HiFlow Exhaust Manifold Crosspipe

This GrimmSpeed HiFlow Exhaust Manifold Crosspipe fits the 2002-2005 WRX / 2008-2014 WRX / 2004-2014 STI / 2005-2006 LGT. 50% of your exhaust gasses are passing through this tiny tiny pipe and that is not good. So this HiFlow Exhaust Manifold Crosspipe is the solution for this problem.

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