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Cadillac DeVille Performance Mufflers

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Latest Customer Reviews

Magnaflow Performance Mufflers Reviews


sound great

Reviewed By JOHN D (CARLISLE, PA) Reviewed for a 1967 Cadillac DeVille —5/11/2016 4:43 AM

Custom made a dual exhaust on a '67 Caddy. These sound great

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Flowmaster Super 40 Series Mufflers Reviews


super duper 40 series

Reviewed By ryan r (Clare, MI) Reviewed for a 1966 Cadillac DeVille —8/2/2007 8:52 AM

this muffler sounds awsmome on my 66 cadillac, nice rumble at an idle, music to my ears during smokey old tire burnouts.

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Flowmaster Original 40 Series Mufflers Reviews


2016 GMC Sierra

Reviewed By Chris N (Las Cruces, NM) Reviewed for a 2016 GMC Sierra —6/13/2018 7:53 AM

I installed this by removing everything from the stock muffler back. Installed the series 40 exactly where the original muffler was and had exit pipe turn out just in front of the rear tire. Unless you were in the throttle really hard, you couldnt tell if it was a V8 or the V6.

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