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Slip ons- Worth any power?

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Old Apr 25, 2008 | 09:38 AM
  #1  
Vettepro's Avatar
Vettepro
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From: Ventura Ca.
Default Slip ons- Worth any power?

I FINALLY got my new 08 Street Glide the other day. ( The dealer took 10 days to prep it and install the kit after I bought the bike)
It's got the 103 kit with cams, but stock exhaust.
Are slip ons going to do anything for me as far as power is concerned? I am just impatient and think I can get those locally.
Is a 2-1 substantially better and worth the wait?
I will get it tuned, regardless of which exhaust I get.
 
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Old Apr 25, 2008 | 09:43 AM
  #2  
NICK56's Avatar
NICK56
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From: NY NY
Default RE: Slip ons- Worth any power?

U HAVE OPENED A CAN OF WORMS WITH THE 103 KIT.. UR MOTOR IS AN AIR PUMP.. MORE AIR (IN) VOLUMN MEANS ITLL NEED A FASTER INTAKE... K+N ETC... AND TO BREATHE RITE IT NEEDS A FASTER WAY TO GET THE AIR OUT. U DEFINATELY NEED AN EXHAUST SYSTEM. SLIP ONS OK.. 2 INTO 1 BETTER THAN TRUE DUALS (USUALLY)
 
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Old Apr 25, 2008 | 09:43 AM
  #3  
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big_al
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From: South Florida
Default RE: Slip ons- Worth any power?

I had slip on's on my SG and it did not gain anything but sound.
Alot of the people here say that 2 into 1 is the way to go for performance.
I personally think that a Touring bike looks alot better with dual exhaust and
that is the reason I went with Rineharts true duals and I did noticed better performance even thou
that most claim you lose torque I did not noticed any loss of power but alot of gain.
 
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Old Apr 25, 2008 | 09:45 AM
  #4  
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ironhead3fan
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From: Maryland
Default RE: Slip ons- Worth any power?

You will get more airflow with slip-ons. True duals look the best, but ask just about anyone on here, 2-1's are where the power is.
 
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Old Apr 25, 2008 | 10:36 AM
  #5  
iclick's Avatar
iclick
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Joined: Sep 2005
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From: Baton Rouge, LA
Default RE: Slip ons- Worth any power?

Vettepro, consider this option with a free-flowing AC (SE, K&N, Ness, etc.) and a PCIII or other EFI controller:

http://fuelmotousa.com/rush_fuelmoto

This package performs up the the level of a 2-into-1 at a much lower cost, and uses the stock head pipes. You can buy the package from Fuel Moto and get a fine map included, but I don't know if Jamie has a map for the 103 and these baffles yet. Call him and ask.
 
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Old Apr 25, 2008 | 11:35 AM
  #6  
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Ultra007
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Joined: Apr 2008
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Default RE: Slip ons- Worth any power?

We all spend tons of bucks on all the "performance bling" or want to at least. I'm guilty of it too. We then rationalize the benefits due to the expense.
It comes down to what you want a bike to do, budget and looks.
Unless you want an all out kick *** racin' Harley, the performance difference in power can sometimes be very little. I know I'm going to catch some **** for that but come on, let's keepit real here. We buy all hot stuff because we WANT it not NEED it. SO if it's what you want and you're willing to put up with the side effects, buy it all.
The truth is closer stock than most will admit. 2 into 1 exhausts will usually provide the most power on bikes with the motor to drive it. But on all but the biggest motors, the difference over a good true dual is actually small. Maybe 3 - 7 hp and about the same in torque. It takes at least a 5 hp or 7 lb. to make it truly noticeable to an objective rider. And don't get me started on dyno charts that can prove otherwise. If 2 into 1 is what ya think works best and you like the looks, buy a Thunderheader and blast away.

SLipons on a stock system when properly done will get very good power and will be more balanced over a broad rpm range. There are several good ones to choose from. Grind out the obstruction in the y-pipe, get a good flowing air cleaner, buy whatever slipons you like the looks and sound of, and invest in a good tuner like a SERT. Have that dyno tuned and ride on my friend.

I can show you dyno charts that will show a modified stock system with V&H slipons will perform at least as good as Rineharts or V&H true duals.

With power ... when is enough, enough - how much is it worth to you - and what difference does it make?

Now, rough me up guys. LOL But ya know it's true. LOL
 
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Old Apr 25, 2008 | 11:50 AM
  #7  
Windup08's Avatar
Windup08
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Joined: Sep 2007
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Default RE: Slip ons- Worth any power?

Everything I've read seems to indicate slip-ons, high flow A/C and fuel management will get you the best bang for the buck....with the possible exception of 2 into 1s. True Duals look nice and sound nice, but you will loose at least a little low end torque.....not sure if it would be enough to actually feel it though. If you are going to do exhaust do the intake and fuel managment too....especially since you have a 103 build you might as well get the most out of that engine.
 
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