N Bosch EFI, elliptical throttle bodies (equivalent diameter 56 mm) Bosch EFI, elliptical throttle bodies (equivalent diameter 56 mm)EXHAUST Stainless steel muffler with catalytic converter and 2 lambda probes, aluminum tail pipes Stainless steel muffler with catalytic converter and 2 lambda probes, aluminum tail pipesGEARBOX Six-speed Six-speedRATIO 1=37/15 2=30/17 3=27/20 4=24/22 5=23/24 6=22/25 1=37/15 2=30/17 3=27/20 4=24/22 5=23/24 6=22/25PRIMARY DRIVE Straight-cut gears; Ratio 1.84:1 Straight-cut gears; Ratio 1.84:1