Rusty McNeil
Well-Known Member
Before I buy the UFO pipe I want to gut the insides of the fatory mufflers any advice?
Nothing to lose doing it. Stock exhaust ain't worth much for resale anyway. I did mine years ago, actually sounded pretty good, definitely loud. Most defintely did not lose any performance by doing it. The muffler itself is very restrictive with a lot of chambers and passages, the length of passage inside the muffler from entrance to exit is probably twice or three times the length of the can itself. You wouldn't believe the amount of shit inside that can. I won't say it made any more power, but it for sure didn't hurt performance.
Drill a bunch of holes around the outside edges of the outlet and then use a jig saw to cut around that connecting the holes together. After that it's just a matter of using drift pins and crow bars to work all that crap out of there. There's also some stuff way down in there you can use a 2' long drill bit and just keep punching holes in it till there is basically nothing left.
When your done use a file or a die grinder to clean it up and touch up the edges with black paint. The finshed job comes out looking clean and not butchered at all if you take your time and do it right. If your getting another exhaust later why not? it can't hurt, it'll sound good to you for a while till you decide what exhaust you really want. And yes, the main pipes and the collector box/garabge can on the stock system is a big holdup on performance, plus it's REALLY heavy, I don't remember exactly but I think the weight loss by ditching the stock exhaust was something on the order of 20-23lbs
BTW, I have a UFO 4-2, the original version in stainless with 14" aluminum cans and it sounds excellent and is as good as quality as "Marks". I love it! The latest slash cuts he makes are also very good quality, but yes they are extremely loud. the mufflers are basically non-repackable glass pack, although they won't have glass in them they will have metal stuffing.
But if I was buying a new system and paying full price I would go with Marks, UFO can be difficult to deal with at times for some people, although I have never had an issue with him others have...