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.
Without changing any of the parts, the most simple thing you can do is change the weight of the fork oil. I had a 20W and went to a 30W to stiff'n the ride.
On my 06 I put in SE heavy oil too. Felt like a different bike afterwards. If I had an 07 Fatboy I would change the sliders out with chrome when I changed the oil. The HD kits are dirt cheap on ebay and really easy to install.
Here are three, You would also need to buy the upper cover kit so add another $100. At minimum you would need the cowbells when you did the sliders. Look in the softail parts section on this forum, a couple of months ago a guy had a set that had everything included for sale, for around $150. http://cgi.ebay.com/ebaymotors/HARLE...1%7C240%3A1318
+1 on all of the above. Changed mine to Progressive springs, heavier oil, and chrome. Ok, the chrome's not really a performance upgrade but damn it looks good.
Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom
Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.
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.