01 520 Exhaust modifications

I dont have the budget to buy a new straight thru pipe and was wondering if its possble to drill out the rivets and modify the internals on a stock tail pipe?

I have a diagram of the design and it appears you can convert it to a straight thru pipe but I dont know what the side effect of this would be on performance?

The bike came from KTM with a competition grade exhaust, little to be gained other than noise

Ahh... didnt realise that. Most of the guys I ride with have CRF450s and all have a sports exhaust tailpipe. with a beefier sound to mine.

Will leave it as is then.


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