Enjoying My Hi-Flow Muffler Insert!

[Hal the Elder]

Hey MotorBike Mike:

I used my Dremel to cut and grind down the short portion of the perforated tube protruding from the front baffle of the muffler, making it flush with the baffle, then I installed it last night.

This morning when I fired Oscar up, I was pleased with the sound! It wasn't much louder than stock, but produced a deeper, more satisfying tone.

I could feel a slight increase in power right away, but I didn't try for any top speed comparison, because I really don't feel safe taking him over 30MPH.

The difference in diameter between the stock exhaust port of roughly 0.625" and the Hi-Flow of about 0.920" gives an increase in flow area of a little more than 2 to 1, which eases the exhaust restriction considerably!

Now Oscar can inhale AND exhale much better!

Soon I'll be ready for the Cam gear advance!

HAL

 

[jbcruisin]

Hi Hal,
I bought one of the high flow inserts at the East Coast Rally form Quenton & installed it at the Rally right away. I like how it sounds too. Advance that cam. You'll like the result.

 

[RdKryton]

I knew you would like the sound. It is worth it just for that. The performance gain is a nice side effect.

Jim

 

[KilroyCD]

The exhaust note with the Hi-Flow is music to my ears as well.