Exhaust inserts for Laguna Nov14

stangmx13

stangmx13

not Stan
Looking to buy or borrow a pair of exhaust inserts for Laguna on Tues. The bike is a KTM RC390 with a Yosh dual exhaust. The exhaust opening is 35mm and completely straight. Anyone got any leads for this short notice?
 
Triple R

Triple R

DVN Motorsports
I have a yoshi quiet insert. Measures 35mm OD (the part that slides into the muffler), but the end of it (that sits at the tip) is 50mm. Unfortunately I only have 1. Let me know if that'll work for yah.
 
stangmx13

stangmx13

not Stan
Triple R said:
I have a yoshi quiet insert. Measures 35mm OD (the part that slides into the muffler), but the end of it (that sits at the tip) is 50mm. Unfortunately I only have 1. Let me know if that'll work for yah.
Click to expand...

Thnx for the offer. I doubt 1 will cut it, but I'll let you know. Are u going to be at Laguna Mon or Tues?
 
Roadstergal

Roadstergal

Sergeant Jackrum
Did you contact Jay Murray? He's done work at short notice... well, it might be too short now, but no harm in calling.
 
stangmx13

stangmx13

not Stan
everything worked out, mostly by using <20% throttle past the sound booth in 6th gear.

i ended up hacking together some inserts, essentially sheet metal cones w/ holes in them. who knows if they worked.

first session i did a sound check. the first 2 laps were fine with <30% throttle, final lap at WOT was 97db :laughing. so i cruised that little straight in 6th every single lap. it rly didnt matter since i was just messing around and being a hooligan w/ friends all day. B+ w/ a bunch of fast friends on little bikes is hilarious fun.

halfway through the day, one of my inserts started to crack and blow out. i removed it for safety reasons and reduced my rpms a little bit there. the bike gained some power back so maybe i actually went faster after that.
 
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