
01-09-2011, 09:36 PM
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Senior Club Cobra Member
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Join Date: Jul 2001
Location: Carrollton,
TX
Cobra Make, Engine: JBL now SOLD
Posts: 1,735
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Not Ranked
Unfortunately I dont have any before and after numbers, and I made the change in the mufflers without even running the first set, which had a smaller diameter inside. But others have seen some significant improvements which is why I chose them in the first place. Changing them out is an easy 20 minute job for an experienced welder. Then you can have them coated however you wish.
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6th generation Texan....
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