Quote:
Originally Posted by why?
low end torque on a na car is 100% about back pressure. This is the exact opposite of what you want for high end performance. Down at 2000 rpm or so the car makes very little actual torque, so every little bit helps. The second you increase pipe diameter of any part of the exhaust the low end torque will suffer.
As was said though, just rev it a little higher and it will be fine.
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As the flanges were not originally level and therefore not sealing properly, a leak could really compromise back pressure. I leveled them but found that I needed to re-level the flange on the muffler section. I think I ran out of patience as it is a really tedious job. I'm curious to reinstall the Perrin and see how it compares with the stock unit. This whole thing started in response to the sound from the Perrin not being consistent and that the V band clamps needed periodic re tightening. That is when I found out that the flanges were not level. The one on the muffler most of all.