Ninja 250 after market exhausts or slip ons?

Sungfooo · November 8th, 2010, 12:27 AM

Hi guys , I was just wondering does anyone have any opinions on an after market exhaust/slip on for a 2008 + ninja 250 ?

First off which do you think is better a full exhaust or just a slip on , and why ?

Ive heard that a full exhaust can give you more hp , anyone know anything about that?

also what are some good exhausts out there, I like the yoshimura , but does anyone else have any other suggestions?

thanks

-Sunny

kkim · November 8th, 2010, 12:35 AM

full exhausts all the way if you want max power out of your ninja.

I'm partial to AreaP exhausts.

Cuongism · November 8th, 2010, 01:07 AM

+1 full exhausts will add hp (I'll try to look it up, but from what I remember yoshi is about 2-3 hp while area p is 4-5 hp). Slip ons will only add sound which isn't worth $200-$500.

lux · November 8th, 2010, 12:47 PM

I have a LeoVince and like it.

Boom King · November 8th, 2010, 01:22 PM

Forgive my newbie ignorance if this has already been mentioned in other threads but if you install an after market exhaust whether it is slip on or full, do you also have to re-jet the bike and shim the needles? Thought that I've seen this mentioned in other threads. I could be wrong.

kkim · November 8th, 2010, 02:00 PM

with a slip on... maybe, but with a full system, definitely.

w/ slip ons, you never know how lean it will make your bike run w/ the stock jetting, so as a precaution I would say to rejet/shim.

personally, I would shim my bike even if it were left stock.

Boom King · November 8th, 2010, 02:51 PM

I'd consider an after market exhaust and rejet if I had the money. Reading the posts from others who have done it and the performance gains they've experienced makes it tempting. In the end though, I'm gonna leave the bike stock. The other factor I have to consider is that around here, the insurance companies will not insure a modified bike. Even lowering a bike from its stock height so that you can flat foot would be enough for an insurance company here to deny you if they are anal enough. Anyways, totally different topic altogether.

SPG · November 8th, 2010, 02:55 PM

I've been pretty happy with the Tyga on my track bike. Not super quiet, but you can really feel the power difference. A guy who races here in the Pac NW just put his Newgen/Tyga bike on the dyno, and posted the report here:

http://racingorder.com/2010/10/tyga-...-dyno-results/

Awsome price for a full system!

-Sean

jezebel · July 2nd, 2011, 04:23 PM

I could be wrong here but I have a 2 bros slip on and what I read is that it adds about 2hp. I definitely notice the acceleration is faster, and I remember a poster on another forum running a series of before and after tests with a slip on vs stock and it shaved the acceleration time down considerably.

rusninja · July 2nd, 2011, 07:45 PM

The akrapovic is a sexy exhaust but it only comes in slip on form. :[

November 8th, 2010, 12:27 AM	#1
Sungfooo ninjette.org member Name: Sunny Location: Bay Area, CA Join Date: Nov 2010 Motorcycle(s): A beautiful BLACK 2008 ninja 250 Posts: 24	Ninja 250 after market exhausts or slip ons? Hi guys , I was just wondering does anyone have any opinions on an after market exhaust/slip on for a 2008 + ninja 250 ? First off which do you think is better a full exhaust or just a slip on , and why ? Ive heard that a full exhaust can give you more hp , anyone know anything about that? also what are some good exhausts out there, I like the yoshimura , but does anyone else have any other suggestions? thanks -Sunny

July 2nd, 2011, 07:45 PM	#10
rusninja Ninjette wanabe :D Name: Ruslan Location: San Jose Join Date: Apr 2011 Motorcycle(s): white 300 :D Posts: A lot.	The akrapovic is a sexy exhaust but it only comes in slip on form. :[ __________________________________________________ VROOOM vrooom >.>

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November 8th, 2010, 12:35 AM	#2
kkim Join Date: Nov 2008 Posts: Too much.	full exhausts all the way if you want max power out of your ninja. I'm partial to AreaP exhausts.

November 8th, 2010, 01:07 AM	#3
Cuongism ninjette.org certified postwhore Name: Cuong Location: San Diego Join Date: Jul 2010 Motorcycle(s): 2008 Ninja 250r, 2007 Daytona 675 Posts: A lot.	+1 full exhausts will add hp (I'll try to look it up, but from what I remember yoshi is about 2-3 hp while area p is 4-5 hp). Slip ons will only add sound which isn't worth $200-$500.

November 8th, 2010, 12:47 PM	#4
lux ninjette.org guru Name: lux Location: NY Join Date: Jul 2010 Motorcycle(s): 2010 Ninja 250R Posts: 306	I have a LeoVince and like it.

November 8th, 2010, 01:22 PM	#5
Boom King So, where's the reverse? Name: Anson Location: Ontario, Canada Join Date: Nov 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.	Forgive my newbie ignorance if this has already been mentioned in other threads but if you install an after market exhaust whether it is slip on or full, do you also have to re-jet the bike and shim the needles? Thought that I've seen this mentioned in other threads. I could be wrong.

November 8th, 2010, 02:00 PM	#6
kkim Join Date: Nov 2008 Posts: Too much.	with a slip on... maybe, but with a full system, definitely. w/ slip ons, you never know how lean it will make your bike run w/ the stock jetting, so as a precaution I would say to rejet/shim. personally, I would shim my bike even if it were left stock.

November 8th, 2010, 02:51 PM	#7
Boom King So, where's the reverse? Name: Anson Location: Ontario, Canada Join Date: Nov 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.	I'd consider an after market exhaust and rejet if I had the money. Reading the posts from others who have done it and the performance gains they've experienced makes it tempting. In the end though, I'm gonna leave the bike stock. The other factor I have to consider is that around here, the insurance companies will not insure a modified bike. Even lowering a bike from its stock height so that you can flat foot would be enough for an insurance company here to deny you if they are anal enough. Anyways, totally different topic altogether.

November 8th, 2010, 02:55 PM	#8
SPG ninjette.org member Name: Sean Location: Seattle Join Date: Aug 2010 Motorcycle(s): 250 Ninjette Posts: 94	I've been pretty happy with the Tyga on my track bike. Not super quiet, but you can really feel the power difference. A guy who races here in the Pac NW just put his Newgen/Tyga bike on the dyno, and posted the report here: http://racingorder.com/2010/10/tyga-...-dyno-results/ Awsome price for a full system! -Sean

July 2nd, 2011, 04:23 PM	#9
jezebel ninjette.org member Name: Canada Location: Vancouver Join Date: Jun 2011 Motorcycle(s): 2008 Ninja 250r Posts: 62	I could be wrong here but I have a 2 bros slip on and what I read is that it adds about 2hp. I definitely notice the acceleration is faster, and I remember a poster on another forum running a series of before and after tests with a slip on vs stock and it shaved the acceleration time down considerably.