I am frequently asked about what after-market exhaust is best for the TTR. The requirement seems to be that it is light, reasonably quiet and sensibly priced.
The problem is that I can't find anyone in the UK selling such exhausts. Has anyone else found one they can recommend?
There seems to be a gap in the market for a lightweight quiet replacement TTR exhaust. The quietest used to be the Oshiro but they don’t seem to be available any more.
I fitted an FMF Q4 to my '94 Raid a year ago and I'm pretty pleased with it. It's certainly quiet enough for road use though I'd prefer something a bit quieter if I still did UK green lanes (you could always go a bit slower, though
Jetting (look on the FMF web site) is pretty much standard. They do recommend a slightly smaller main than I have fitted but I haven't bothered changing it beacuse:
a) Mains seem to vary a lot by model/territory.
b) It seems fine on the 'flat out then roll of a bit' test.