GrimmSpeed HiFlow Crosspipe Subaru WRX 2002-2005 / WRX 2008-2014 / STI 2004-2021

Fitment Information:

2002-2005 Subaru WRX

2008-2014 Subaru WRX

2004-2021 Subaru STI

2005-2009 Subaru Legacy GT

Please note: DOES NOT FIT 06-07 WRX.

Features:

The Grimmspeed HiFlow Exhaust Manifold Crosspipe is made of 304 Stainless Steel including the flanges, flex, and tubing, and has a pipe-wall thickness of 14 Gauge unlike other pipes. This is the most heavy-duty pipe you will find in the aftermarket. 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" inch 304 Stainless Steel tubing, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response. The insides of the flanges are cut back to allow the pipe to rest inside the flange which gives you a nice flush mating surface, allowing for optimal flow through the pipe.

This Crosspipe is available in a nice brushed finish, or in the amazing Ceramic Heat Coating which helps keep the heat in and speed up those exhaust gasses even more.

• Finish: Brushed (Uncoated) or Black ceramic coated
• 304 Stainless Steel construction
• 14-Gauge pipe wall thickness
• 1.92" inch piping diameter
• Boost transition is improved over stock
  
• Improves the airflow in the mid to high RPM range
• Heavy Duty GrimmSpeed Gaskets are included
• Flex Joint is "Tuned-Bellow" with Interlocking Liner
• Pipe to Flange Connection: Cut-Back flange allows much smoother connection; Piping is flush with flange so there is no step into the pipe
• Flanges: 1/2" 304 Stainless Steel CNC Milled; All 3 sides are milled for precise tolerances in manufacturing
• 5-8 HP increase
• Sold individually