THIS IS THE SAME TYPE OF CAP THAT ALL CT'S CAME WITH FROM THE FACTORY. IT WILL HELP TO REDUCE RADIO INTERFERENCE. 23D @ _ *OEM HONDA SPARK PLUG CAP 30700-KE2-942 1/22M (299H)SPARK PLUG CAP CA110 S90 CL77 CM91 CL90 CL70 SL90 Z50A CL70K1 CT70 C70M QA50 SL70 299H