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after market mufflers

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My 2003 Carrera 4 Cab with Triptonic Tx will require new mufflers within the year. The bottom seams are showing some minimal corrosion. I get the feeling that the mufflers for my car may be different than those for a coupe, manual Tx or RWD.

I would appreciate the part number for the mufflers for my specific vehicle. Obviously I can't get to them with the mufflers in situ in the car.

As well I've been looking at SS Agency Power AP-996-170 replacements. Any comments would be greatly appreciated.


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Only C4S has a different muffler.

Stick with MY2002 or newer C2 or C4 and you should be fine.


996 111 131 69 Right Muffler -- US MSRP $1449.62

996 111 132 69 Left Muffler -- US MSRP $1654.51 (I do not know why they are different prices - odd though)


I would be very careful with aftermarket mufflers - many reports of terrible dronning caused by resonance.

Ask around and drive or ride in a car with the 3rd party muffler first - that's my recommendation.

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