4-1 Down Pipes Upgrade Fits: Kawasaki GTR1400 2007-2021 (ZG1400 Concours 14 USA) - Designed in 2019 to bring your GTR1400 up to date with modern exhaust systems. - Streamlined interiors for reduced internal turbulence. - TIG-welded by hand for smooth internal welds, optimal internal gas flow, and power gains. No internal restrictions. - Accepts original O2 Lambda sensor for fuel-injected models, blanking bolt provided for earlier non-injection carburetor models - Compatible with original Kawasaki silencers or any fitted to your standard downpipes/headers. - Made from 304-grade stainless steel. - Ultralight, these weigh in at fraction of the originals at 3.14 Kilos / 7 lbs, originals weigh 5.3 kilos / 11.7 lbs - Modular .
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