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Pontiac Bonneville Magnaflow Exhaust, Mufflers & Tips

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Latest Customer Reviews

Magnaflow Y-Pipes Reviews


Very Pleased Customer

Reviewed By Carnell J (Atlanta, GA) Reviewed for a 2003 Pontiac Bonneville —9/20/2008 8:59 AM

I was very pleased with this piece; not because it wasn't an expensive piece, but how it was put together and how good the flow design split off into two. I recommend this product to any and all who are building an dual setup.

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Magnaflow Performance Mufflers Reviews


Magnaflow 12579

Reviewed By Jeff T (Des Moines, IA) Reviewed for a 1999 Dodge Dakota —6/20/2017 3:20 AM

The 12579 is a large case single inlet, single outlet muffler. Internally the exhaust is split running the length of the case rejoining before exiting. The muffler has a nice quiet rumble at idle with no drone at speed. It has a nice performance sound when the throttle blades are opened wide. Install consists of headers, 2 1/4" to 3" Y-pipe, 3" through remainder.

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Magnaflow XL Turbo Mufflers Reviews


Now my truck sounds like a truck

Reviewed By Robert O (Apple Valley, CA) Reviewed for a 2014 GMC Sierra —6/9/2017 1:07 AM

The only mufflers I buy are these... Mellow at Idle but you when you cut her lose these mags sound amazing, not like those beer can mufflers from Santa Rosa Ca

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