Quote:
Originally Posted by GinTonic
+1 to what Soden82 said.
I want to add my 2 cents regarding the Turner Exhaust minus what was discussed in that thread. Valves open or closed, that exhaust has a massive loss of back pressure. Going from OEM to Turner, I thought my head was messing with me but I didn't think much at the time. Last Sunday I installed test pipes, while my Turner exhaust was still installed. There was a slight bump in power but nothing to write about. Monday afternoon, my Supersprint Race exhaust showed up and installed it after work. The bump in mid range torque was significant enough that I though I was in a different car. This was all without a tune.
YMMV, but it would be interesting to see that exhaust on a dyno, catless or not / tune or no tune.
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What you brought up is interesting. I wonder if being supercharged it will change the amount of back pressure from the exhaust. I don’t necessarily want to leave power on the table if that’s the case.