LM3 and the after Market Header design mystery

[GuzziFuria]

Ciao Tutti,

Always wondered with the LM3 (possibly other T models as well) who came up with this different header design, where the initial bent right out of the cylinder, is of smaller diameter than the OEM...  Personally I prefer the OEM design, to me it flows more with the bike...

Anyone knows??

Molto Grazie
Best
Carlito

Polished aftermarket vs OEM



OEM Header



Aftermarket Header design

[jwinwi]

Those look like BUB headers; they were probably sized and shaped that way based on results from a Dyno. Form follows function? 

[dguzzi]

  I agree,the Bub's for Norton had the same form.

[Groover]

is the crossover high up on the headers?

[GuzziFuria]

is the crossover high up on the headers?

No it has the regular H-pipe which sits under the tranny...
These were made by a company in the UK www.keihan.co.uk, they probably replicated Bub's design...
Keihan also builds a set of Replica Lafranconi Riservato Competition for LM3 #1129, build exactly like the originals but in SS and no RC stampings...




Mistral also build a set of headers with the high crossover keeping the OEM shape like their standard headers...