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TR4/4A TR4A dual exhaust specs

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Alex Grant

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Does anybody know the factory dimensions of the dual mufflers that Triumph used at the rear of the TR4A? Such as length ,width ,height. Oval I'm guessing. And if inlets were offset instead of centered and the diameter of the inlet and outlet pipe. Does anybody know of a muffler company such as Walker or AP that offers a muffler that's close to the specs of the originals?
 
Alex, I have them on my TR6, "Y" pipe and all, but I had to bend the "Y" down to clear. The mufflers are a flat oval and I would guess 22 inches long but the rear pipe runs under the rear almost a foot and turns up.
I think Moss sales them but if you need the exact I will get it for you tomorrow, if no ones else chimes in.

Wayne
 
They're 15" oval. Inlet is offset to the outside, outlet is offset to the inside. Both inlet and outlet are 1 5/8" od.
 
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