Perrin Turbo Manifold Equal Length Subaru (incl. STi, WRX, Forester XT, Legacy GT)


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321 Stainless Tubing; Equal Length Runners for Each Cylinder

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Subaru Forester XT 04-08 Notes; 04-05 Models Require STI-Type Oil Pan; 06-07 Models Require 02-04 WRX Oil Cooler.

Reaching back to lessons learned by tuners in our past, Perrin has grabbed a dramatic power increase that was previously bottled up by the factory manifolds. Whether normally aspirated or turbocharged, proper exhaust gas scavenging is vastly important. The turbocharger relies on energy from the exhaust flow to rotate its blades. By pulling additional energy that was otherwise wasted by the factory manifold we can transfer that to the turbo to decrease spool up times and improve power. Our R&D staff was able to manipulate the length and shape of each runner to allow easy installation and still maintain large power increases.

Constructed from 321 stainless steel and 1/2'' CNC'd flanges the header is designed to withstand the most punishing levels of heat your engine can dish out. Fits all 2002-2007 models. (2006+ WRX models require mods to the oil filter assembly.)

Installation Guides and Links

Installation Guide
Describes how to install Perrin's header on Subaru (incl. STi, WRX, Forester XT, Legacy GT)



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Perrin Turbo Manifold Equal Length
321 Stainless Tubing; Equal Length Runners for Each Cylinder
Subaru (incl. STi, WRX, Forester XT, Legacy GT)
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