I have an old but new-in-the-box side exhaust R/C X25 I'd love to use but it needs a muffler. It appears the muffler bolts are a little less than 3mm. 2.6mm? The mounting hole spacing looks like 30mm center-to-center.

I can't find a listing on Tower's website of anything that would fit, although some of the header pipes and mufflers don't have the measurements in the tech notes.

Do you know of any currently available muffler or tuned-pipe header that will fit this fine little engine?

Thanks,
Bob Scott

We're sorry, but that engine was likely well out of production when we became the SuperTigre service center about two decades ago. We don't have any information whatsoever on the muffler bolt sizes. Likely, though, they are M2.5 with a standard thread for M2.5 bolts. We'd not know of a current muffler that would bolt right on. One of the .25-size clamp-on mufflers should work, though.