THIS WILL BOLT RIGHT ON CT90'S FROM THE K2 MODEL UP THRU ALL YEARS OF CT110. THIS CAN BE USED ON THE CT90K0/K1 MUFFLER IF YOU USE THE NEWER STYLE LOWER HEAT SHIELDS. AFT/S1032 @ *SCREW, OVAL 6x10MM (NOT_STAINLESS) 93700-06010-0A 7/21A (258i) temp out of stockSCREW, OVAL 6x10mm THESE WILL RUST IF USED WHERE TEMPS REACH 450 DEGREES OR MORE. BUT HONDA SAYS OK ON BOTTOM OF BOOMERANG SHIELD ON CT90/110'S, BUT YOUR SUSPOSED TO USE THE INSOLATING WASHER #B41D WITH IT ): 258i @ **PACKING LARGE SHIELD EXHAUST CT70K0/82 CT90/110 18293-GAN-670 1/21M (41A)THIS IS HEAT RESISTANT MATERIAL THAT GOES UNDER THE CLAMP ON THE FRONT OF THE LARGE HEAT SHIELD ON THE MUFFLER OF THE CT70'S. ALSO THE MIDDLE SHIELD ON THE CT90'S AND CT110'S. 41A