Rebuilding an oem muffler to produce same effects as an aftermarket?

[Silage]

I have just bought a new GS1200ss muffler ($1.50 from TM :yes:).

I am wondering if the guts of it can be rebuilt to give the benefits that can be got from an aftermarket (sound, power). It ought to be cheaper as the shell and pipe will fit without having to be built, saving materials and time. Secondly it might attract less "attention" from the sound police as it is "original"

[CookMySock]

I thought the same, but by the time I got it apart it was ; a.) fucked, and b.) no way in hell it was modifiable. That was a hyo 650 one.

Good luck!

Steve

[R6_kid]

Post up some pics. I know a lot of bikes are known to be able to have the exhaust modified to be a bit better flowing and also to release some extra noise from the motor. This is quite common on Ducati's, R1's and R6's. If you can drill out the rivets at each end you should be in business. Usually it'll require that you completely gut out the inside then you'll have to get some perforated pipe of the right diameter and then find a way to attach this (weld?) and then repack the canister before re-riveting the end caps with blind rivets.

The process becomes difficult when the muffler is actually made up of three chambers with bridging pipes, but if you know someone with the right tools it shouldn't be a problem. Though at $1.50 you can't be that worried screwing it up.

[The Pastor]

if you take it to an exhaust guy he should be able to tell you, and at no material cost it'll be cheap as

[T.W.R]

The internals of the GS muffler are pretty complexed :yes:

There's a specialist welder halfway down Wells Street that could be worth asking to do the job. He does a lot of restoration work etc for classics and the such like.

you'll have to tinker with the intake side of things too otherwise there wont be much benefit from the pipe alone

[CookMySock]

It would be cool if exhaust parts like perforated tube, outer tube, and end caps were cheaply available.

I'm tempted to make some rollers to roll tapered reverse megaphones too.. that'd be fun.

Steve