Quote:
Originally Posted by taranfx
Bit of horsepower? like 3HP? Downpipe is closer to turbos and they spool freely when going catless downpipe hence more gains ~20HP.
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every bit counts
I had a BRZ when they first came out with that damn flat-4 NA...it wasn't a joke when mods would give you 3-5 horsepower...10hp/tq from a single mod was like a godsent
Those were painful days
But for sure without a doubt, removing primary cat is exponentially better value than getting a secondary cat delete if power is the goal.