SPEEDPRO Header 4-1/4in2in1 for Kawasaki Ninja ZX4R/RR
Features
Completely made of stainless steel
TIG welds
Factory finish
Precision German pipe bending on ultra-accurate CNC pipe bending machines
Improved performance
Extreme weight reduction
Easy installation
Safety mounting screw and clamp
Just bolt on and ride!
Includes 4-1/4in2in1 header with lambda sensor connection
Fits all original (OEM) silencers and aftermarket silencers that match the dimensions of the original system
Compatible with all SpeedPro and Cobra slip-ons (only De-cat replacement header)
SPEEDPRO 4-1/4in2in1 Header Racing for Kawasaki Ninja ZX4R/RR
This SPEEDPRO header is constructed from the highest quality thin-walled and ultra-light stainless steel pipes and sheets.
Many of the components are made from material only 0.7 mm to 1 mm thick to reduce weight as much as possible.
Every step in our design and construction process is the result of detailed craftsmanship, from CNC pipe bending to fully factory-finished TIG welds and the CNC laser logo.
Every aspect of the exhaust and its components receives our full attention, allowing us to offer handcrafted products of the highest quality, while dramatically improving the design, acoustics, performance, and overall weight of your motorcycle.
SPEEDPRO Header The SPEEDPRO header without a catalytic converter is a precisely engineered performance upgrade for your motorcycle. With its low weight, it offers a significant weight saving compared to the stock part. Designed for riders seeking more power, better sound, and a sporty look.
Features
? High-quality material: Made from lightweight, robust stainless steel ? durable, corrosion-resistant, and with optimal heat dissipation for higher efficiency.
? Decat design: By eliminating the catalytic converter, exhaust flow is significantly improved. This results in noticeably more torque and power, while maintaining stable engine characteristics.
? More performance: Improved throttle response, stronger pull in the mid-range, and increased overall performance ? ideal for sport-oriented riders.
? Rich sound: The header gives the bike a punchy, sporty sound ? aggressive but not excessively loud.
Benefits for your bike
? More punch, an even sportier riding experience, and a sound that perfectly matches the aggressive look of the Duke.
? Performance upgrade with a clear, assertive sound ? ideally matched to the minimalist, modern design.
Installation note: The SPEEDPRO header can be quickly and easily installed with standard tools. For best performance, it is recommended to combine it with suitable ECU mapping or a tuned control unit. If the OEM valve is removed, a new ESE Eliminator valve control must be installed.
Features
? Complete construction from stainless steel
? TIG welds
? Factory finish
? Precision German pipe bending on ultra-precise CNC pipe bending machines
? Improved performance
? Extreme weight savings
? Easy installation
? Safety mounting screw and clamp
? Just bolt on and ride!
? Made in Germany
? Not street legal
? With header including lambda sensor connection
Kit contents
? 1 x Complete installation manual
? 1 x Stainless steel header Pro Performance Series incl. lambda sensor connections (if necessary)
Available upgrades and options (at extra cost)
? Matt black ceramic coating up to 1200 degrees
? Titanium finish surface
? Catalytic converters
Note:
The engine management light may appear when using the system; this can be prevented if installation is carried out by a tuning specialist.
In many cases, an ESE eliminator can solve the problem.
After installation, readjustment may be necessary. This can be performed by a qualified specialist. An ECE flash may be require
| Make: | KAWASAKI |
| Notes & Exceptions: | RCO RACE Series *a1/*e1 Performance development/ additional performance/ information on performance development Emmisions Warning CALIFORNIA "RACE SERIES" 50 State legal products 90-Day Limited Warranty |
| Year: | 2023 2024 2025 2026 |
| Exhaust series: | Slip-on |
| Model: | Ninja ZX-4 RR/R |
Average product review
Safety instructions for handling exhaust systems
- Heat warning: Exhaust systems become extremely hot during operation. Avoid contact with the system immediately after operation as there is a risk of burns. Wait until the system has cooled down completely before carrying out any work on it.
- Risk of injury: When dismantling, installing or repairing exhaust systems, there is a risk of injury from falling components or the use of tools. Use suitable protective gloves and safety goggles.
- Avoid inhaling exhaust fumes: Exhaust gases contain harmful substances such as carbon monoxide. Only work in well-ventilated areas or use extraction systems to prevent the accumulation of exhaust fumes.
- Take care when lifting: If the vehicle needs to be lifted, use suitable lifting equipment and secure the vehicle with jack stands to prevent it from falling.
- Fire hazard: Ensure that there are no flammable materials (such as oil or fuel) near the exhaust system, as these can be ignited by the heat.
- Use suitable tools: Only use suitable and intact tools to prevent damage to the exhaust system and injuries.
- Schutzausrüstung tragen: Wear suitable personal protective equipment (PPE) for all work, such as work gloves, safety goggles and, if necessary, hearing protection, to prevent injuries.
Manufacturer: Speed Products Gmbh, Zum Kaiserbusch20, 48165 Münster, www.speedpro.de
Manufactured according to customer specifications
Our exhaust systems are manufactured according to customer wishes and specifications. They are not stock items (stock items are marked accordingly and cannot be adapted, changed or configured), but are manufactured individually according to customer wishes within the production possibilities.
The following applies: according to Section 312d Paragraph 1 No. 1 of the German Civil Code, there is no right of withdrawal for distance selling contracts for the delivery of goods that are manufactured according to customer specifications. Please also read further information on the right of withdrawal and the general terms and conditions. However, since exhaust systems are handmade, delivery delays can occur for certain systems. However, silencers, manifolds and exhaust systems are not mass-produced goods, but are lovingly hand-welded, polished, manufactured and refined by experts according to your wishes and specifications. We endeavour to keep delivery times as short as possible.
All important information can be found on the left under the additional customer information.
