Hi
I want to quiet down my 94 with Dynomax Ultra Flo SS Exhaust
Thinking about putting my Mac hiflow cats back on and wondering how much HP I would lose???
565 rwhp... changing from a cobra intake with a 65mm T/B to a Systemax with a 75mm T/B hoping to make 600 horses and wondering how much you thought the Mac hiflow exhaust would hurt.
I want to quiet down my 94 with Dynomax Ultra Flo SS Exhaust
Thinking about putting my Mac hiflow cats back on and wondering how much HP I would lose???
565 rwhp... changing from a cobra intake with a 65mm T/B to a Systemax with a 75mm T/B hoping to make 600 horses and wondering how much you thought the Mac hiflow exhaust would hurt.