Laguna seca exhaust?

nikeeric86 · February 18th, 2015, 10:21 AM

Want to do a track day at Laguna Seca this year and it has a 90 decibal sound limit. Those with aftermarket exhausts did you have any problems?

I currently have the stock pipe but my right heel hits the front of the can. Was thinking of getting a cheap small slip on (any suggestions that doesnt get in the way) or just getting a full system (jardine gp-1) and jetting the carbs.

Alex · February 18th, 2015, 11:19 AM

paging @rojoracing53

(I'm pretty sure Jason has had his 250 with a LV exhaust at Laguna)

rojoracing53 · February 18th, 2015, 11:35 AM

Get the full Leo & and Dynojet jet kit and run the Exhuast with the open insert. You'll gain a noticeable about of throttle responce and power and have zero problems with sound. My bike sounds loudish in the pits but it doesn't really get any loader on track so it's deceptivly quite. The full Leo street system comes with two inserts, the first is highly restrictive and may possible make the most power, back pressure is important. The second insert is just strait through but reduces the dia of the exhaust hole, this gets you good sound and good power, I use this one. The third option is no insert, this will make the bike stupid loud and kill a noticeable amount of power so I don't use it, but if annoying the neighbors is your thing then go for it.

There's a video on here somewhere of me at laguna and the beginning of the video has a spec sheet of my whole setup.

Alex · February 18th, 2015, 12:45 PM

Were there any concerns with the sound check, or you were comfortably under with that setup?

rojoracing53 · February 18th, 2015, 12:47 PM

Quote:

Originally Posted by Alex

Were there any concerns with the sound check, or you were comfortably under with that setup?

Never asked, never got asked do idk.

nikeeric86 · February 18th, 2015, 12:52 PM

Hmm i looked at the organizers website and it said you go through a testing station and they will also monitor the sound levels on the track. this is with keigwins

rojoracing53 · February 18th, 2015, 01:00 PM

Well let me put it to you this way, if you buy the full system and they have an issue with the open insert. Then put in the quite insert and you'll be perfect with no loss of power.

nikeeric86 · February 18th, 2015, 01:02 PM

cool, does the exhaust interfere with your foot at all?

Alex · February 18th, 2015, 01:03 PM

I haven't been there when they had a pre-test available; they usually just monitor from the booth near Turn 5. Bikes that are near the limit need to roll off (or at least not roll on at full revs) when accelerating out of 5. Some R6's with completely stock exhaust can break the limit there, so it's not a terribly high measurement before needing to be worried.

rojoracing53 · February 18th, 2015, 01:07 PM

Here's the video, it gets good at the halfway mark with some closer battling with the 600's.

Link to original page on YouTube.

alex.s · February 18th, 2015, 01:10 PM

they have sound limits at jennings too. just roll a little off as you pass the microphone thing.

rojoracing53 · February 18th, 2015, 01:12 PM

Quote:

Originally Posted by nikeeric86

cool, does the exhaust interfere with your foot at all?

No and my pegs are about 4" further back and only an inch of two higher then stock.

nickjpass · February 18th, 2015, 02:23 PM

Quote:

Originally Posted by alex.s

they have sound limits at jennings too. just roll a little off as you pass the microphone thing.

Not to nit pick (how is that spelled?) but don't some bikes make little pops and gurgles when you roll off? Wouldn't that be louder?

alex.s · February 18th, 2015, 02:29 PM

Quote:

Originally Posted by nickjpass

Not to nit pick (how is that spelled?) but don't some bikes make little pops and gurgles when you roll off? Wouldn't that be louder?

just close it half way, not all the way.

gogoKawi · February 18th, 2015, 04:05 PM

Which Leo Vince exhaust are you referring to? When I was looking at exhausts, there were the GP and EVO.

BoBO · February 20th, 2015, 09:25 PM

My standard Area P w/ silencer failed. You have better chances passing with stock exhaust. I few of my friends failed with stock exhaust on their 600's. I only go there on my miata.

Foxrider64 · February 24th, 2015, 02:42 PM

I've got the full Leo Vince pipe on mine- I run the quieter baffle because I haven't had time to tune it properly for the open baffle.

At Jennings there is a 104 limit and they didn't even raise an eyebrow at me going past at full throttle.

Alex · February 24th, 2015, 02:48 PM

Laguna's limit is much tighter, at 92 dB. A change of 10 dB doubles (or halves) the perceived loudness, so you can be more than twice as loud at Jennings.

stimpee · February 24th, 2015, 07:30 PM

Quote:

Originally Posted by Foxrider64

I've got the full Leo Vince pipe on mine- I run the quieter baffle because I haven't had time to tune it properly for the open baffle.

At Jennings there is a 104 limit and they didn't even raise an eyebrow at me going past at full throttle.

Do you have the LV One Evo exhaust or the GP Corsa on your ninja?

Trying to decide what to do with my bike. (This is Steve, Kyle's dad from Homestead...)

