Slip on exhaust performance?

mista350z · March 2nd, 2009, 02:42 PM

If I add a slip on yoshimura exhaust will it do anything besides sound better? as in will I notice any performance increase or reduced low end performance?

kkim · March 2nd, 2009, 02:47 PM

mostly for sound. The low end might suffer a bit as the lower back pressure by the slip on would make the bike run even leaner at the bottom end, which it already does, stock.

shimming the needles will get you power on the bottom end once you are completed with your exhaust/intake selections.

mista350z · March 2nd, 2009, 02:57 PM

Thanks Kelly. If I just want to add the slip on for sound and looks. Will It affect the performance tremendously or can I live with it?

kkim · March 2nd, 2009, 02:58 PM

what does the manufacturer say about their slip on and jetting?

mista350z · March 2nd, 2009, 02:59 PM

huh? I am a complete noob.

kkim · March 2nd, 2009, 03:06 PM

Do they recommend you do anything to the bikes jetting(fuel mixture) if you install their slipon?

Most manufactures will have the installation instructions posted somewhere on their website. I suggest you read the product installation instructions and see what they recommend as far as having to adjust your jetting to compensate for their slip on.

March 2nd, 2009, 02:42 PM	#1
mista350z ninjette.org member Name: John Location: The OC Join Date: Feb 2009 Motorcycle(s): 08 CBR600rr, 08 Ninja 250r - sold Posts: 81	Slip on exhaust performance? If I add a slip on yoshimura exhaust will it do anything besides sound better? as in will I notice any performance increase or reduced low end performance?

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March 2nd, 2009, 02:47 PM	#2
kkim Join Date: Nov 2008 Posts: Too much.	mostly for sound. The low end might suffer a bit as the lower back pressure by the slip on would make the bike run even leaner at the bottom end, which it already does, stock. shimming the needles will get you power on the bottom end once you are completed with your exhaust/intake selections.

March 2nd, 2009, 02:57 PM	#3
mista350z ninjette.org member Name: John Location: The OC Join Date: Feb 2009 Motorcycle(s): 08 CBR600rr, 08 Ninja 250r - sold Posts: 81	Thanks Kelly. If I just want to add the slip on for sound and looks. Will It affect the performance tremendously or can I live with it?

March 2nd, 2009, 02:58 PM	#4
kkim Join Date: Nov 2008 Posts: Too much.	what does the manufacturer say about their slip on and jetting?

March 2nd, 2009, 02:59 PM	#5
mista350z ninjette.org member Name: John Location: The OC Join Date: Feb 2009 Motorcycle(s): 08 CBR600rr, 08 Ninja 250r - sold Posts: 81	huh? I am a complete noob.

March 2nd, 2009, 03:06 PM	#6
kkim Join Date: Nov 2008 Posts: Too much.	Do they recommend you do anything to the bikes jetting(fuel mixture) if you install their slipon? Most manufactures will have the installation instructions posted somewhere on their website. I suggest you read the product installation instructions and see what they recommend as far as having to adjust your jetting to compensate for their slip on.