Comments on: Exhaust performance: Harley Road King?

By: been_here_and_gone

been_here_and_gone — Mon, 28 Sep 2009 14:33:18 +0000

Although this review is for Sportsters, it will give you an idea of what you’re looking into. Personally, I run Vance & Hines Big Shots staggered on a FLSTF with 95" big bore kit without baffles and I find them plenty loud and the power curve is good. In fact, I’m thinking of putting the baffles back in to cut down the sound and increase back pressure for performance.

I have run Cycle Shacks in the past and for the money I don’t think they can be beat for performance and sound at that price range. They definately are loud. I am not 100% sure, but I think Cycle Shack makes the Screamin’ Eagle pipes for HD. I would definately go for a 2 into 2 setup. But, I like low end rpm torque more than higher end rpm torque. See Supertrapp comparisons for 2 into 1 and 2 into 2 in article.

By: nbr660

nbr660 — Mon, 28 Sep 2009 14:33:18 +0000

Save yourself some money and open up the baffles in your stock exhaust. I think you’ll like the sound and it will be free.

By: doug955

doug955 — Mon, 28 Sep 2009 14:33:18 +0000

DO NOT open up the baffles.what if you wanted to go back to stock? it will make it loud yes but hurt your performance.I know your bike is not a Spotster but I ride one and the service manager recommended Vance&Hines Straight Shots for my bike and I see the same thing on the bikes they dress up in the showroom.They have a great sound with the baffles in.Cycle Shack does make the Screaming Eagle mufflers and sound nice too.Whatever you do dont go with drag pipes.They are loud and obnoxious and contrary to popular believe wont do you any good except on the DRAG STRIP or if you run wide open all the time

By: The Dest

The Dest — Mon, 28 Sep 2009 14:33:18 +0000

I have a Dyna Super Glide and I have Screaming Eagle straight through glass packed exaust on it and I absolutely love them.
It makes that deep clasic Harley pop on idel and roars like a great beast of legend on acceleration.

By: LifeRyder

LifeRyder — Mon, 28 Sep 2009 14:33:18 +0000

Two into one exhaust will increase HP. Typically 3% as shown on Dyno Test. Remember though that changing the pipes on the newer scooters is not like the old days. If you Road King is injected, you need to get a PowerCommander or have the local wrench burn the chip. If non-injected (rare on Road King) the jets need to be revamped. While you are freeing the exhaust note, change the stock breather to a K&N filter and add more air.
Failure to do it right will result in poor performance, BUT it will sound good. Show with no Go is a drag.
As for Drag pipes, my ‘73 Iron Head & ‘94 Evo (both Sporty) are loud and run strong with 32" and 40" headers, unrestricted.
My ‘04 Dyna will be getting Hooker before the season is done and the ‘00 Bagger is set for Rhinehart 2/1.