I have these headers along with there high flow cats. I really like the set up, saved a little weight, gained some hp, and my car doesn't smell like eggs! They are not PPE level, but they do produce noticabe gains. I have posted my two dyno sheets on my build thread for my turbo if you would like to see. I made 323 and 253 give or take 5 (I'm tired). I also had a lot of bolt on mods, Just a heads up.
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