[Brian S]

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

 

[gavinfdavies]

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

 

[gromhawk]

Here's what I plan on buying once I figure out the header size.

Discount Steel - Electric Resistance Welded (ERW) Round Steel Tube - Buy Online - Cut to Size - No Minimum Order

 

[HRCNICK11]

Brian I posted lot of specs out of the manual in the FI 101 thread.