For the month of September we are having a huge sale. Call us for pricing as our prices are too low to advertise. We carry MBRP, Edge, Diablo, Magnaflow, etc, etc. Thanks!
http://www.wcdieselperformance.com/

As an example, I have 2, T304 Stainless exhaust systems for duramaxes, downpipe back, with double-wall tips. $599 SHIPPED!!!!