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I just got done putting on and test riding the liner with my new Roadhouse slip-ons. The sound is great; quiet at idle, quiet at cruising speed, but barks and thumps when you are on the gas. It's a low powerful exhaust note. Very nice, I'd recommend them to anyone who isn't looking for something really loud. On the flip side, the installation was simple, but the connector pipe was dented and out of round. I massaged the connector with a pair of pliers until it was close enough to go on the bike. Getting the muffler mounted to the fame was another issue, getting the muffler rotated at the proper angle for a smooth fit with the mounting bolts proved to be time consuming depending on how much of a perfectionist you are. I was getting some minor backfiring, mostly between first and second gear. I rotated and re-tightened the clamp a few times, and the backfiring has disappeared.

All in all, these Roadhouse slip-ons are worth the money.
 

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Sleeper

I like the idea that they only get really loud when you open it up. I wonder if you hear a differance when the Ex Up valve is fully open, around 2,400 RPM, I believe? Or does it just open when you get on the throttle?

I guess the backfire was air leaking around the dented fitting and unburned fuel ignignting.
 

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Rotating the clamp on the muffler

Thanks for the detailed report on the Roadhouse. I don't understand how adjusting the clamp could affect the backfiring. Could you elaborate?

Bob
the clamp may have been letting air get drawn into the exhaust/muffler system so that the remaining unburnt fuel could detonate in the muffler. by rotating or reclamping it may have sealed off the air leak. some where i read that the Roadliner and Startoliner injects air into the exhaust so the catalytic converter can better clean the exhaust gasses. the change from cat to muffler can cause backfiring because the air is now free to do what it wants in the muffler were the Cat uses the air (O2, oxygen) up so there is nothing to cause a backfire. be advised i am talking about muffler backfire not intake backfire. i get quite a bit of intake backfire sometimes. a sharp crack of the throttle at slow speed will give me intake backfire. i assume this is caused by lean factory fuel settings. now that i have the roadhouse slip-on i wont be able to hear that as much. problem solved. i think. J/K
 

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Back fire

J/K,

I think you nailed the exhaust backfire.

I have never had a intake back fire on my Stock Stratoliner. Don't recall hearing many talk about it.

It would seem that there would need to be an flame or spark when the intake valve opens to ignite intake gas.

Dave
 

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Roadhouse sound

I like the idea that they only get really loud when you open it up. I wonder if you hear a differance when the Ex Up valve is fully open, around 2,400 RPM, I believe?
I put my Roadhouse muffler on this winter. i have my bike in a 30' x 40' pole building with very little insulation on the ceiling and none on the walls. at idle it is very quiet just a low mello sound, not much different that stock. if i give it a quick snap, it sounds like you lit off an M80! i think i can scare the crap out of unsuspecting people it is such a sudden sound. if i hold it at a steady 3000 RPM not to bad at all considering i'm in a tin building. i can also here the EXUP opening and closing. it does get quieter when that happens. If i give her the WOT from idle till 5000 RPM then it is like HOLY SH*T, that MF sound bad as hell. FRICKIN LOUD. i think this should work out great because it seems mild tempered at cruzin speed but lets you know she's there BIG TIME when you kick it in the pants. BUT i am in a
30'x40' tin building which im sure adds to the effect. i have done a few 15" burnouts (15"burning, 15" skidding) in there and it sounds cool. do you know the approximate HP gain if i have a K&N and the roadhouse? i have heard 3-5 hp for each add-on but have no proof myself.
 

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Mods

Brain,

No I don't know the gain for The K&N plus a Roadhouse Slip on. But, This link for D&D should be about the same. If you click on the small link to the dyno chart you will see about 7 HP increase, little better than that peak torque. Most of the posts I see say not much is gained from exhaust untill the air intake is opened up.

The K&N replacement for the stock alone may not be much different, not sure. I did see where a few people have used washers the replace the top cover of the air box and hold the filter in place, and felt they picked up some performance. When you start to open up the intake there is an increase in intake noise. I believe the air box is purposly a little restrictive to reduce noise.

http://www.danddexhaust.com/catalog/2007/03/51712b.htm

Dave
 

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I just got done putting on and test riding the liner with my new Roadhouse slip-ons. The sound is great; quiet at idle, quiet at cruising speed, but barks and thumps when you are on the gas. It's a low powerful exhaust note. Very nice, I'd recommend them to anyone who isn't looking for something really loud. On the flip side, the installation was simple, but the connector pipe was dented and out of round. I massaged the connector with a pair of pliers until it was close enough to go on the bike. Getting the muffler mounted to the fame was another issue, getting the muffler rotated at the proper angle for a smooth fit with the mounting bolts proved to be time consuming depending on how much of a perfectionist you are. I was getting some minor backfiring, mostly between first and second gear. I rotated and re-tightened the clamp a few times, and the backfiring has disappeared.

