We have been hard at work this new year figuring out what works and doesnt work exhaust wise on F150's Eco Boost trucks. We Installed & Dyno'd 2 Different Exhaust Systems on F150 Eco Boost. Over all very good gains from both combinations. Combo 1 is MBRP 3 inch cat back with resonator and off road down pipe. VIDEO OF TURBO WHISTLE Ford 2013 F150 Eco Boost w 3" mbrp & 3" off road down pipe turbo whistle - YouTube Combo 2 is Stainless Works Cat back and Downpipe with Cats VIDEO CRUISE AND WOT Stainless Works F150 Eco Boost downpipe & cat back S muffler WOT - YouTube
i bet you could have gotten 390hp if you removed the gloves from the leaf seriously though, thats some nice numbers there. all on 87 :winning: