Dong Fang DF 250 RTB Bobber Information

[axa]

Take a flashlight and get down on your knees and look up the muffler. The catalytic converter is in the front of the muffler. Yes, you are removing the catalytic guts. I used a one inch bimetal hole saw with a 12 inch extension and did a slow cut. I was lucky this time and all the guts blew out when I started her up. When I did it on my long gone 2010 I has to take the muffler off and run a snake from the front of the pipe to get all the pieces out.

Warning:The exhaust note is going to be a lot louder. Nothing like a Harley loud but...

Doing this gets rid of that real hot spot in the front of the muffler. That cat puts out some heat.

so exactly what your doing is removing an impedance to air flow, thus allowing the engine side to run more cool. makes sense.

reckon it helps our top end at all? Sometimes lack of back pressure isn't a good thing...