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Do Corsa mufflers cause any RPM loss?

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Do Corsa mufflers cause any RPM loss?

Old 05-03-2011, 07:13 AM
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Default Do Corsa mufflers cause any RPM loss?

My plans to modify my Silent Choice to play well with Lightning headers is probably not going to work - there simply is not enough room in there. Plan B would be to go to a full time muffler, muffler tips, or switchable tips.

I have seen a few sets of the Corsa full time muffler tips for sale. Has anyone seen a change in RPM by adding or removing a set of these? Looking at them, I can't see how they would not restrict exhaust flow.

I have also considered the tips that have the corkscrew design. Anyone had experience with these on a HP setup? These are going to be behind a warmed up 489.
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Old 05-03-2011, 08:25 AM
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I called Corsa and was told no power loss at all..

I also removed corsa tips from 7.4s and added straight tips and noticed no diffrence.
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Old 05-03-2011, 10:23 AM
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They have different sizes so make sure you get the right ones for your application (6" and 6.5" can size are the larger ones, I believe). I put a set on my boat that came off a Formula w/ 525EFI's. I noticed no difference in RPM or speed and I am very happy with them.
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