| Home > Dual Sport > Suzuki DRZ400 Parts > Modification Guide > Exhaust Guide PERFORMANCE EXHAUST PACKAGES: Off the showroom floor, the Suzuki DR-Z400S and DR-Z400SM are tuned more for fuel mileage and emissions, rather than performance. This makes the bike feel a little bit "anemic", but luckily there are a few things you can do to improve the bikes overall performance. To maximize performance and improve ride-ablity of your DR-Z400S or DR-Z400SM, we recommend that you... Doing these simple things will greatly improve the bikes overall performance, making it much more fun to ride, it'll sound a lot better, and you'll drop a little bit of weight at the same time (the stock exhaust isheavy). We've put together a few Performance Exhaust Packages that will give you everything you need to replace the bikes exhaust system, re-jet the carburetor, and replace the stock air filter. All of the packages below will provide nearly identical performance gains, but each has different pros and cons. Read the descriptions below for more details...  OPTION 1: Yoshimura RS-2 Performance Exhaust Package (shown above) This is our personal favorite exhaust system for the DRZ400's. We currently have this exact exhaust system on our White DR-Z400SM Project Bike and also our Yellow DR-Z400SM Project Bike. The RS-2 package provides excellent performance gains, beautiful fit and finish, and a great overall sound. From a sound level standpoint, it is slightly louder than the FMF Q4 exhaust, but slightly quieter than the FMF PowerCore4 exhaust. The RS-2 Muffler is available in either Carbon Fiber or Aluminum and comes fitted with a removable USFS approved spark arrestor. The Yoshimura header pipe includes a laser-etched heat shield. We've created a few package deals (see below) that allow you to bundle the exhaust together with a jet kit, air filter, etc. Links: AIR FILTERS:  The performance exhaust packages outlined above will take care of the exhaust side of the equation, but while you're at it, most riders will also replace their bikes stock air filter with something that flows air better. In our performance exhaust packages, we allow you to add an air filter to the package. You have two options, either a K&N Air Filter or a No Toil Foam Air Filter. We recommend the K&N Filter if you are doing mostly street riding like we do with our DR-Z400SM project bikes. If you are riding off-road or in very dusty conditions, we like the No Toil Air Filters. Both of our DRZ project bikes have K&N Filters installed (shown in photo above). Links: WARNING! - Motor sports can be extremely dangerous, injury or death can occur. No warranty is made or implied regarding any product sold by Devo Tech, Inc. / SoloRacer.com to protect users from injury or death. The user assumes all risks. Please read the rest of our Legal Disclaimer before ordering. Our on-line store is up and running 24 hours a day, 7 days a week. We use Yahoo! Secure Servers for all transactions so you can shop with complete confidence. If you are uncomfortable ordering online, call or email us for more ordering options. ©Copyright 2002-2024 by Devo Tech, Inc. |