Other Anybody clean the inside of the exhaust?

[Rotorhead65]

My b-pipe has the sludge/slime build-up in it and I was wondering if anyone ever cleans the inside of them. My "background" is drag racing snowmobiles and we cleaned the insides every once in a while but it wasn't sludgy like the b-pipe is. This sludge has got to deaden the sound wave a lil bit. On the sled pipes we would stick the flexible shaft from a weedwacker in the end of a drill and the other end into the pipe. It would bounce around in there and knock it loose. Any ideas?

 

[rollin5150]

I have heard of people using oven cleaner with some success

 

[SUPERJET-113]

Also using a long toilet brush works well!

 

[Idok]

a little gas and some pebbles works perfectly..just shake it up

 

[oxnard111]

I have just used a regular can of engine de-greaser with success.

 

[snowxr]

Light it on fire!