GPR Exhaust Systems, established in Milan, Italy in 1968, specializes in creating premium motorcycle exhaust systems. This comprehensive guide answers questions about our products, technical specifications, installation procedures, and customer support services.
Today, GPR Exhaust Systems makes several different products, including Exhausts, Top and Side Cases.
Table of Contents
- Understanding GPR Exhausts
- GPR Exhaust System Basics
- Technical Components
- Installation and Maintenance
- Orders and Support
Understanding GPR Exhausts
Q: What is GPR's history?
A: Our company began manufacturing motorcycle exhausts in Milan, Italy in 1968. We have maintained our commitment to Italian craftsmanship and engineering excellence throughout our history, specializing in creating high-quality silencers and headers for motorcycles.
Q: What warranty coverage do you provide?
A: Each GPR exhaust comes with a 24-month warranty from the date of purchase. We provide repair or replacement services for manufacturing defects to original owners throughout the product's lifetime, provided they can show proof of purchase.
Q: How do GPR exhausts improve motorcycle performance?
A: Our exhaust systems deliver performance improvements through weight reduction compared to stock exhausts. Users experience enhanced throttle response and improved engine performance. The specific benefits vary depending on your motorcycle model and the exhaust system you select.
Q: Will the exhaust be road legal?
A: Yes, unless it is a full race product. In this case, it will not include a DB Killer. This will be stated within the title and/or the product description.
GPR Exhaust System Basics
Q: What is the difference between slip-on and full systems?
A: A full system provides a complete replacement of all exhaust components from the engine to the tip, including headers, link pipes, and the muffler. A slip-on system includes only the muffler and link pipe, working with your existing header pipes.
Q: Which GPR exhaust produces the loudest sound?
A: The Furore Line creates our most pronounced sound signature. The Trioval and Satinox models offer quieter options with balanced performance. The Ghisa provides a moderate sound level. All systems include removable DB killers for sound level adjustment.
Q: Are GPR Exhausts loud? How much louder than standard will it be?
A: With the removable DB reducer in place, it will be slightly louder than standard and will have a sportier sound. With the DB reducer removed, it will, in most cases, be as loud as a full race exhaust and should only be used on private land or race circuits that allow FIM noise levels.
Technical Components
Q: What are DB Killers and how do they work?
A: DB Killers function as removable sound reduction devices within the exhaust. These components allow precise control over your exhaust's sound level while maintaining performance characteristics. Each GPR exhaust model uses a specific DB Killer designed for optimal balance between sound management and performance delivery.
Q: Can I purchase DB Killers separately?
A: Yes, we provide replacement DB Killers. To ensure you receive the correct component, contact us through our website with pictures of your current exhaust, a photo of the DB Killer opening, your preferred sound level, your motorcycle's make, model, year, and your shipping information.
Q: How do I install a DB Killer?
A: For a detailed visual guide on DB Killer installation, we have created a step-by-step video tutorial. You can view our installation guide at GPR DB Killer Installation Tutorial.
Q: Do all exhausts include spark arrestors?
A: Most GPR exhaust models include spark arrestors, except our entry-level models (Ghisa, Trioval, and Satinox). The spark arrestor remains functional with the external DB Killer removed, as it's part of the internal DB Killer cone structure.
Q: Do link pipes work with other brands?
A: GPR link pipes are engineered exclusively for use with GPR exhausts. While they might physically connect to other systems, we cannot guarantee proper fitment or performance with non-GPR components. For optimal results and warranty coverage, use complete GPR systems.
Installation and Maintenance
Q: Will my GPR exhaust come with everything I need to fit it?
A: Yes, every GPR exhaust system includes all necessary components for installation, including mounting brackets and hardware required for your specific motorcycle model.
Q: Will your exhaust fit with my panniers?
A: Our exhaust systems are compatible with panniers that are specifically designed for your motorcycle by the original manufacturer or brand. However, we cannot guarantee proper fitment with aftermarket panniers from other manufacturers, as their specifications and mounting positions may vary.
Q: What comes with my GPR exhaust?
A: Every GPR exhaust includes all necessary mounting hardware, comprehensive installation instructions, and a DB Killer for street-legal models. We also provide access to video installation guides on our YouTube channel for detailed guidance.
Q: Where can I see the installation videos?
A: You can find our complete collection of installation videos on our official YouTube channel. Visit GPR Exhausts Official Channel for general installation guides, or check our model-specific videos for detailed instructions for your particular motorcycle.
Q: Will I need to adjust my motorcycle's fuel mapping?
A: For standard street use, GPR exhausts do not require remapping or fuel system adjustments. However, for high elevation use or racing applications, we recommend professional tuning to optimize performance.
Q: What should I check if my motorcycle runs lean after installation?
A: If you notice poor performance or stalling, first verify proper DB Killer installation. Test operation without the DB Killer to isolate potential flow restrictions. Check all mounting points for security and examine all connections for exhaust leaks. Contact our technical support through our website if issues persist.
Orders and Support
Q: What are your shipping timeframes?
A: In-stock items typically ship within 1-2 business days. Made-to-order items require 2-3 weeks for manufacturing. Free shipping applies to countries listed in our checkout process. International shipping times vary by destination.
Q: How do I initiate a warranty claim?
A: Contact us through our website with your proof of purchase, clear photos showing the issue, a detailed description of the problem, and your contact information. Our technical team will review your claim and provide appropriate support or replacement options.
Q: What is your return policy?
A: Contact us immediately for return requests. Returns must include all original components in unused condition. We process returns based on the product's condition and the timing of the return request.
Q: How do I cancel an order?
A: Contact us immediately through our website for order cancellations. We will process your request as quickly as possible to prevent shipment.
For additional questions or support, contact our customer service team through our website.