My ATS has held up to alot. Edge(gauges only)..Smarty(#9,with all settings on 4)..MP-8(25 to 50%) I run the truck very hard, powerbreaking, 4x4 boostlaunch's and a little bit of trailer towing. Not shure how they back there warranty and I hope to never find out. Good luck on ur decision.
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07.5 3500 Mega Cab 4x4 DRW, 3:73 gearing, ATS 68RFE Tranny W/ ATS 5 Disc Torque Converter, TS MP-8, Fuel Rail Shimmed, Edge Att W/ Hot Unlock, FASS Fuel Pump, AFE Mega Cannon Air Intake, EGR Unpluged, Fleece Turbo Controller,BADP 5'' Stainless Turbo Back,Smarty S-67ME
08 2500 Quad Cab 4X4 SRW, 3:73 gearing, G56 6 Speed, EGR Unplugged, PPE Xcelerator, Mp-8, AFE Mega Cannon Air Intake, BADP 5" Stainless Turbo Back