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33 Posts
Appears to be a slip-on? Also note Frame sliders & Brake lever guard
Slip-on’s
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2018 Ninja 400, 2015 ZX6R, 2019 Z900, 2012 KX65 (kart track), 2018 MT07
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31 Posts
2018 Ninja 400, 2015 ZX6R, 2019 Z900, 2012 KX65 (kart track), 2018 MT07
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31 Posts
Here is a better video with the bike being revved out.
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17 Posts
Oh man that thing sounds good!
And that's why I'm buying one. 🥰🤤🤤
Titanium header with a shorty under cowl pipe will be symphonic ecstasy surely able to rouse anyone's excitement for this bike. 🤷🏼♂️🤙
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42 Posts
Can't wait for all the Two Bros and M4 exhaust posts
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42 Posts
These are the only, acceptable and correct answers. Maybe Spark - had the Spark full system been around when I bought my N400, I may have gone that route. But the time it was available I already had the full Akra with wideband bungs installed in each runner for per cylinder tuning and wasn't going to give that up haha.
Also, noticed your username, ex-mil?
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31 Posts
I think i remember the spark giving the most hp boost for the n400 but I never liked the sound, was really flat. I'm not much of a track racer so full exhausts with a balance (like akra titaniums vs carbon) are a favorite. I didn't know you could tune per cylinder, that's sweet
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42 Posts
I'd have to go back and look at that comparison that Toye did, but I think it was like neck and neck if I recall - close enough it could be chalked up to day-to-day differences if I recall. I wanted it for the full Ti
The Akra system I have, I think is stainless header than a Ti core/CF sleeve canister if I recall. The Spark was all Ti, I think. And I'm OCD where stupid little things like that mismatch bother me haha!But, worked out well, finding a welder that can do Ti is a pain so I'm happy with the end result.
But yeah, per cylinder mapping - easily can do it. Well, I guess that's relative. If you have the right tools, hardware and skillset then it's pretty easy.
2022 Ducati SuperSport 950S (road), 2023 Ninja 400 KRT (track)
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44 Posts
Yup. Navy
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37 Posts
Have the Spark full Ti system and it's pretty great - the sound isn't my favorite (missed the LV-10 I started out with) but it did really howl on track
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37 Posts
Super cool - how did you manage it on the ECU side? Assume it was some type of custom ECU with capacity for multiple wideband O2 sensors?I'd have to go back and look at that comparison that Toye did, but I think it was like neck and neck if I recall - close enough it could be chalked up to day-to-day differences if I recall. I wanted it for the full Ti
But, worked out well, finding a welder that can do Ti is a pain so I'm happy with the end result.
But yeah, per cylinder mapping - easily can do it. Well, I guess that's relative. If you have the right tools, hardware and skillset then it's pretty easy.
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42 Posts
Air Force here. Nice to meet another vet!
Oh boy, that does sound pretty good sining at track pace.
Negative - stock OEM ECU. I did a post about it YEARS ago on the N400 forums that I never really followed through with updating and uploading data for people to see and follow along. Just recently got back into it the past few months.
Yoshimura knows a thing or two about building exhaust systems Ninja ZX-25R FULL CARBON with Yoshimura Exhaust *PURE SOUND*
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37 Posts
Nice, this is it right? Will make for an interesting read, as I'm currently sitting on a long flight
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Omg I've seen this video, and if they come out with a heptaforce for the zx4r like that I will buy it instantly
Edit: The full vid the above comes from
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