More power and less weight for Kawasaki’s supersports superbike.

The 2011 ZX-10R features class-leading performance and electronics, and Yoshimura have announced the release of an R77 Performance End-Can developed specifically for Kawasaki’s flagship sports bike, which boosts power in open form and offers considerable weight savings over stock.

The R-77 End-Can uses a trapezoidal-shaped sleeve, maximizing muffler volume, while offering a sharp silhouette. There are two options to choose from; the R77 End-Can alone, that bolts straight onto the stock exhaust system, or the R77 End-Can with ¾ link pipe, which dispenses with the catalyzer. Both are designed and approved for circuit use only.

Tech Specs are as follows; weight of the stock can is 6.53kg.

ZX-10R R-77 Performance End-Can

Part number, sleeve type & RRP (inc. VAT):

Stock OE weight 2.22kg

1418020220 Carbon Fibre sleeve/CF end cap 1.86kg £676.04

1418020520 Stainless Steel sleeve/CF end cap 2.10kg £540.61

1418020550 Stainless Steel sleeve/SS end cap 2.05kg £484.18

1418020720 Titanium sleeve/CF end cap 1.87kg £619.61

ZX-10R R-77 Performance End-Can plus ¾ exhaust system

Part number, sleeve type, weight & RRP (inc. VAT):

Stock OE weight 6.52kg

1418040220 Carbon Fibre sleeve/CF end cap 3.5kg £709.89

1418040520 Stainless Steel sleeve/CF end cap 3.7kg £574.46

1418040550 Stainless Steel sleeve/SS end cap 3.6kg £518.03

1418040720 Titanium sleeve/CF end cap 3.53kg £664.75

Noise output (decibels) Slip/ons

Stock exhaust: 93.8dBA @ 5,000rpm

R77 with dB-Killer fitted: 93.9dBA @ 5,000rpm

R77 open: 92.6dBA @ 5,000rpm

Noise Output (decibels) ¾ system

Stock exhaust: 93.8dBA @ 5,000rpm

R77 with dB-Killer fitted: 97.3dBA @ 5,000rpm

R77 open: 100.4dBA@ 5,000rpm

Power Slip/ons

Torque

Stock: 164.6bhp 75.8lb-ft

R77 with dB-Killer: 159.9bhp 73.8lb-ft

R77 open: 164.5bhp 76.1lb-ft

Power ¾ system Torque

Stock: 164.6bhp 75.8lb-ft

R77 with dB-Killer: 161.5bhp 75.8lb-ft

R77 open: 166.5bhp 76.8lb-ft