Whether you are accessorizing your motorcycle or purchasing Screamin' Eagle® performance upgrades, rest assured that St. Paul Harley-Davidson will stand behind your motorcycle for a full year from the date of installation.

For EFI owners, an updated computer download will ensure the fuel is metered to the cylinders properly. Harley-Davidson® Screamin’ Eagle® muffler systems have factory-patterned downloads. For aftermarket exhaust systems like Vance-Hines, additional components are available to ensure your bike runs correctly.

Motorcycle exhaust pipes are usually chrome plated. The chrome serves as a protection against rust, abrasion, and the occasional oil spray. While chrome is a uniquely inert coating, even the best plating job will turn yellow, gold, and then blue when subjected to extreme temperatures that can be generated in a high-performance engine. An out-of-tune engine can cause bluing far down the motorcycle pipe where the exhaust is supposed to be cooler. Almost every new bike will blue the header pipe for a few inches from the head in the first several hundred miles.

So what is the answer? Purchase high quality products that have excellent shielding, and keep your bike serviced and tuned. In the end, remember, all pipes will discolor because of high heat. On a well-tuned bike, the discoloration dissipates the further the distance from the exhaust header. Great manufacturers know that heat shields keep pipes looking great.

TESTED-CERTIFIED for use in Harley-Davidson® engine, primary chaincase and transmission applications, the new Screamin' Eagle® SYN3® Synthetic Lubricant makes changing and topping-off fluids a simple, one-product process.