About a week ago Jason told me to look at a 1998 KTM 380 air box I had in inventory.
I pulled it out thinking no way is that going to be even close...
Guess what...

- KX GURU RACING 2016 KTM 250SXF KX500 CONVERSION 165.jpg (277.3 KiB) Viewed 10056 times
Another builder, Jan Pettersson, gave me this info...
Nice, I think I going more straight, The shock is more at right side in frame and can be avoided more easy, intakeboot from 1986-kx500 and airboot from ktm 300 twostroke give less angle.

- KX GURU RACING 2016 KTM 250SXF KX500 CONVERSION 166.jpg (414.47 KiB) Viewed 10056 times

- KX GURU RACING 2016 KTM 250SXF KX500 CONVERSION 167.jpg (402.27 KiB) Viewed 10056 times
With just a little fudging it went in.
A few minor issues and it works like a champ..
Nice job Jason...
If bikes are for kids I'll never grow up.