New BEASTLY exhaust

[mattmosphere88]

I have recently put a new exhaust on my Ninjette. Turns out not too many people have heard of the brand, Delkevic. I wanted to make this post to show that you don't need to spend $400+ for a well-known slip-on like Akrapovic, M4, Yoshimura, or MPG. This exhaust only cost me $200 and sounds like a BEAST.

Enjoy..

Link to original page on YouTube.

[ninja250r81]

i have

popular in the uk

[akima]

MMmm, that's a nice sound. It seems a bit too loud though.

[ninja250r81]

you can get db killer, quiet insert etc for these Delkevic mufflers

[Goom]

I like how it says it's not intended for road use. Pssh! lol This is seriously the first aftermarket that I've heard that sounded sick enough to spend the money. It actually sounds a lot like the Kerker on my CB.

[xSean13]

I've heard of delkevic..I was looking at their exhausts, among many others while doing slip-on research, but went with the danmoto jisu

[MasterCylinder]

Originally Posted by akima

MMmm, that's a nice sound. It seems a bit too loud though.

Too loud? No such thing. Just means people know you're there and are less likely to run you over.

[mattmosphere88]

Originally Posted by MasterCylinder

Too loud? No such thing. Just means people know you're there and are less likely to run you over.

Totally agree. That's why I was completely stoked when I found out that it was louder than expected. Dumbass drivers may not be able to see our ninjettes, so why not let them hear instead?

[dubojr1]

ok, I'll say it...

Loud pipes DON"T save lives, they just piss your neighbor off.

[mattmosphere88]

I beg to differ. My exhaust isn't quite as loud as a Harley but people usually know that they are around even when they can't see them, therefore drivers are likely to be more alert. My MSF instructor even agreed that they can increase driver's attentiveness but can make your engine run hotter.

[dubojr1]

Sorry but that guy is an idiot...

No need in arguing this subject again. Here's some additional reading. Majority does agree that loud pipes don't save lives. The rider's awareness is the most important IMO.

http://www.ninjette.org/forums/showt...ght=loud+pipes

[mattmosphere88]

I completely agree that a rider's awareness and second nature to react is key, but I don't see the harm in making a little extra noise.

Don't be so quick to judge. That "idiot" instructor taught me how to be safe rider and has been a motorcycle cop for over 20 years. I can't speak for him, but I'd like to think he has some wisdom on the subject.

[dubojr1]

I'd like to hear his justification for exhaust making the bike run hotter then...

I just think loud exhausts (like yours) are obnoxious. I'm sure you wear ear plugs too right?

[akima]

Originally Posted by dubojr1

I'd like to hear his justification for exhaust making the bike run hotter then...

I was wondering that too.

[mattmosphere88]

Originally Posted by dubojr1

I just think loud exhausts (like yours) are obnoxious.

Then you must also think Harleys and classic cars with 454's and longtube headers sound obnoxious too, right?

To each his own.

I think you misinterpreted the sentence about the bike running hotter. He mentioned that as a trade-off, as in people will be more alert around you with a loud pipe installed but the engine can run hotter.

[akima]

^ I was wondering how a loud exhaust could make the engine hotter. With my basic understanding of the engine I can't picture any reason for a heat increase.

[dubojr1]

If they are on the street at not at the track with the over bearing exhaust note....yes

Every man loves the classic cars but those cars can have what ever "headers" they choose as long as that add a thing called a muffler...



Final note: An after-market exhaust will NOT make your bike run any hotter unless you do not tune it properly.

oh, and no word on those ear plugs huh?

[dubojr1]

Originally Posted by akima

^ I was wondering how a loud exhaust could make the engine hotter. With my basic understanding of the engine I can't picture any reason for a heat increase.

I'd love to hear his theory... Maybe I'm wrong (doubt it) but I wouldn't be afraid to admit it.

[mattmosphere88]

Oh I see. I'm not sure about that either. I was always told the more backpressure you have the hotter the engine, so I assume it was in relation to that.

[dubojr1]

Originally Posted by mattmosphere88

Oh I see. I'm not sure about that either. I was always told the more backpressure you have the hotter the engine, so I assume it was in relation to that.

I'm pretty sure that's incorrect also...

[dubojr1]

Matt just give it up man... Your exhaust is LOUD and rude and your instructor feed you bad info. Cut your loses man. It really isn't that big of deal.

[mattmosphere88]

I never intended this to be an argument, I just wanted to share a little clip of my exhaust and save people some money.

And I'm pretty sure I'm right about backpressure...

http://www.aa1car.com/library/exhaust_backpressure.htm
"The classic symptoms of too much backpressure include things like a lack of high speed power, poor fuel economy and even overheating. Anything that backs up exhaust pressure into the engine will also back up heat."

[akima]

^ Is there are direct correlation between an increase in noise and an increase in back pressure? I figure there isn't and in which case you can get a noisy exhaust that maintains the same level of back pressure as the stock ninjette exhaust and therefore (according to the back pressure-heat ideas you linked too) no difference in engine heat would be observed.

Edit: I don't know much about this stuff btw: just thinking out loud. No idea if you're right or wrong! It just doesn't sit well with in my mind with the knowledge I already have that's all.

