That assessment there makes me think that running a Dynamite 007HT pipe on a 5-port may not be a good idea. I mean is it bad to run a low end pipe on a low end engine? Or is that actually a good thing? Our track is fairly short, the 5-port even tuned down would have plenty of go on our main straight. The three pipes I own right now are the 007HT (low/high torque), TT 2053 (mid), and a JP-3. I'm not against buying another pipe if needed, I want to make sure I get max tuning out of my new 5-port, but all out power isn't necessary.