Exhaust operation and the back pressure myth "Or" Ask Uncle Otto about exhaust
Junior Member
Joined: Feb 2020
Posts: 28
Likes: 2
Look for some more sound out of my truck without losing low-mid range torque. My super 44 flowmaster sounds alright but, i want a deeper louder sound. Thinking of a borla XR1 SI/SO and dual exit before the rear axle. Is this gonna change my powerband? I'm leaving 2 of the cats stock and the rest of the system the stock 2.5 pipe.
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