[massacremasses]

except thats the opposite. Youre opening up your exhaust creating LESS back pressure. I dont care about the argument I just wanted to point that out.

[TnNinjaGirl]

The correlation should be: the increase in noise, decrease in back pressure.

The loud sound you are hearing is the amount of air coming out of the exhaust. The more air, the more noise. Also, the more air that can flow, the lower the back pressure.

EDIT: Justin beat me to it. I feelingz r hurt.

[massacremasses]

Originally Posted by TnNinjaGirl

The correlation should be: the increase in noise, decrease in back pressure.

The loud sound you are hearing is the amount of air coming out of the exhaust. The more air, the more noise. Also, the more air that can flow, the lower the back pressure.

EDIT: Justin beat me to it. I feelingz r hurt.

haha well you had a beautiful explanation so you get points for that

[TnNinjaGirl]

I like loud exhausts.

[massacremasses]

me too.

but I wear earplugs.

[choneofakind]

The way a free flowing exhaust will make your engine run hotter is if you don't do any carb tuning at all after opening up the exhaust, and the bike is running lean.

Whatever your view is on the loud pipes saving lives thing, wear earplugs whenever you ride a motorcycle. It doesn't matter what exhaust system you have, wear earplugs. They cut wind noise (which is a god send) and from my experience, make hearing your own bike easier because the really cut the high volume over-load, which makes differentiating between noises easier. Also, no matter how "quiet" a helmet is, wearing earplugs in that helmet will always be quieter than just wearing that helmet.
[/rant]

[massacremasses]

+1 for earplugs. Ill never go back to not wearing any.

[the big mike]

Back on topic: I LLLLOOOOVVVVEE this exhaust, never heard of it and will do some research, thx man
It even looks good too

[mattmosphere88]

Originally Posted by TnNinjaGirl

The correlation should be: the increase in noise, decrease in back pressure.

That makes sense. Thanks for chiming in. Yeah, this slip-on is much more open than the stock, therefore more airflow and less backpressure.

What earplugs would you guys recommend? I own a pair right now but they don't fit very well and I always find myself pawing at my helmet trying to adjust them but can't

[akima]

Originally Posted by mattmosphere88

I own a pair right now but they don't fit very well and I always find myself pawing at my helmet trying to adjust them but can't

You're like me! You have paws

[mattmosphere88]

Originally Posted by the big mike

Back on topic: I LLLLOOOOVVVVEE this exhaust, never heard of it and will do some research, thx man
It even looks good too

Thanks Mike!

[massacremasses]

I use free ones from work.. lol

[MasterCylinder]

Originally Posted by dubojr1

ok, I'll say it...

Loud pipes DON"T save lives, they just piss your neighbor off.

You may disagree but from my experiences when I previously had a GSXR600 k7 I noticed a HUGE difference in people "trying" to run me over when my exhaust was loud versus when it was quiet.

I think from about k5 onward Suzuki started including a butterfly valve in the exhaust to help with lower end torque but kept the exhaust fairly quiet. When I first got the bike there were several occasions when I was almost run over from people changing lanes because they didn't check their mirrors or even glance over to check before changing lanes. Thankfully I was paying attention. Now when I took out that butterfly valve there was only maybe one instance where one person almost hit me in that time period. People could hear me and in fact would change lanes if I came up behind them (because they were not doing the speed limit), again, versus when that valve was in it. You cannot tell me there is no correlation there.


Anyways, back on topic.

[mattmosphere88]

^ Mine are from work too but the way my helmet pushes on my head it makes them uncomfortable. I wasn't sure if you had special ones or something. I think I need to get some fitted ones.

[choneofakind]

I use earplugs like these:

I pulled them off the cord, and snipped the smallest level off the end so they aren't jammed too far into my room.

[CZroe]

It looks wide enough to be no different than a straight pipe. Does it add any backpressure at all?!

Originally Posted by mattmosphere88

I completely agree that a rider's awareness and second nature to react is key, but I don't see the harm in making a little extra noise.

Don't be so quick to judge. That "idiot" instructor taught me how to be safe rider and has been a motorcycle cop for over 20 years. I can't speak for him, but I'd like to think he has some wisdom on the subject.

You don't see the harm in ruining your hearing and making others hate sharing the road with bikes? Oooo-Kay.

Originally Posted by mattmosphere88

Then you must also think Harleys and classic cars with 454's and longtube headers sound obnoxious too, right?

Uhh, you think others don't? They made a whole South Park episode about it!

Originally Posted by mattmosphere88

I never intended this to be an argument, I just wanted to share a little clip of my exhaust and save people some money.

Then you should have known better than to bring up the perpetual "loud pipes save lives" argument. It always results in this!

Loud pipes get attention, yes, but it isn't always good attention and can do more harm than good. The truth is that loud pipes sound good to those who like loud engines and annoy everyone else.

[mattmosphere88]

Why are you pointing the finger at me? There are several others in this thread that share the same opinions as me and you choose to single me out?

When did I come to the conclusion that loud pipes save lives? I just like to hear the throttle when I twist it; the stock muffler doesn't give that.

I'd also like to point out that the video of my rev is filmed in a 2-door garage with the doors closed. The echo makes the exhaust sound louder than it really is.

Again, to each his own. I have my opinions, you have yours.