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Full Exhaust or replace muffler?
New user here. 2015 Yukon Denali. I just replaced my stock muffler with the 18” magnaflow 12259 and I could not be happier with it. I’ve had the vehicle since 2014, and I feel foolish for not doing this from the first day. As the previous user above mentioned, a cat back isn’t going to free up...- 2bgoodtoday
- Post #5
- Forum: Engine & Drivetrain
