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.
Hey people,
I new here but have visited this forum many times in the past and found it very informative. Now to the Question at hand. I have a 2018 FLHCS 114, I didn't like the sound of the factory exhaust so decided to purchase a set of Vince & Hines twin slash 3" slip on and I couldn't believe the sound and performance increase. However I was informed that I needed to have it tuned in order to retain my 2 yr. warrantee. I purchased the Eagle screamer se pro street tuner and had my local Harley dealer install the recommended updates to the ecm. After the service the bike does not seen to have as much pep, don't get me wrong this thing is fast and has plenty of torx but not like it did after spending an additional $399. for the tune kit and $65. for Harley to install the (up date). Again its still fast and all but just trying to figure out why the loose of umph.
Only thing i can think of is the HD tuner would not have a map for the V&H slip-ons, it would be for the HD street cannons but surprised it would make much difference....
I have slip ons on my m8 and didn't need any tuning just like the twin cams. As long as they are epa compliant, slip ons alone should not cause you any warranty issues.
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.