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: cutout? Carbon04 04-18-2004, 08:25 PM Has anyone ever used an exhaust cutout on a diesel? Its going to be a while before I get an aftermarket exhaust so I was wondering if I could use a 3 1/2" exhaust cutout before the muffler while I am at the track to give me the straight pipe effect and seal it back up afterwards. Anyone see any problems with doing this besides getting a little soot under the truck. Thanks 1bad01 04-18-2004, 09:16 PM Sounds like a good idea to mehttp://www.dieselplace.com/forum/smileys/Big Smile.gif Mackin 04-19-2004, 06:52 AM I don't believe there will be any great differance not to mention assuming your going to do the cut out with stock exhaust due to the cat .... A 4" system with free flow muffler would be just as benificial IMO ... You could always unbolt at the flange .... Mac Carbon04 04-19-2004, 07:11 AM I don't have a cat , '04 LB7. I am going to do an exhaust system just not right now. The cutout is just an idea until I do so. Edited by: Carbon04 grasshopper 04-19-2004, 09:35 AM exhaust dumps rock had a 5.0L mustabng with some, come to lifein a hurry man, it would definetly work for the diesel!!! Powell 04-19-2004, 09:55 AM I have thought about doing the same also. Would be able to make just as much power as an exhaust system.. well it does on gasoline powered cars (i mean it makes more power then it does through exhaust). grasshopper 04-19-2004, 11:03 AM yeah man, it would be all sleeper like, imagine pullin up to the light, everyone is catagorizing diesel power now by the infamous 5"tip, right? guy see's nothin but a stock lookin truck even exhaust, then bang it comes to life as the dump's open, it would make for allot of upsets!!!!http://www.dieselplace.com/forum/smileys/Big Smile.gif Kennedy 04-19-2004, 02:02 PM It'll make one helluva mess of EVERYTHING under the truck for sure... gmccall 04-19-2004, 02:31 PM I considerd a cutout early on, but added a flowmaster to the stock exaust instead. I never found anyone that claimed an improvement in track times with the added 4" exaust. Maybe with 500- hp numbers. I have seen claims of lower EGT readings of course. Carbon04 04-19-2004, 10:35 PM yea I got to thinking about what kind of mess it would make under the truck (since I'm a neat freak with my stuff) so I went out tonight and bought the MBRP 4" stainless exhaust system. I figured its only money.......its either now or later and I opted for now. www.mbrp.com (http://www.mbrp.com)Edited by: Carbon04 | ||