Cutting the stock pipe

ladyrocket · January 20th, 2011, 06:40 PM

Hey guys,
I'm thinking about cutting the stock exhaust on my bike. I want it to be louder and sounds less like a sewing machine. Any thoughts, suggestions, comments?

scotty · January 20th, 2011, 06:42 PM

I wouldn't cut it off. You could always take it off. The muffler will come off from the pipe, but if you want it louder why don't you just but a slip on exhaust?

KURT · January 20th, 2011, 07:43 PM

Megan,

Sent you a pm...

JMcDonald · January 20th, 2011, 08:34 PM

I wouldn't recommend it. It is hideously loud :P, and won't help performance. But yes, you can easily just take off the muffler and leave the pipe in place to see.

ladyrocket · January 20th, 2011, 11:22 PM

I dont really want to do a slip on for two reasons 1) expensive 2) having to rejet the carb, as I have read many posts saying its a must with an aftermarket pipe

To clarify I was looking at pulling the baffles out and putting in a perforated pipe packed with fiberglass and cutting the muffler to make it shorter

HKr1 · January 21st, 2011, 06:15 AM

It's easy to do. We cut the end off, installed a 1 1/2" baffle. Then welded it back together. Sounds real nice

Cost like 30 bucks in parts........

Bueller999 · January 21st, 2011, 06:20 AM

You don't need to rejet for a slip on, they don't flow that much better, they just make more noise.
Obnoxiously loud exhausts are triggering repressive legislation across the nation and will eventually do away with all after market exhausts.

rockNroll · January 21st, 2011, 07:08 AM

original mufflers seem pretty cheap, i'd say get another pipe and then go to town on it. I'd warn though, chances of needing a rejet from a hacked stock can are probably just as high as from installing a slip on.

a chick hacking her pipe ... just somethin' sexy about that

JMcDonald · January 21st, 2011, 07:40 AM

Quote:

Originally Posted by ladyrocket

I dont really want to do a slip on for two reasons 1) expensive 2) having to rejet the carb, as I have read many posts saying its a must with an aftermarket pipe

To clarify I was looking at pulling the baffles out and putting in a perforated pipe packed with fiberglass and cutting the muffler to make it shorter

Doing that with the stock exhaust would be the same as having a slip-on, and in either case while a re-jet isn't *necessary*, the exhaust might exacerbate the relatively gutless lower end of the powerband (say, 2-8k) due to it running even slightly leaner. But, from what I hear at least, you might pick up a few ponies up top.

But yeah, what you are asking has been done and if you have the fabricating skills can be a simple, cheap way to upgrade the exhaust.

HKr1 · January 21st, 2011, 03:02 PM

Should re-Jet even with the stock pipe

Getting that stock baffle out, you loose some compression braking(wife hated that). You need to cut 1/8 to a 1/4" in, so the baffle will slide out. What a butt plug that thing is

HKr1 · January 21st, 2011, 03:08 PM

Oh, dont forget to pull the so called "catalytic converter" out

Den · January 21st, 2011, 05:12 PM

http://www.2fiddy.com/2008/07/shortie-exhaust-homemade/

I reckon this is what you want to do

ladyrocket · January 21st, 2011, 11:28 PM

thanks guys!
sounds like hacking up my original and buying a slip on is about the same (only difference is the $$$$), gunna bid on a LOR and if I get it for a good price I will just get that and if not looks like doctoring up the pipe!
I will let you guys know how it goes!

kkim · January 22nd, 2011, 01:48 AM

why do you want the bike louder?

randomwalk101 · January 22nd, 2011, 05:32 AM

Quote:

Originally Posted by kkim

why do you want the bike louder?

Loud pipe saves lives!!

TenaciousD · January 22nd, 2011, 07:33 AM

Just removing the intake snorkel gives the bike a nice growl. If you haven't done that yet, try it. It definitely reduces the sewing machine factor. I feel no need to mess with my exhaust.

KURT · January 22nd, 2011, 07:54 AM

Quote:

Originally Posted by ladyrocket

thanks guys!
sounds like hacking up my original and buying a slip on is about the same (only difference is the $$$$), looks like doctoring up the pipe!
I will let you guys know how it goes!

And paint it black!

HKr1 · January 22nd, 2011, 02:31 PM

Quote:

Originally Posted by ladyrocket

gunna bid on a LOR and if I get it for a good price I will just get that and if not looks like doctoring up the pipe!
I will let you guys know how it goes!

Whats LOR?

Den · January 22nd, 2011, 02:55 PM

Quote:

Originally Posted by HKr1

Whats LOR?

Level One Racing.

ladyrocket · January 24th, 2011, 08:29 PM

Well I decided to go big and just do it all. I bought a LOR exhaust, factory pro stage 3 jet kit, and K&N Pod air filters. Im going to remove the air box so i dont have to deal with it if i have to readjust the carbs after re-jetting.

Next project, big boy tires!

Hope I dont break a nail!!

JMcDonald · January 24th, 2011, 09:15 PM

Haha niiiccce!!

scotty · January 24th, 2011, 09:26 PM

Sweet! Make sure to read all the DIY threads here. Tons of good info!

January 20th, 2011, 06:40 PM	#1
ladyrocket ladyrocket Name: Megan Location: Cali Join Date: Dec 2010 Motorcycle(s): 09 Ninja 250R Posts: 84 Blog Entries: 1	Cutting the stock pipe Hey guys, I'm thinking about cutting the stock exhaust on my bike. I want it to be louder and sounds less like a sewing machine. Any thoughts, suggestions, comments?

