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Pontiac G8 Performance Mufflers

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Latest Customer Reviews

Magnaflow XL Turbo Mufflers Reviews


Pontiac G8 V6

Reviewed By Joshua M (TOLEDO, OH) Reviewed for a 2009 Pontiac G8 —9/21/2017 7:39 PM

Installed these on my Pontiac G8. The exterior sound is a nice rumble. not too loud, not too quiet.The interior noise "drone" is rather noticable but not too terrible and has a little vibration to it. Again, not terrible. Nothing a little sound dampener cant fix.

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Nice sound

Reviewed By Nicholas W (Jackson, MS) Reviewed for a 2009 Pontiac G8 —5/23/2015 12:04 AM

These mufflers give an aggressive deep rich sound as promised..... glad i purchased these mufflers.

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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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