fits model: Yz400, Yz, 400. make: Yamaha. year: 1978.

( Part Type: Pipe Exhaust Head Header ), ( Placement On Vehicle: Rear ), ( Surface Finish: Black )
This is an exceptional aftermarket exhaust system specifically designed for the 1978 Yamaha YZ400. This exhaust system features a YZ head pipe, catering to the unique needs of the YZ400's engine. The pipe is equipped with a 400 chamber expansion, which is a significant upgrade from the standard exhaust system.
The 400 chamber expansion allows for a more efficient exhaust gas flow, resulting in improved engine performance. This expansion chamber reduces back pressure, which in turn increases the engine's power output and throttle response. Additionally, it helps in reducing exhaust gas temperatures, thereby protecting the engine from potential heat damage.
This exhaust system is made from high-quality stainless steel, ensuring durability and longevity. The material is resistant to corrosion and rust, ensuring that the exhaust system will maintain its appearance and functionality for a long time. The system is also designed to be lightweight, reducing the overall weight of the bike and improving its handling and acceleration.
The exhaust system is a direct bolt-on replacement for the original exhaust system, making installation a straightforward process. It comes with all necessary hardware for installation, including bolts and clamps. The system also meets or exceeds all necessary emissions standards, ensuring that it is legal for use on the road.
In summary, this aftermarket exhaust system for the 1978 Yamaha YZ400 is a high-quality, performance-enhancing upgrade. It features a 400 chamber expansion, is made from durable stainless steel, and is a direct bolt-on replacement for the original exhaust system. With this exhaust system, you can expect improved engine performance, increased power output, and enhanced throttle response.
Pros of buying a YZ400 exhaust system (YZ head, 400 chamber expansion, 1978 header) include:1. Increased performance: The 400 chamber expansion and larger header can help improve the bike's power and torque, making it more enjoyable to ride.
2. Better sound: The exhaust system may produce a more aggressive and satisfying exhaust note, which some riders appreciate.
3. Improved aesthetics: A new exhaust system can give the bike a fresh look and help it stand out from other YZ400s.
Cons of buying a YZ400 exhaust system include:1. Cost: New exhaust systems can be expensive, especially high-quality aftermarket options.
2. Installation complexity: Installing a new exhaust system can be a time-consuming and challenging process, especially for those without mechanical experience.
3. Compatibility issues: The exhaust system may not be compatible with other modifications or aftermarket parts, which could require additional purchases or modifications.
In conclusion, buying a YZ400 exhaust system can provide significant performance and aesthetic benefits, but it also comes with potential drawbacks in terms of cost, installation complexity, and compatibility issues. If you are considering purchasing one, it is important to carefully research your options and ensure that the system is compatible with any other modifications you have planned. Additionally, it may be worth considering the cost of professional installation to ensure that the system is installed correctly and safely.
Recommendation: If you are serious about improving the performance of your YZ400 and have the budget and mechanical skills to install the system yourself, a high-quality aftermarket exhaust system could be a worthwhile investment. However, if you are unsure whether the benefits outweigh the costs, it may be best to stick with the stock exhaust system or consider other upgrades that may provide similar performance improvements at a lower cost.
Be advised that it is against the law for a buyer to even suggest doing so.