4-1 Exhaust Performance Upgrade
Fits: Kawasaki GTR1400 2007-2021Â (ZG1400 Concours 14 USA)Â
Designed in 2019 to bring your GTR1400 up to date with modern exhaust systems.
Improves throttle response and performance. 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
Performance specification 304 grade stainless steel.
Ultralight headers, these weigh in at fraction of the originals at 3.14 Kilos / 7 lbs, originals weigh 5.3 kilos / 11.7 lbs
Modular spring fit design for easy fitment and replacement of individual pipes.
No re-jetting or modifications required.
Will accept your panniers / luggage.
Designed to accept your original centre stand.
Includes all required gaskets, 4 x engine port gaskets, 1 x silencer / muffler gaskets, anti-vibration rubber-coated Springs and new silencer clamps.
Silencer Material : 304 Grade Polished Stainless Steel
Silencer Body Length excluding tips = 400mm
Silencer Diameter = 110mm
Silencer Code:Â 400SR
Fitted with a removable DB killer.
See our Silencer Specifications Tab for length & noise levels.
2 Year Black Widow Unlimited Mileage Warranty.
Model
GTR1400
Type
Full System
Silencer Material
304 Grade Polished Stainless Steel
Silencer Length
400mm
Shape
Round
Brand
Black Widow Exhausts
Product Code
400SR/SN40R
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