[coppi0_3]

Since I´ve read so much about the advantages in sound and power when you´ve drilled the silencers I finally decided to do it. I made a 2´2 cm diameter hole in every muffler but I am not happy with the result. The one on the right sounds well, but the one on the left, where only one cylinder expels gas sounds awfully rattling a lot when I throttle. I´m afraid I´ve spoiled the exhaust and I think will have problems with the MOT. Has it happened to any of you? I´m surprised because they sound pretty different and I don´t know what I´ve done wrong. Thanks.

 

[parrycm]

You say it rattles? Like something is loose inside? If you used a hole-cutter then perhaps the disc you cut is inside the silencer?

The single pipe will always sound different than the 2-1 pipe - better in my opinion.

 

[BigAl8295]

I had a problem with a loose bit of metal rattling around after I drilled out my stock mufflers.

Took forever to come out, but I played around with it until it id.

Drilling the mufflers is a nice improvment, but after a little while you'll just end up getting a better set of mufflers.

 

[cafetbird]

only 2 cm? Maybe you need a bigger hole.

Did you take the pipe off the bike? It is best to do this to remove the slugs...

[ This message was edited by: cafetbird on 2007-02-21 20:03 ]

 

[coppi0_3]

Hello! First, many thanks for your help. As I wasn´t happy with the result of my drilled mufflers, I´ve tried to improve it.
What I didn´t like most was the fact that the sound of the left silencer was much noisier than the right one and the effect was a total unbalance with identical holes (2,2 cm) in every muffler.
I,´ve inserted a collar (1,6 cm inner diameter) into the first conical restrictor from the engine side of the left muffler, just before the main restrictor that I had drilled. The result with a more little hole in the left silencer seems to be better because the exhaust is much more compensated and continues being throaty. Greetings..

 

[DragonNester]

I, like you, wasn't happy with the sound after drilling my '01 Legend out...sounded ratty to me. I also had something rattling around inside, but got over it. Not so with the new exhaust report though. So, I broke down and bought Triumph off-road silencers. Expensive, but sound MUCH better...got the growl I was looking for!

Good luck on getting what you want in the sound department.

 

[coppi0_3]

You´re right DragonNester,it´s not a secret that TOR´s are the best option, but they are so expensive....I´ve tried a couple of auctions in ebay for TOR´s and it´s been difficult because a lot of people want them.