The Honda CB400T, a classic motorcycle known for its reliability and smooth engine, often benefits from exhaust upgrades. A popular choice is a 2-into-1 exhaust system, often referred to as a "Mac" style exhaust due to the prevalence of Mac performance exhausts in the market. This upgrade offers several potential advantages, but it's crucial to understand the implications before making a purchase. This guide will explore the benefits, drawbacks, and considerations involved in fitting a 2-into-1 exhaust system to your CB400T.
What is a 2-into-1 Exhaust System?
A 2-into-1 exhaust system, unlike the stock twin exhausts, combines the exhaust gases from both cylinders into a single pipe before exiting at the rear. This design aims to improve performance by optimizing exhaust scavenging and flow. The "Mac" style, while not a specific manufacturer, usually denotes a particular design aesthetic featuring a collector where the two pipes merge, often ending in a single, upswept exhaust.
Benefits of a 2-into-1 Exhaust on a CB400T
- Improved Performance: A well-designed 2-into-1 system can improve low-to-mid-range torque, making the CB400T more responsive and enjoyable to ride. The improved scavenging effect helps to clear exhaust gases more efficiently, leading to a more complete combustion cycle.
- Weight Reduction: By replacing the heavier twin exhausts with a single unit, you can reduce the overall weight of your motorcycle, potentially leading to improved handling.
- Aesthetic Appeal: Many riders appreciate the cleaner, more streamlined look that a 2-into-1 exhaust provides compared to the stock dual exhaust system. This contributes significantly to a customized, upgraded aesthetic.
- Sound Enhancement: A 2-into-1 exhaust system can alter the sound of your CB400T, often resulting in a deeper, more throaty tone. However, the specific sound will depend heavily on the exhaust's design and materials.
Drawbacks of a 2-into-1 Exhaust on a CB400T
- Potential Loss of High-End Power: While low-to-midrange torque often improves, some high-end power might be sacrificed. This is dependent on the specific design of the exhaust system and the tuning of your engine.
- Cost: High-quality 2-into-1 exhaust systems can be more expensive than aftermarket dual exhaust systems or simply repairing/replacing stock ones.
- Installation Difficulty: Installing a 2-into-1 exhaust may require more mechanical skill and knowledge than replacing a simple bolt-on part. Some modifications to your motorcycle might be necessary.
- Compliance: Depending on your region, a non-compliant exhaust may lead to fines or issues during vehicle inspections. Always check local regulations before purchasing and installing an aftermarket exhaust.
Will a 2-into-1 Exhaust Increase Horsepower on my CB400T?
This is highly dependent on the quality of the exhaust system, the overall condition of your engine, and how the system is tuned to your motorcycle. While some users report increases in horsepower, others find minimal changes or even a slight reduction in peak horsepower, though often with increased torque lower in the rev range. A well-engineered system optimized for the CB400T engine will often yield improvements, but this is not guaranteed.
What are the Best 2-into-1 Exhausts for a CB400T?
There isn't a single "best" exhaust. The ideal choice depends on your budget, desired sound, performance goals, and aesthetic preferences. Research various manufacturers and read reviews to find an exhaust that meets your specific needs. Consider factors like material (stainless steel, titanium), construction quality, and reputation of the manufacturer. Remember to check compatibility before purchasing.
How Much Does a 2-into-1 Exhaust Cost for a CB400T?
The price varies greatly depending on the brand, materials, and features. Expect to pay anywhere from a few hundred dollars to well over a thousand for a high-quality system. Budget appropriately, considering installation costs as well.
Conclusion
A 2-into-1 exhaust system can offer numerous benefits for a Honda CB400T, from enhanced performance and a weight reduction to a more aggressive aesthetic. However, potential drawbacks, such as potential high-end power loss and installation complexity, must be weighed against the advantages. Thorough research, careful selection, and professional installation are crucial for a successful upgrade. Remember to prioritize safety and compliance with local regulations throughout the process.
