Exterior Components› Body Panels and Components
Manley Performance
Manley Gen II Race Series 41.3mm Head Dia 142.2mm Length Severe Duty Exhaust Valve (SINGLE VALVE)
SKU: M004 11229-1
Advanced — 4+ hours
Description
This exhaust valve is part of Manley's Gen II series, engineered for enhanced performance and durability.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Manley Performance |
| Part Number | M004 11229-1 |
Videos
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy