| :where a B&B outdid a HKS, much less back to back. You sooooo know that the HKS is better designed:) To me its such a physics 101 I don't even feel the need to see a dyno. The only pic of B&B I can find:
 Lebree Exhaust...Hiper is similar but not as straight as this:
 Which one do you think flows the air out faster? Lebree himself(old guy) runs this exhaust because its that much noticeable in seat of the pants.
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