Thread: Headers
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Old 10-03-2012, 01:49 PM   #6
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Join Date: May 2011
Chapter/Region: NESIC
Location: Northeast CT
2011 5 Door STi
Plasma Blue Pearl


Originally Posted by the suicidal eggroll View Post
There was a header shootout a few years ago, where the stock, Grimmspeed ported, and various aftermarket EL and UEL were tested. For the most part, EL and UEL added roughly the same power (about 20whp), and the Grimmspeed ported manifolds and crossover pipe made about half that (about 10whp).

what about torque on EL vs. UEL?
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