All systems fit clear of oil and filter drain plugs, and allow retention of center stand. Chrome systems feature a conventional megaphone design. Black systems use a brushed steel canister muffler. All are 4 into 1 unless noted. 4 into 2 systems available for the following bikes; Honda CB750K 77-82, Yamaha XS1100 78-81, Yamaha XS1100L 80-81, and the Yamaha XS1100S 79-81. |