mods

Here are a few photos and a video clip showing the GSXR muffler installed on the DR using a specially modified Two Brothers midpipe (with a GSXR flange welded to it).

GSXR600 muffler with modified Two Bros mid-pipe.

GSXR muffler with a bunch of 1/4" holes drilled into the baffle plate for a little "extra sound"

Factory Mikuni BST40 slingshot getting the DynoJet treatment... a 160 main jet, and the slimmer DJ needle.

The factory needle (fat) and the DynoJet needle (skinny)

Installed.