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LT1 open header question

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Old 10-14-2006, 08:18 PM
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Default LT1 open header question

How much will running open headers (uncapped) on my LT1 help my ET/MPH?
I have longtubes.

* I gained 00.10 (a tenth) after I removed the cat and another 00.10 after I opened my cutout. I still have the stock catback and muffler. I noticed that my muffler was hot after I made a pass, so some exhaust must still be flowing through. I'm sure I would gain something just because of the weight gain.
Thanks, Mike

Old 10-15-2006, 01:36 AM
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probably will net you about .2 off your et
Old 10-15-2006, 02:30 AM
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Well I ran .43 better with open headers VS stock manifolds/ypipe

Its worth it.

Tony.




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