Will this increase my backpressure at all? I've seen one once and it looked pretty cool. About 8" long, and a nice straight shot, but I don't remember what the louvers looked like, really small if any I'm sure. Does anyone have one? Is this even enough to make a differnece? I'm thinking, with this, and a 4" tip, I'll keep my straight pipe sound as close as possible. TIA!!!

-AR

 

That's the one I was talking about in your other post that you also talk about the FIPK. I don't have any first hand experience with this one. I'm sure it's main focus is still high flow for high end output.