The title says it all.........doesn't have to be NIB, just in very good condition.

Thanks,
Jim

Thanks!

Try Karl Mueller in Canada first?  kgmueller@rogers.com   I'm not sure where I got Karl's contact info, or what part of Canada he's in, but know he's an R/C bloke. 

Some years ago, I asked Randy Smith if he had a side/rear header for a Magnum XL .53, but he didn't...only the Magnum XLS .36 that the late Phil Granderson used. FWIW, the Magnum .53 and ST G.51 have nearly identical muffler bolt pattern...close enough with 4-40 screws.    Steve

Karl hasn't been making headers for quite some time.  Karl's health was failing him way back in 2010.  His daughter put out word that she was placing him a nursing home.  Info in the thread below.

https://www.flyinggiants.com/forums/showthread.php?t=53419#post1141360

Looking at the WestonUK website, it looks like the 39mm bolt spacing is going to fit the ST G.51, based on my quick dial caliper measuring...but check it yourself. I got 1.530"-ish. You might also mention that it has to fit a ST G.51, but as a lot of engines these days are designed in metric, a lot of engine 'family' dimensions are pretty similar because of that. 

The 'drop' is the amount you want the pipe centerline to be below the exhaust port center (inverted installation assumed). I have only ordered one header from Randy Smith, and IIRC, he may only have stocked one 'drop'. And I don't remember what that number is/was, but I'd bet that somebody does.

The prices from WestonUK seem like they're very proud of their stuff, but then they may be including VAT, which would be deleted for a sale to the USA, so be sure to ask. Exact rate varies with goods/services, but base rate is 20%, so getting that removed makes it a lot more reasonable.    Steve

Don't know if this helps but, Macc Mufflers made some wrap around pipes for different enignes.

MM