Inferno CVO-- why would your sixth gear indicator not work from a pulley change? This is the combination I am looking to put on my FXSTSSE2. Thanks to all that gave part numbers! I purchased Cycle Shack 1547 baffles to replace the stock baffles in the stock Slash Downs and purchased a set of stock headpipes for a '07 and up Softail Nightrain. Gives it that sound they had from the old SE mufflers, not like the SE2 mufflers and later. I didn't like the sound from any of the other guys like V&H, Bassani, ...etc. The stock Harley 2 into 2 with the balance tube is a superior system to the others. Total cost to change this, baffles $45.00 on Ebay(new) and headpipes with stock taper mufflers $100.00 also Ebay, plus the price of new exhaust gaskets! About $160.00! Sure beats $900.00 to go with the other guys! The Daytona Twin Tech System is the way to go! It allows your sixth gear indicator to work, the sensors and alarm system, AND is able to be read with the HD scan tool should problems develop. Great if you're traveling and have a breakdown! Not so with the other ECM's. Cost is a little more than the Zipper Thundermax. I know there are cheaper systems, but they all require "Dyno" time which adds $$$ up! So spend it now or spend it later! But with spend it later it means dyno time with every change. Daytona and Zipper allow you to make changes with your laptop. Which means NO DYNO TIME!