The turbo to o2 housing seal is absolutely critical on Evo models. This gasket is known to create leaking issues that can be a bear to track down and a big annoyance! Do yourself a favor and get a super thick metal gasket that has a beefy firering and plenty of layers to seal even the most stubborn of surfaces. Our gasket will surely seal any issue you may have providing you with long lasting results!

GrimmSpeed™ Product Warranty