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Picked up my car last night. Headers went on without any fitment issues, ECU was programmed for single use O2 application and Dynos were run. MY max rwhp without these headers was 182.5rwhp. and 199.6rwhp with headers for an increase of 17.1 rwhp. The engine now has a slightly more aggresive exhaust note and it passes the butt dyno test. So far I am quite pleased with these headers. The quality, construction and fitment is on par with any other aftermarket header I have seen and they did have a measurable performance gain. I'll still post some graphs when time permits.
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