Thursday, January 19, 2012

09 HD nightster exhaust?

The wife has a 09 hd nightster, and wants to change the exhaust to a vance and Hines short shot, no problem, but harley wants to change the intake, retune and dyno test, so to add a $450. exhaust it is now going to run over $1100, is all this necessary?09 HD nightster exhaust?
STAY AWAY FROM POWER COMMANDERS!!!!!....Especially on Sportsters and Softails, there is very little room to mount them, and they only control fuel, nothing else.



This question is being asked ALOT the last couple days....



The other two answers are both semi-correct, but there is more info that you should know.

I just asked a questions here earlier asking why people make such uninformed decisions when purchasing injection tuners...comparing the PC and such to Screamin Eagle's SUPER TUNER....read the question info and posts, if you have any questions, email me here through my profile and I will be happy to help....... http://answers.yahoo.com/question/index;鈥?/a>



HD's injection will allow for a slight exhaust change with no mods, meaning a Screamin Eagle slip-on muffler, for better sound. However, The V%26amp;H Short Shots are for looks only, they are not good performance pipes at all...they are TOO SHORT and too free-flowing, even with tuning, they will not offer very good perfromance (they also tend to cause exhaust soot build-up on the wheel area). On top of that, the exhaust bracket on the Sporty's and Softails is also the exhaust cross-over, which helps make torque, eliinate that, you will lose alot of mid-range torque, the mid-range is where most of your riding is done and where you need the power the most.



Everyone wants better sound, but what about making the bike run CORRECTLY, more effieciently, more power....all this will actually make the engine run easier with less strain, it will make it run cooler which will make it last longer.

If you open up the exhaust, you should open up the intake and let more air in...but...if you do this, you MUST remap the injection to give it more fuel.

Properly tuned, with a GOOD set of pipes, a Screamin Eagle air cleaner or Arlen Ness Big Sucker (very good air cleaner) and proper tuning, you can pick up about 10-12 hp and about the same in torque.



Two similar questions... http://answers.yahoo.com/question/index?鈥?/a>



http://answers.yahoo.com/question/index;鈥?/a>
You don't have to take the bike to the dealer to do the job. You can just replace the Vance and Hines exhaust and it would just be plain loud without any performance gain. The intake must also be open up for more air, majority of the time people used Screamin Eagle intakes (which is just high flow K%26amp;N filter).



Since it is a 2009 and it is fuel injected motor, they will have to use a computer to retune the injecters to the new intakes and exhaust system. A independence HD repair shop can perform that sort of work for you at a fractional of the dealership price.



At the end, it is going to be one loud and fast bike!09 HD nightster exhaust?
I'm sorry but Al's answer is not fully correct.



The V%26amp;H exhaust is a great one. Whats going to happen is with the better, more free flowing exhaust your bike will run lean. Lean will lead to over heating and internal engine damage. You don't need to dyno test the bike or change the intake however. Take it to a non dealer shop. Since your bike is fuel injected it will need to be tuned for that exhaust. The "map" in the computer will not work correctly as the other sensors are feeding it information it is not set up for. You can, have them adjust your fuel injection computer for one general "map" or, (what I would do) is buy a Power Commander. It's easy to install and will automatically adjust your computer to get the best performance no matter where you ride the bike. A simple EGA test will determine if the bike is running correctly. Loud does not = fast
No, it's not necessary. If you keep the exhaust stock, you will have $1,100 in your pocket for gas, you won't be jeopardizing the bike's warranty...and your wife won't be annoying the neighbors with another loud Harley. Truly a "win-win" situation!09 HD nightster exhaust?
A buddy of mine had the short shots on his 09 nightster with the v%26amp;h fuel pak and he was very dissapointed in the performance.They sounded ok and looked good but that was it.

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