In my experience, you'll feel the difference as well as notice the .1 or .2 in ET. I've never been a fan of Flow-tech, even my MACs made a better improvement than the Flow-techs I ran before. Hooker Super Comps should have a tuned length and not have the pinched tube where it meets the flange (assuming yours are like the Flow-techs I had).
Hope that helps.
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2002 Windsor Weekend
Q16 Qualifier
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