Foxrider64 · February 25th, 2015, 10:41 AM

Quote:

Originally Posted by stimpee

Do you have the LV One Evo exhaust or the GP Corsa on your ninja?

Trying to decide what to do with my bike. (This is Steve, Kyle's dad from Homestead...)

Hey Steve!

I have the GP Corsa.

According to the LV site the DB rating is 98 but I have not tested it myself and the site only has the slip on listed so I am not sure if that is the full system- or which baffle that was.

The Red Scourge · February 25th, 2015, 01:21 PM

Quote:

Originally Posted by rojoracing53

Here's the video, it gets good at the halfway mark with some closer battling with the 600's.

Link to original page on YouTube.

Whaaaat? I should've known this was a Ninjette.org member. I ran across this on Youtube and thought it was so awesome I posted it to my Facebook page. Great video!

rojoracing53 · February 25th, 2015, 01:36 PM

Quote:

Originally Posted by The Red Scourge

Whaaaat? I should've known this was a Ninjette.org member. I ran across this on Youtube and thought it was so awesome I posted it to my Facebook page. Great video!

Thanks. I haven't made much in the way of videos for the ninja lately since it is my daily commuter and I don't want anything happening to it. The other thing is I get kinda bored with the 250 at the track so the thrill isn't there. The main focus these days is Mtb racing so most videos I post these days are on bike without motors.

If you did through my channel you'll see a videos from the same day but on a borrowed 636. That videos it much faster.

mthree2b · March 14th, 2015, 12:45 PM

You mentioned the Jardine GP-1, but I'm pretty sure it will be way too loud for Laguna Seca, I had it on my 250 for a day and I don't remember the numbers, but I was told it was the loudest bike out there, as in +97db. Jardine makes a quiet insert, but it's not compatible with the 250 pipe. Also, I don't think it offers enough back pressure to improve power without significant mods either.

nikeeric86 · June 1st, 2016, 06:49 AM

So i just put on a full leo vince exhaust i got from a member here. I want to back to Laguna this month but this exhaust is loud! It didnt come with any inserts either. is there a simple way to fabricate one?

mthree2b · June 1st, 2016, 07:30 AM

The quiet insert on my Leo exhaust is pretty simple. If you have some basic metal fabrication skills you could do it. I'll try to remember to take some pictures and measurements

nikeeric86 · June 1st, 2016, 05:47 PM

Thanks that would be great, i know a guy that works with sheet metal.

RacinNinja · June 1st, 2016, 05:56 PM

Have you considered repacking the exhaust? The old stuff may be worn out or blown out or burned. It certainly couldn't hurt and may reduce the noise.

nikeeric86 · June 1st, 2016, 10:44 PM

Oooh i didnt know they could be repacked, i'll look up how's it done.

i've also seen pictures of guys running an exhaust tip that points away from the sound traps, anyone know how effective those are?

February 18th, 2015, 10:21 AM	#1
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	Laguna seca exhaust? Want to do a track day at Laguna Seca this year and it has a 90 decibal sound limit. Those with aftermarket exhausts did you have any problems? I currently have the stock pipe but my right heel hits the front of the can. Was thinking of getting a cheap small slip on (any suggestions that doesnt get in the way) or just getting a full system (jardine gp-1) and jetting the carbs. __________________________________________________

February 18th, 2015, 11:19 AM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	paging @rojoracing53 (I'm pretty sure Jason has had his 250 with a LV exhaust at Laguna) __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

February 18th, 2015, 12:45 PM	#4
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Were there any concerns with the sound check, or you were comfortably under with that setup? __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

February 18th, 2015, 12:52 PM	#6
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	Hmm i looked at the organizers website and it said you go through a testing station and they will also monitor the sound levels on the track. this is with keigwins __________________________________________________

February 18th, 2015, 01:02 PM	#8
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	cool, does the exhaust interfere with your foot at all? __________________________________________________

February 18th, 2015, 11:35 AM	#3
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	Get the full Leo & and Dynojet jet kit and run the Exhuast with the open insert. You'll gain a noticeable about of throttle responce and power and have zero problems with sound. My bike sounds loudish in the pits but it doesn't really get any loader on track so it's deceptivly quite. The full Leo street system comes with two inserts, the first is highly restrictive and may possible make the most power, back pressure is important. The second insert is just strait through but reduces the dia of the exhaust hole, this gets you good sound and good power, I use this one. The third option is no insert, this will make the bike stupid loud and kill a noticeable amount of power so I don't use it, but if annoying the neighbors is your thing then go for it. There's a video on here somewhere of me at laguna and the beginning of the video has a spec sheet of my whole setup.

February 18th, 2015, 01:00 PM	#7
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	Well let me put it to you this way, if you buy the full system and they have an issue with the open insert. Then put in the quite insert and you'll be perfect with no loss of power.

