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Different header sizes I think Charlie but I could be wrong.Pete
MkIII used just an 'H' pipe crossover, the MkIV/V used the early 'Collostomy Bag' type with the curved internal pipes into the collector.Pete
Did some measuring today. The Le Mans 1000 crossover is approx. 1.5" longer, so it doesn't look like the Le Mans III part will work properly.
Longer at the clamp surface or longer to the very end?
Well, you beat me to it, Charlie. I've BTDT. You need a LM 1000 xover. The other will make the head pipes hit the frame.
So wider as well?
Yep, I know that (bought a LM 1000 new in '86 and cussed the "Collostomy Bag" at every trans. oil change), just wonder what the difference is dimensionally.