GrimmSpeed Exhaust Manifold Crosspipe Subaru STi 04-13, WRX 02-05 / 08-13, Legacy GT


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5-8hp Gain; 1/2in Thick Flanges; 14 GaugeTubing; Triple Layer Flex Joint

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Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50% of your exhaust gasses are passing through this tiny pipe and, well, that's just a problem. Do not worry though, GrimmSpeed has a solution for you!

The entire HiFlow Crosspipe is made of 304 SS(flanges, flex, tubing) and has a pipe-wall thickness of 14 Gauge, this is the most ''heavy-duty'' pipe you will find. Many other pipes use cheap thin steel and are marketed as ''super light weight'', not GrimmSpeed. The one of a kind Triple Layer Flex Joint is not located in the bend, which adds to the life expectancy of the flex section. This unit is built from 1.92'' 304 Stainless Steel tubing, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response.

Customers have seen up to 15hp increase when combined with our PnP Subaru Exhaust Manifold. The pipe by itself should net around 5-8hp increase.



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GrimmSpeed Exhaust Manifold Crosspipe
5-8hp Gain; 1/2in Thick Flanges; 14 GaugeTubing; Triple Layer Flex Joint
Subaru STi 04-13, WRX 02-05 / 08-13, Legacy GT
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