What up everyone. Was wondering if anyone can recomend or know which will be best. I'm thinking of stepping up my exhaust system. I want to get the Borla catback bolton system. I just noticed GM makes a high performance for my truck. Same catback bolt on system. Should I stick to getting Borla or is their something else better out there. I am looking for mor HP, Dual behind each rear tire. '07 Ext. Sierra.

 

Borla is nice... If you go to a muffler shop, they can build and install a nice fabricated system for a lot less...

 

Yeah go to a local muffler shop. I am getting exhaust this week for like $200. I am doing the same setup you see on Ford Lightnings where the exhaust dumps out in front of the back right tire with twin chrome tips with the new Super 44 Flowmaster muffler.