To their 86-03 bikes, it requires only the fabrication of one bracket.
You can find our XL exhaust system dyno test results here.Īn excellent choice is the Patriot Defender (available direct from Patriot here).Īlthough it technically only fits 04+ models, lots of people have successfully fitted the Defender We've tested a bunch of exhaust systems and there's a massive difference from one to the next both in the power produced and how it's distributed in the rpm range.
Exhaust systems have a profound effect on a motor, especially when you use cams that add overlap - and if you're looking for performance from cams, overlap.However, no matter which generation of 1200 you have, certain things remain constant: In the sections below, we'll go over the best approach with each generation of 1200. If you're interested in more of the details of 1200 heads and their differences across generations, read this tech article. And on top of that, the 1986-1987 heads are a different animal yet.īy comparison, 883 heads have pretty much the same performance capability from 1986 to present. So you have to take a whole different approach depending on which generation of 1200 you have. That's because between the 20 model years, XL1200 heads went from being the worst to the best heads available for a performance application. We've organized this article differently than the 883 article, for the simple reason that the approach you should take varies greatly depending on Tech article on converting your 883 instead. If you have an XL1200 Sportster and you're considering performance upgrades, this article is for you.
PLEASE NOTE: This article is a work in progress.
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