Well done on that acquisition. They don't come up in that condition very often. I put in the initial bid but didn't bid further because of what I'm about to say.
Immediately after bidding I noted another Cooper S muffler for sale on eBay with a buy it now price. The item was described as a genuine original Australian factory Cooper S muffler with very little use. It still had the BMC part number HYL4220 written on it. After buying it I discovered the seller was Graeme Urch, proprieter of City Leyland here in Melbourne back in the 1970's and 80's and long term custodian of the magnificent BMC Works Cooper S LRX828E. City Leyland provided spare parts and vehicle servicing and for many years worked hand-in-hand with the Mini World car sales business located next door. Graeme took the muffler from his stock and fitted it to LRX828E to enable road registration while waiting for the correct exhaust system to arrive from the UK. So my "new" muffler has BMC Works heritage, or more accurately has had a "brief encounter" with a genuine Works car.
I've yet to take delivery but the following pics were with the eBay advert.
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Muffler 1.jpg
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Muffler 3.jpg
mini210 - Suggest we get together to compare the two mufflers to see the differences. It's possible Lukey made the mufflers for BMC, in which case the only difference would be the Lukey name embossed on yours which would probably make it an aftermarket item.
This pic of Graeme next to his famous rally car was taken at the recent VMCI Mini Show.
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Graeme Urch and LRX828E.jpg