4" exhaust




4" dump exhaust for stock location O2 housing

4" dump exhaust for stock location O2 housing

BST is proud to release their new 4" all tig welded dump exhaust. This piece goes from the 3" opening on your current O2 housing to a 4" v-band which...

$260.00

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BST 4" Aluminum Side dump exhaust for stock turbo/big turbo

BST 4" Aluminum Side dump exhaust for stock turbo/big turbo

BST 4" aluminum exhaust. Comes with the 3"->4" stainless adapter for any stock location O2 housing (big turbo and stock turbo compatible). Production...

$580.00

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Max: 5