HasAnMTBProblem Posted February 27, 2017 Report Posted February 27, 2017 Hi, sorry if this has been done before, but my searches couldn't find much info about performance gains per exhaust manufacturer/configuration. I can find tons of info/videos for the sound each one makes, but next to nothing about actual HP numbers. So, if it's not too much trouble, could people chime in with documented or measured HP increases for any exhaust system they are aware of? Keep the list to cat-back, DP, or turbo-back systems (not just mufflers) that do not require ECU program. Second cat delete allowed. I've started a list of system I'm aware of. Please add any not already listed. I'll start. The only numbers I've seen are... NM Cat-Back = 12-15HP (crank or WHP not specified) Source: NM Engineering Milltek SSXM402 = 10-12% HP increase (crank or WHP not specified) Source: M7 Speed Borla = Magnaflow = VIP DP Series = VIP AB Series = Megan = Scorpion = Quicksilver = "Big Pig" - KW V3 Coilovers - Hotchkis rear control arms - Milltek cat back exhaust with black MBRP tips - Flat black vinyl wrapped head/tail light rights - ECS Black Line Tail Lights - Outmotoring Smoked Side Markers - Outmotoring Smoked Scuttle Turn Signals - Joey Mod Head lights - Outmotoring LED Driving Lights - Enkei T6S 18x8 et42 Wheels - Continental ExtremeContact Sport 235/40R18
