| Yes they will both help, i would consider a PPE,Quadzilla,Diablosport for the tuner and a 4" mbrp turbo-back exhaust. The PPE tuner is capable of the most power and is guaranteed atleast 2mpg better. The quadzilla is what i run and im very pleased with my results. If want some pricing let me know and ill shoot you a pm with some.
Tyler
__________________ Meyer Performance & Fabrication, LLC www.meyerperformance.com Airdog Sale $499 Shipped Quadzilla Sale pm for pricing. DPF Delete Packages: EGR Plate Half off with purchase
07.5 Chevy RCLB Summit White. PPE, 5" MBRP,Cobalt gauges, Banks Intake, Fire & ICE |