Manley Exhaust Valves 31.5mm Nissan 350Z / Infiniti G35 | 11149-12 vendor_Enkei The spring tension of the

The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance

Reinforced

*NEW FEATURE* This gauge can be set to read narrow band (0-1v) or wideband (0-5v) with the flick of a switch in the back of the gauge

and higher oil consumption

Manley Exhaust Valves 31.5mm Nissan 350Z / Infiniti G35 | 11149-12 vendor_Enkei The spring tension of theManley Performance has been manufacturing the finest stainless steel valves for over 40 years. Manley valves have been the standard of the industry from their inception, a fact that still remains true as they shift their focus and resources to the Sport Compact Market. The Manley Stainless Race Valves feature chrome stems, hard tips, fully machined surfaces and swirl polishing under their heads. These valves are available in both stock and oversized,