I have the O/R X-Pipe and the catback. After speaking with AED, they claim around a 20rwhp loss due to it being restricted. This was tested on their dyno.
Anyone else have any clues on this? I understand it goes from 3 inch to 2 1/4, but why would SW do this and restrict the air flow and cut HP?
Anyone else have any clues on this? I understand it goes from 3 inch to 2 1/4, but why would SW do this and restrict the air flow and cut HP?