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| Perrin Performance 02-09 WRX & 04-09 STi Equal Length Header |
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The Perrin Performance Equal Length Subaru 02-09 WRX & 04-09 STi Header has quickly become one of the most popular Subaru aftermarket header choices due to proven power gains of up to 30 wheel horsepower and 30lbs of torque on a slightly modified STi! The Perrin manifold is a true equal-length WRX & STi header constructed of 304SS. The Perrin Performance WRX & STi header is designed to make large power gains without sacrificing low-end power. Flanged for a stock uppipe, the Perrin header is compatible with stock-location uppipes, including those included with rotated-mount turbo kits, making the Perrin manifold an excellent choice for big-turbo Subarus. |
The Perrin Performance equal-length header is designed for the 2.5 liter 04-09 STi, 2006-09 WRX, and 05-08 Legacy GT, but it will fit the 02-05 WRX with the purchase of a 2.5L oil pan. If you are looking for huge power gains, this is the header for you.
Shipping costs are calculated upon checkout
DYNO CHARTS:
Before & After 05 Legacy GT (Perrin TMIC, Uppipe, Turboback). Only header was changed b/w runs.
Before & After STi w/ Turboback & Reflash. Header changed between runs w/ no retune.
Before & After STi w/ GT3582R Turbo Kit, 21Psi. Only header changed between runs.
Boost response and AFR of same GT3582R STi @ 21 PSi.
NOTES:
1. Will fit 02-05 WRX w/ the purchase of an STi oil pan (sold separately).
2. Wrapping this header w/ exhaust wrap will void Perrin's warranty on this product.
FITMENT: 2004-2009 STi, 2006-2009 WRX 2.5L
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| Perrin Equal Length Header |
PSP-EXT-050 |
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Subaru Factory 2.5L Oil Pan: |
This is an OEM Subaru 2.5L oil pan, required to fit a Perrin Header on a 2002-2005 WRX. The 2.5L oil pan allows for clearance of the crossover pipe on the Perrin header. This is the stock oil pan on all 04-09 STi and 06-09 WRX models.
Shipping costs are calculated upon checkout
Part #: 11109AA131
MSRP: $143
Our Price: $95
Inventory: Usually ships in 2 days
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