February 18th, 2015, 01:03 PM	#9
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	I haven't been there when they had a pre-test available; they usually just monitor from the booth near Turn 5. Bikes that are near the limit need to roll off (or at least not roll on at full revs) when accelerating out of 5. Some R6's with completely stock exhaust can break the limit there, so it's not a terribly high measurement before needing to be worried. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

February 18th, 2015, 01:07 PM	#10
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	Here's the video, it gets good at the halfway mark with some closer battling with the 600's. Link to original page on YouTube.

February 18th, 2015, 01:10 PM	#11
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	they have sound limits at jennings too. just roll a little off as you pass the microphone thing. __________________________________________________

February 18th, 2015, 04:05 PM	#15
gogoKawi ninjette.org sage Name: Dre Location: DMV Join Date: Aug 2009 Motorcycle(s): 2014 Ninja 300, 2008 ZX6, 2011 Ninja 1000 Posts: 622	Which Leo Vince exhaust are you referring to? When I was looking at exhausts, there were the GP and EVO.

February 20th, 2015, 09:25 PM	#16
BoBO ninjette.org guru Name: Genesis Location: Paradise Valley Village, AZ Join Date: Jan 2014 Motorcycle(s): SC28 Fireblade Posts: 463	My standard Area P w/ silencer failed. You have better chances passing with stock exhaust. I few of my friends failed with stock exhaust on their 600's. I only go there on my miata. __________________________________________________ 94 900RR 04 BMW Z4 2.5 M Package 01 R170 AMG Sport Package

February 24th, 2015, 02:42 PM	#17
Foxrider64 Hello Moto Name: Alex Location: Ft. Myers Join Date: Mar 2013 Motorcycle(s): 1975 RD350; 2001 KX125; 2003 Z1000; 2003 KDX50; 2009 ZX6R; 2011 Ninja 250R; 2014 KX250F Posts: 352	I've got the full Leo Vince pipe on mine- I run the quieter baffle because I haven't had time to tune it properly for the open baffle. At Jennings there is a 104 limit and they didn't even raise an eyebrow at me going past at full throttle.

February 24th, 2015, 02:48 PM	#18
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Laguna's limit is much tighter, at 92 dB. A change of 10 dB doubles (or halves) the perceived loudness, so you can be more than twice as loud at Jennings. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

March 14th, 2015, 12:45 PM	#23
mthree2b ninjette.org newbie Name: Max Location: Portland, OR Join Date: Sep 2013 Motorcycle(s): 09 ninja 250, 03 SV650s Posts: 4	You mentioned the Jardine GP-1, but I'm pretty sure it will be way too loud for Laguna Seca, I had it on my 250 for a day and I don't remember the numbers, but I was told it was the loudest bike out there, as in +97db. Jardine makes a quiet insert, but it's not compatible with the 250 pipe. Also, I don't think it offers enough back pressure to improve power without significant mods either.

June 1st, 2016, 06:49 AM	#24
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	So i just put on a full leo vince exhaust i got from a member here. I want to back to Laguna this month but this exhaust is loud! It didnt come with any inserts either. is there a simple way to fabricate one? __________________________________________________

June 1st, 2016, 07:30 AM	#25
mthree2b ninjette.org newbie Name: Max Location: Portland, OR Join Date: Sep 2013 Motorcycle(s): 09 ninja 250, 03 SV650s Posts: 4	The quiet insert on my Leo exhaust is pretty simple. If you have some basic metal fabrication skills you could do it. I'll try to remember to take some pictures and measurements

June 1st, 2016, 05:47 PM	#26
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	Thanks that would be great, i know a guy that works with sheet metal. __________________________________________________

June 1st, 2016, 05:56 PM	#27
RacinNinja Vintage Screwball Name: B Location: Washington Join Date: Feb 2016 Motorcycle(s): 2011 Ninja 250, 2008 Ninja 250, 2019 KTM 1290SDR, 2017 FZ10 Posts: A lot. MOTM - Mar '16	Have you considered repacking the exhaust? The old stuff may be worn out or blown out or burned. It certainly couldn't hurt and may reduce the noise. __________________________________________________ Goin' fast on slow bikes!

June 1st, 2016, 10:44 PM	#28
nikeeric86 ninjette.org member Name: eric Location: lompoc, ca Join Date: Feb 2013 Motorcycle(s): 1992 fzr600 2010 ninja 250 2006 cbr600rr Posts: 71	Oooh i didnt know they could be repacked, i'll look up how's it done. i've also seen pictures of guys running an exhaust tip that points away from the sound traps, anyone know how effective those are? __________________________________________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Laguna Seca	alex.s	Ride Reports	1	July 22nd, 2013 02:36 PM
I'm going to Laguna Seca!	Darling Ninja	General Motorcycling Discussion	61	July 26th, 2012 09:39 PM
Laguna Seca	ninjaprof	General Motorcycling Discussion	2	July 23rd, 2011 06:27 PM
[superbikeplanet.com] - Laguna Seca Names Official Helmet of Laguna	Ninjette Newsbot	Motorcycling News	0	April 27th, 2011 12:40 PM
MotoGP at Laguna Seca?	Zombiphone	Ride Reports	18	July 27th, 2010 02:35 PM