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Looks like Delkevic exhausts are available, on their website (Delkevic.us) and on ebay. Look OK, and they say they are LOUD, but I have never heard of them. Been around for 5 years they say.
 

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Found a video of it on a Ninja 650. Not too sure how I feel about the sound but it could just be terrible video quality

 

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Hard to tell with a recording of sound, but I'm thinking that is too loud for a ride of more than, say, about 2 minutes? I know loud sells pipes, but some of us are respectful of neighbors, aging eardrums, and negative comments about motorcyclists.
 

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Looks like Delkevic exhausts are available, on their website (Delkevic.us) and on ebay. Look OK, and they say they are LOUD, but I have never heard of them. Been around for 5 years they say.
I happen to live in Colorado about 30 minutes away from Delkevic office. I am trying to see if I can stop by their office and grab some pics for you guys and maybe get a little more info on their exhausts. If they let me visit, what else would you guys like to know? From their website, it seems like they have quite a few different style exhausts for Z650.
 

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I was literally looking up a bunch a videos for Delkevic exhausts last night. They have a video for the Z650 with the 8" mini on which is what I was originally looking at. Based on a different video though, they said the mini was the loudest out of the ones they sold. Another guy said his friends had the 9" and 14" and they were quieter than the mini. So yea, getting some confirmation on what one is the quietest would be great :p. Im probably gonna get the 14" and hope.
 

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I was literally looking up a bunch a videos for Delkevic exhausts last night. They have a video for the Z650 with the 8" mini on which is what I was originally looking at. Based on a different video though, they said the mini was the loudest out of the ones they sold. Another guy said his friends had the 9" and 14" and they were quieter than the mini. So yea, getting some confirmation on what one is the quietest would be great :p. Im probably gonna get the 14" and hope.
Would you mind sharing the video you were looking at? I was looking at the 8" and 10" ones and I like the carbon fiber 10" one quite a bit. Will go well with my black Z650, I think.
If you are ready to order, you can maybe call them? Their website lists a phone number for them:

I have been looking at these here: Delkevic USA | Motorcycle Mufflers | Slip-on Silencers | Exhaust Systems
http://stores.ebay.com/delkevicus09/?_dmd=1&_nkw=z650

14" carbon looks pretty decent too. I think someone somewhere posted about ordering that one. I seem to lose track of all the videos and links I see..lol
 

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Hi All!
My name is Janielle and I'm the US branch manager for Delkevic. I currently ride a 2014 Ninja 650 with our 8" mini carbon pipe. If there is a dealer sign up, please send me in the right direction, I only got the free sign up when I registered.

I've lived in Denver my whole life and have always loved cars. I got sort of sucked into the motorcycle business and have been running Delkevic for four and half years and been riding for two and half. I'm definitely a fair weather rider and I always joke I'm probably the girliest girl on a bike with a fendi backpack :)

A bit about Delkevic, we started in the UK in 2007 and opened our shop here in 2009. We've since opened shops in Australia and Japan. A lot of people have heard of us and a lot haven't. I always say a good general rule to follow with any aftermarket exhaust is the shorter it is, the louder it will be. The only exception is if the bike has a catalytic converter, then no pipe is too loud IMHO. There isn't an audible sound difference between the 8" and 9" mufflers brand new. If you have a db reader there will be a tiny difference but the construction is the same and the only true difference is 1" of fiberglass packing. The 8/9" mufflers are great for around town riding where you want to be heard and don't have strict noise ordinances. If you ride for longer than an hour or are concerned about sound I would suggest a 13/14" length. The 13/14" mufflers still have a very decent amount of sound with the baffle out and cars will hear you accelerating but they can also be quiet with the clutch in or in low RPM. You have a lot more control over the amount of sound with your riding with the longer mufflers. There are differences in the materials stainless v carbon but the overall loudness follows the length.

