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Use Coupon Code BOOST5 at Checkout!

Due to high volume of orders, please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

Use Coupon Code BOOST5 at Checkout!

Due to high volume of orders, please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

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Home   /   08-14 STI Exhausts / Headers   /   GrimmSpeeed HiFlow Exhaust Manifold Crosspipe - 2002-2005 WRX / 2008-2014 WRX / 2004-2021 STI

GrimmSpeeed HiFlow Exhaust Manifold Crosspipe - 2002-2005 WRX / 2008-2014 WRX / 2004-2021 STI

SKU: GRM 001001

$230.00

What's one of the most overlooked anti-flowing Subaru pieces you ask?? ...The stock exhaust manifold crossover. 50% of your exhaust gasses are passing through this tiny tiny pipe and that is not good. Well here comes the solution for this problem.

Welcome the GrimmSpeed Version 2 Subaru Exhaust Manifold HiFlow Crossover. Well they've decided to step it up a notch with the first revision of the crossover. Meet HiFlow Crossover v2. Immaculate welds, smooth as butte. . . Show More >


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