GrimmSpeed Hi-Flow Exhaust Manifold Crosspipe for Subaru WRX/STi/LGT
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3 Layer Flex Joint for Ultimate Durability!

Whats 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 to the Grimmspeed Version 2 Subaru Exhaust Manifold HiFlow Crossover. They've decided to step it up a notch with this first revision of the crossover. Meet HiFlow Crossover V2. Immaculate welds, smooth as butter 2" stainless steel, thick 12mm stainless flanges.

Customers have seen up to 15 HP INCREASE when combined with the GS PnP Subaru Exhaust Manifold. This unit is built from 2" 304 Stainless Steel throughout, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response. This unit has a flex in the center to allow for easier installation.

Add on Grimmspeed's amazing Ceramic Heat Coating for a small fee to help keep the heat in and speed up those exhaust gasses even more.

• Boost transition is improved over stock
• Helps airflow in the mid to high rpm range.

Applications:
02-05 WRX
08+ WRX
04-07 STi
04-07 LGT
04-07 Baja T
91-94 Legacy Turbo
04-07 Baja Turbo

Will NOT fit 06-07 WRX or 04-07 FXT!