Feel free to shoot me a PM or message us through our website. I'm happy to support your forum as a rider and dealer and answer any questions or concerns anyone here has.
Cheers
Janielle
 

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Would you mind sharing the video you were looking at? I was looking at the 8" and 10" ones and I like the carbon fiber 10" one quite a bit. Will go well with my black Z650, I think.
If you are ready to order, you can maybe call them? Their website lists a phone number for them:

I have been looking at these here: Delkevic USA | Motorcycle Mufflers | Slip-on Silencers | Exhaust Systems
http://stores.ebay.com/delkevicus09/?_dmd=1&_nkw=z650

14" carbon looks pretty decent too. I think someone somewhere posted about ordering that one. I seem to lose track of all the videos and links I see..lol
Thia is the one I found and the only one on the Z650
I think it sounds a lot better than the other videos with them on different bikes. Its got a nice growl to it. And truthfully, it doesn't even sound that loud at all so idk if it just depends on the type of bike or not. Sounds horrible on Suzuki bikes Ive noticed.
 

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Hi All!
My name is Janielle and I'm the US branch manager for Delkevic. I currently ride a 2014 Ninja 650 with our 8" mini carbon pipe. If there is a dealer sign up, please send me in the right direction, I only got the free sign up when I registered.

I've lived in Denver my whole life and have always loved cars. I got sort of sucked into the motorcycle business and have been running Delkevic for four and half years and been riding for two and half. I'm definitely a fair weather rider and I always joke I'm probably the girliest girl on a bike with a fendi backpack :)

A bit about Delkevic, we started in the UK in 2007 and opened our shop here in 2009. We've since opened shops in Australia and Japan. A lot of people have heard of us and a lot haven't. I always say a good general rule to follow with any aftermarket exhaust is the shorter it is, the louder it will be. The only exception is if the bike has a catalytic converter, then no pipe is too loud IMHO. There isn't an audible sound difference between the 8" and 9" mufflers brand new. If you have a db reader there will be a tiny difference but the construction is the same and the only true difference is 1" of fiberglass packing. The 8/9" mufflers are great for around town riding where you want to be heard and don't have strict noise ordinances. If you ride for longer than an hour or are concerned about sound I would suggest a 13/14" length. The 13/14" mufflers still have a very decent amount of sound with the baffle out and cars will hear you accelerating but they can also be quiet with the clutch in or in low RPM. You have a lot more control over the amount of sound with your riding with the longer mufflers. There are differences in the materials stainless v carbon but the overall loudness follows the length.

Feel free to shoot me a PM or message us through our website. I'm happy to support your forum as a rider and dealer and answer any questions or concerns anyone here has.
Cheers
Janielle
Thanks for the info! I didn't think we'd be lucky enough to get a manager from delkevic in here. I m not sure if there is a dealer signup however the description in the vendor forum section says "Supporting Vendors Only. If you wish to become a Supporting Vendors, please contact [email protected]". Once again Im not sure if this is for Z650 sellers only or related products as well but its my best guess to your question. I would just use the contact us link at the bottom and ask.

Do you have the info for decibel levels of the exhausts for the Z650? It would be really great if you you post them so we could get a comparison of all the different exhausts and the difference with and without the baffle in.
 

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They have a video for the Z650 with the 8" mini on..
My bad, the video I posted has the 14" one. I thought it was the mini since it was barely reaching out to the wheel. If this forum would let me edit posts other than the last one I made, I would have corrected myself in my original post :p. On the up side, now I have video proof that the exhaust I want sounds good and not very loud.
 

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My bad, the video I posted has the 14" one. I thought it was the mini since it was barely reaching out to the wheel. If this forum would let me edit posts other than the last one I made, I would have corrected myself in my original post :p. On the up side, now I have video proof that the exhaust I want sounds good and not very loud.
Ah, I got super excited because it looked tiny, sounded great and it was carbon fiber. I love the sound of that exhaust! I think I'll have to get one now. I just need to know one thing on my end as well.

All these exhausts say that tuning is not required, means the O2 should plug into the header and it's plug and play without leaning the mixture out. What if we take the baffle out? Does it make it too lean then? So many questions and so little answers. At least we have someone from Delkevic in here to answer all our questions. Can't wait to get it all sorted out and finally put an exhaust on there. That's all I need for now. Everything else can wait till Christmas :grin2:

Before I hit submit reply, I wanted to thank the manager for chiming in, and thank you for sharing the video. I wonder if I can just go to the warehouse and try on all the exhausts, record videos of how they sound and post them all here..lol. Wishful thinking! Oh, and maybe a group buy with some discount for forum members?
 

