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Discussion Starter · #1 ·
Guys'
It would be very helpful if anyone with good solid data & specs would stop in this site and list what they know.
An example: the grom header pipe is 23.5mm. Is that inside or outside dimension, I'm guessing outside
Anyone in Japan or Europe had a cylinder head off, what are the valve sizes?
Someone who has a removed OEM exhaust system could take a bunch of measurements

I just ordered a pile of steel tubing "J" bends, to start making a non cat lower pipe
The prototype will be steel, and the final stainless

Any info that is accurate, I can put into my computer programs, and start to figure out what is really needed.

Help!

Brian S
 

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I'll keep my eyes out for measurements as and when.
 
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