If I gut my Stock muffler would it damage my engine?

Improve or hurt preformance?

Or sound like hell or Heaven?

Void all warrantys lol

 

I have seen others do this to the new R1’s but it does not remove the exhaust valve on the R1 like the 636, not sure what you are riding. I think you would need to get the PC to richen up the fuel mixture with out it the bike would be running lean and that’s not good.

 

2006 ZZR600



this may be a better idea

 

im doing the same thing on my 06 6r.....but i also removed the cat, ordered a AF guage, and a PC

 

Night Mayer has the better idea, get a new bolt on canister and if you want loud and cheap then go for the D&D ..
Your neighbors will love you, NOT ! he he he he