Steve,
****Yes, when you upgrade your stock system to an aftermarket system or slip ons, it is necessary to upgrade the air filter kit to a high flow set up, and re-map the fuel injection system with a fuel management module. *Aftermarket exhaust systems such as ours are designed to be less restrictive, but much more high flowing to attain optimum performance gains. *When you install a high flowing exhaust system to your bike, a lot more air will be extracted in through the intake & in to the combustion chamber. *This increase of air needs to be compensated with more fuel. *On fuel injected motors, this can only be done electronically. *Failure to tune your fuel injection system appropriately can cause a lean condition in the motor. *This can lead to future problems and internal damage.****For this we offer the Fuel Pak. *The Fuel Pak module is a plug and play module that needs no dealer installation nor Dyno time. *It was designed to allow the average customer to be able to install and program on their own. *Retail price of the Fuel Pak is $279.95.--
Hector Montoya *
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Vance & Hines
13861 Rosecrans Ave.
Santa Fe Springs,
CA 90670p. ***562 .921 .7461 *f. ***562 .802 .0110