When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Most of the stuff in the Harley catalogue adds nothing to performance. I bought some because I like the look. Isn't that what most of us buy accessories for?
You did a great investment in the first place. You will be amazed about how not noticeable the difference is between the performance and the stock plugs. Great way to waste your money.
Red is the fastest color. Will add much HP to your ride. Is $20 or so a waste of money to do a little customizing? Nah!
I bought my red SE plug wires for looks. I didn't notice any boost in performance over stock. The dealer never said a word about them voiding my warranty. But I only had one small part replaced under waranty, and it had to do with the clutch lever assembly.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
