Quote:
Originally Posted by bto131
I got the gmpp axel back system when I first got the car in 2011. I was thinking of upgrading the rest of the exhaust system now.. Would upgrading from the cat back to the axels be worth it?
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Good question . I was wondering the same thing. Borla sells just the XPIPE (Catback) to the axle to make it a full catback system for those of us with the GMPP axleback.