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I'd be down for a group buy lol. Im 99% sure I'm gonna buy one of these. Super excited about the price and that its in the US. I can actually afford the little extra to get the carbon fiber.
 

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I'd be down for a group buy lol. Im 99% sure I'm gonna buy one of these. Super excited about the price and that its in the US. I can actually afford the little extra to get the carbon fiber.
Awesome! I did talk to the branch manager through email and she said she was out next week. If you're not in a rush, I'll try to swing by their warehouse week after next when she gets back and I can try to talk to her into giving all of us forum members a great deal? I'm 99% sure as well that I'll get a Delkevic :)
 

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If any of you have a shop nearby, it would be nice to see a before and after run on the bike to see how much it messes with the AFR. That, and what gains are had. I'm always leary when companies don't release that info. I wanted to go with the IXIL originally, but never could get them to show any testing.
 

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If any of you have a shop nearby, it would be nice to see a before and after run on the bike to see how much it messes with the AFR. That, and what gains are had. I'm always leary when companies don't release that info. I wanted to go with the IXIL originally, but never could get them to show any testing.
That's a good point. I'll talk to the Delkevic people about gains vs. running lean at all. I think I do have shops nearby so I'll see what I can do about that.

I've been looking at your videos to learn a bunch of stuff. Thank you for some awesome videos! Were you able to get testing results from Akrapovic? I know you did dyno runs before and after. Were you running 1 point lean with baffle in or out?
 

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Akra had their before and after dynos on their site at one point, as did Yoshimura. It was one point lean with baffles out. We didn't test with them in, but it should be less in theory. Once I installed the Rapid Bike and did a basic fuel map, we gained a little more HP through the entire range, and a bit more torque as well.

Here's the dyno's overlaid so you can see the sequential progress that was made. Notice the peak power stays close to the same after the Rapid Bike, but we gained just over 2 more HP in the midrange where it was running lean. He also managed to flatten the torque curve across the board, and remove most of the dips. Throttle response is beast now too.


 

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I saw your video after dyno and it looked like you were really having a blast! I was able to reach out to Delkevic and they said they have dyno sheets for most of their exhausts. Here is the one for their 14" exhaust.

How much did the Rapid Bike and tuning set you back? I've never done dyno runs on a bike so I'm not sure what to expect in terms of cost. Is it cheaper than a car?

Can you have multiple tunes on that Rapid bike? One or baffle in, and one for baffle out?
 

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That's not the same bike as ours.... So basically they haven't tested on the Z650, nor does that show torque or fuel mapping. All I see is a .75hp gain, but at what expense? I'd really like to see a full spec dyno sheet to show where the fuel mixture goes. It would be great to find an alternative manufacturer that gives performance without having to spend a fortune. The Rapid Bike will run you in the neighborhood of $400, maybe less. That's for the EVO, and you DO NOT need a custom dyno. It will tune itself over time, just plug it in, load the included Z650 map, and let it learn. Any future mods, and it will recalibrate. If it senses an issue, it will default to the stock map. And yes, you can also load multiple maps, and with the click of a button, handle bar mounted if you wish, you can go from performance mode to fuel economy mode. You really can't beat it for the price. I went through all the stages of dyno'ing to get information out there for people wanting to mod their bike. No one seems to do the leg work and get actual info and do testing between mods, and I wanted to be different. Most just bolt crap on and hope it goes well. I like information and seeing what I have paid for, and also knowing that the claims that are put on a product are what you actually get.

In the next day or so, I'm going to gear the bike down with the Vortex sprocket and 520 chain set that I have sitting next to me. After that, I will do another dyno to see if any more power is squeezed out from the rotational weight reduction and also if the Rapid Bike has done any fine tuning since adding it. I know the acceleration will increase a bit, and the torque curve will change, but a dyno will not show that by the way it calculates. The best way is to do lap times, but I don't have accurate equipment for that. For simple pulls on the dyno to see results, it's cheap. A tune session can run you a few hundred depending on what needs done. Call around to a few shops and see what they offer. A simple dyno is anywhere from $20-$40. All depends on their equipment.
 
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