January 20th, 2011, 06:42 PM	#2
scotty ninjette.org certified postwhore Name: Scott Location: Carlise Ohio Join Date: Apr 2010 Motorcycle(s): Yahama v star 650 classic Posts: A lot.	I wouldn't cut it off. You could always take it off. The muffler will come off from the pipe, but if you want it louder why don't you just but a slip on exhaust? __________________________________________________

January 20th, 2011, 08:34 PM	#4
JMcDonald ninjette.org sage Name: J Location: Oklahoma Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771	I wouldn't recommend it. It is hideously loud :P, and won't help performance. But yes, you can easily just take off the muffler and leave the pipe in place to see. __________________________________________________ Factory Pro Jet Kit, K&N R-0990 Pod Filter, Sportisi VR Black Exhaust, BRT TIS Ignition, White Paint, and 16/41 Sprockets. Soon: Maybe a 37T Rear Sprocket if I get things running like I'd hoped.

January 21st, 2011, 07:08 AM	#8
rockNroll . Name: rock Location: greenville, south carolina Join Date: Jun 2009 Motorcycle(s): black Posts: A lot.	original mufflers seem pretty cheap, i'd say get another pipe and then go to town on it. I'd warn though, chances of needing a rejet from a hacked stock can are probably just as high as from installing a slip on. a chick hacking her pipe ... just somethin' sexy about that __________________________________________________ Always get a second opinion because most of these people are makin' this stuff up

January 22nd, 2011, 07:33 AM	#16
TenaciousD ninjette.org member Name: Kevin Location: Tampa Join Date: Jun 2010 Motorcycle(s): 2009 250R Posts: 230	Just removing the intake snorkel gives the bike a nice growl. If you haven't done that yet, try it. It definitely reduces the sewing machine factor. I feel no need to mess with my exhaust. __________________________________________________ Kevin 2009 Ninja 250R

January 20th, 2011, 07:43 PM	#3
KURT Resident Old Guy Name: Kurt Location: Goodyear, Az Join Date: Jul 2010 Motorcycle(s): sold Posts: 264	Megan, Sent you a pm...

January 20th, 2011, 11:22 PM	#5
ladyrocket ladyrocket Name: Megan Location: Cali Join Date: Dec 2010 Motorcycle(s): 09 Ninja 250R Posts: 84 Blog Entries: 1	I dont really want to do a slip on for two reasons 1) expensive 2) having to rejet the carb, as I have read many posts saying its a must with an aftermarket pipe To clarify I was looking at pulling the baffles out and putting in a perforated pipe packed with fiberglass and cutting the muffler to make it shorter

January 21st, 2011, 06:15 AM	#6
HKr1 IC2(SW) Name: Kerry Location: Pensacola Join Date: Nov 2008 Motorcycle(s): . Posts: A lot.	It's easy to do. We cut the end off, installed a 1 1/2" baffle. Then welded it back together. Sounds real nice Cost like 30 bucks in parts........

January 21st, 2011, 06:20 AM	#7
Bueller999 Oldie but a goodie Name: David Location: Aurora, CO Join Date: Nov 2010 Motorcycle(s): 08 Ninja 650r, 06 SV 650 race, 08 250r race, 03 Buell XB9s, 01 KTM 300 EXC Posts: 131	You don't need to rejet for a slip on, they don't flow that much better, they just make more noise. Obnoxiously loud exhausts are triggering repressive legislation across the nation and will eventually do away with all after market exhausts.

January 21st, 2011, 05:12 PM	#12
Den ninjette.org member Name: Denis Location: Brighton, UK Join Date: Apr 2010 Motorcycle(s): '10 250R(sold); '10 ER-6F Posts: 152	http://www.2fiddy.com/2008/07/shortie-exhaust-homemade/ I reckon this is what you want to do

January 21st, 2011, 11:28 PM	#13
ladyrocket ladyrocket Name: Megan Location: Cali Join Date: Dec 2010 Motorcycle(s): 09 Ninja 250R Posts: 84 Blog Entries: 1	thanks guys! sounds like hacking up my original and buying a slip on is about the same (only difference is the $$$$), gunna bid on a LOR and if I get it for a good price I will just get that and if not looks like doctoring up the pipe! I will let you guys know how it goes!

January 22nd, 2011, 01:48 AM	#14
kkim Join Date: Nov 2008 Posts: Too much.	why do you want the bike louder?

January 24th, 2011, 08:29 PM	#20
ladyrocket ladyrocket Name: Megan Location: Cali Join Date: Dec 2010 Motorcycle(s): 09 Ninja 250R Posts: 84 Blog Entries: 1	Well I decided to go big and just do it all. I bought a LOR exhaust, factory pro stage 3 jet kit, and K&N Pod air filters. Im going to remove the air box so i dont have to deal with it if i have to readjust the carbs after re-jetting. Next project, big boy tires! Hope I dont break a nail!!

January 24th, 2011, 09:15 PM	#21
JMcDonald ninjette.org sage Name: J Location: Oklahoma Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771	Haha niiiccce!! __________________________________________________ Factory Pro Jet Kit, K&N R-0990 Pod Filter, Sportisi VR Black Exhaust, BRT TIS Ignition, White Paint, and 16/41 Sprockets. Soon: Maybe a 37T Rear Sprocket if I get things running like I'd hoped.

January 24th, 2011, 09:26 PM	#22
scotty ninjette.org certified postwhore Name: Scott Location: Carlise Ohio Join Date: Apr 2010 Motorcycle(s): Yahama v star 650 classic Posts: A lot.	Sweet! Make sure to read all the DIY threads here. Tons of good info! __________________________________________________

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