Note on Fitment

In September 2021, we introduced an upgraded sealing design featuring an improved o-ring groove and our X-Ring gasket. This update makes installation easier and provides better crush conformity and sealing under boost.

To ensure continued support for legacy hot side charge tubes, we still offer the original o-ring design. The new x-ring will not fit the original o-ring groove. 

Hot side charge tubes built before September 2021: shipped with a standard O-Ring

Hot side charge tubes built after September 2021: shipped with our X-Ring seal

This listing is for a replacement seal only. Please verify which seal style your charge tube requires before ordering.

If you’re unsure which seal you need - or which year your kit shipped - feel free to call or email us with your order number or a photo of the tube end, and we’ll confirm the correct gasket for you.