Quote:
Originally Posted by bkngo
Cool...but why does it rasp. I thought that FI stated that their cbe and tp combo does not rasp at all.
|
Meh. You'll always get rasp from test pipes. It's well documented throughout this forum. You need HFCs if you want the rasp nearly gone. RTPs aren't enough.
The answer to your question as to "why." I'll let someone that knows that specific answer tell you but we all know they do it and that's typically enough.
Btw, RHFCs are the best for an NA car where you absolutely want zero rasp but still want the best flow along with the benefits of keeping your torque figures. TPs on this car result in a net loss of low end power. You need that back pressure for something!