When you buy this set, you are going to get the mufflers, the special header pipe and teflon couplers necessary for installation into the model.
SET for KRILL EXTRA 330SC 31%+MVVS 58
Set includes:
1x canister Muffler M-60-M
1x special header pipe for MVVS 58 Engine
1x Teflon Coupler 25mm
1x Clasp 29mm