All in all, these Roadhouse slip-ons are worth the money.
Your are right on check out mine here.
http://www.youtube.com/watch?v=m3HLHTByZ0c
this is inside the 30x40 pole building i own. there is snow outside. this is all i get to drive now. roadhouse slip-on sounds great. also the bike never hits the rev limiter. its just the way it sounds to the camera in the tin building.
 

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Check out the vid of roadhouse and airbox mods

Brain,
The K&N replacement for the stock alone may not be much different, not sure. I did see where a few people have used washers the replace the top cover of the air box and hold the filter in place, and felt they picked up some performance. When you start to open up the intake there is an increase in intake noise. I believe the air box is purposly a little restrictive to reduce noise.

http://www.danddexhaust.com/catalog/2007/03/51712b.htm

Dave
Hi Dave, i came up with an airbox mod that costs about .50 cents. i was looking at the air intake system today and really scruitinized it. here is what i found.
1. there is very little room.
2. the area receives high pressure that is forced up under the tank and into the two openings made by the top cover.
3. the top cover is made so that it aims the incoming air streams downward thru the air filter and into the air box. next time you have your air box open take a look at the top cover and you will see a simple ridge molded into the plastic. if you look closely you will see the ridge lines up exactly over the air filter. the factory knew there was high pressure here and made the cover so it would aim the incoming air charge down into the plenum. it looked to me as though the only improvement i would need to do is raise the whole top cover approx 1/4" to 3/8" higher to drasticly allow more of this high pressure air to ram thru the airfilter. i do not believe you will have this effect if you put pods on you lose the high pressure area due to opening up the whole area.
4. raising the top cover will give the airbox more added ram air boost.
5. the air cleaner (K&N) looks as though it has plenty of area for the air that is needed.
6. raising the airbox costs about 50 cents.

ill start a new post about the airbox mod.
 

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Air box

Brain,

I saw your U tube post the bike sounds a little sharper and louder than stock. But, it is hard to tell on a recording because of automatic record and play back levels. The bike seemed to effertlessly spin the tire. You looked cold.

The air mod sounds interesting maybe you can take some pictures and post them as you go? Wonder how you plan to raise the top cover, maybe some gasket material or felt so it is only open in the front? Or will there be a gap all the way around, maybe slope it toward the rear? Surprised someone has not thought of that. Might be less noisy than some mods. I understand the Big Air Kit adds some noise.

Dave
 

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Cold Brain's

Brain,

I saw your U tube post the bike sounds a little sharper and louder than stock. But, it is hard to tell on a recording because of automatic record and play back levels. The bike seemed to effertlessly spin the tire. You looked cold.

The air mod sounds interesting maybe you can take some pictures and post them as you go? Wonder how you plan to raise the top cover, maybe some gasket material or felt so it is only open in the front? Or will there be a gap all the way around, maybe slope it toward the rear? Surprised someone has not thought of that. Might be less noisy than some mods. I understand the Big Air Kit adds some noise.

Dave
yes, i was cold. 22 deg F today. i had to warm the bike up good. she didnt like to start with the 20-50 ams oil full synthetic. she sure does spin that tire easy on the cement though. it is MUCH louder than stock and i am getting to really like the way it sounds inside, lol.
 

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I put the Roadhouse classic 2 into 1 on my liner the day that I got it home from the dealership and it sounds incredible. It has a nice low rumble at idle and a nice mellow rumble at highway speed but fair warning DO NOT crack the throttle in a 20x20 garage with all the doors shut, it will shake your ear wax loose and possibly cause brain damage:confused:. Ripping through the gears on the on ramp its just a nasty snarl that sends a chill up your spine. The main reason I got it was because I thought it looked great and not like every other joe that put on some slash cuts or a V&H. I got it with the serated shields so it looks like an old panhead exhaust and I love it.:D
 
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