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Quietest 2.5" Mufflers for 69 GTO?
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07-10-2019, 06:28 PM
Gator67
Ultimate Warrior
Join Date: Jul 2009
Location: North Scottsdale
Posts: 1,640
Recently switched out 14" Race Pros for 21" Dynomax STs. The car is so much more enjoyable to cruise in now, especially on drives longer than 10-15 minutes.
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