and Nissan 350Z?
Yes, it covers 2003-2006 Infiniti G35 Base and 2003-2006 Nissan 350Z Base, Enthusiast, Performance, Touring, and Track trims, which share the VQ35 engine and clutch platform. See the Vehicle Applications list above to confirm the exact year and trim.
