Quote:
Originally Posted by flinchy
Performance muffler is good for maybe 1-3hp, it's still fairly restrictive. Just makes noise bleh. A full cat back or cat back with 2nd cat del would be easy 10-15hp, headers cat del would be the same
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i have sec cats out, it is under 10 HP, i feel more gains in low end and the previous owners dyno showed it. as well.
the intake actually add close to 10 hp. mainly because charcoal filter is restrictive in our intakes.