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2018 Honda CBR1000RR -- KCS Tune, Unrestricted, Akrapovic Ti header and Akrapovic Ti GP Slip-on.
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Discussion Starter · #1 ·
I'm considering a full exhaust for my 2018 SC77.

Headers, no catalytic converter and muffler.

I'd like to go full Titanium to save weight also.

So which exhaust setup makes the most rwhp tuned?

Only other mods I plan to do along with the exhaust are remove those ram air restrictions and remove the throttle limitations (tune) so that it's actually giving me the throttle I command.

Please post dyno videos, dyno graph pictures and any other info you have.

Thanks!
 

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2018 Honda CBR1000RR -- KCS Tune, Unrestricted, Akrapovic Ti header and Akrapovic Ti GP Slip-on.
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Discussion Starter · #3 ·
Just wondering, but does anyone make a Ti cat delete pipe that can work with the Akrapovic S-H10SO18-CBT GP-Style Slip-On Line Exhaust Titanium Muffler and stock header?
 

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2018 Honda CBR1000RR -- KCS Tune, Unrestricted, Akrapovic Ti header and Akrapovic Ti GP Slip-on.
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Discussion Starter · #5 ·
So this combo will make the most power and most weight savings, right?



By my math from their website it's:

Ti Header with Ti GP slip on muffler = 6.6hp 8.8tq -4.2 lbs

vs

EVO full Ti at 4.9hp 6.8tq -3.0lbs.
 

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2017 CBR1000S1
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So this combo will make the most power and most weight savings, right?



By my math from their website it's:

Ti Header with Ti GP slip on muffler = 6.6hp 8.8tq -4.2 lbs

vs

EVO full Ti at 4.9hp 6.8tq -3.0lbs.
So the improved HP number on the Slip-On Line (Titanium) S-H10SO18-CBT is vs. OEM exhaust. With the full system you're probably looking at around +6.5 HP improvement.
You'll need a tune to prevent engine damage.
 

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2018 Honda CBR1000RR -- KCS Tune, Unrestricted, Akrapovic Ti header and Akrapovic Ti GP Slip-on.
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Discussion Starter · #7 ·
So the improved HP number on the Slip-On Line (Titanium) S-H10SO18-CBT is vs. OEM exhaust. With the full system you're probably looking at around +6.5 HP improvement.
You'll need a tune to prevent engine damage.
I wonder how loud it will be with the GP slip with no cat?

Any video out there of it on a catless bike?
 

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Mine is a 2019 Sc77 with K&N air filter and a titanium yoshi slip on pipe ,
261509
made 183.6hp then after tuning got up to 192.6hp at the wheel. Was tuned by a Ozzy Ducati Superbike team and they expected low 180s after tuning but it ripped out big numbers straight away
 

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Check with LDH.
I know he can still get Arata full systems for some bikes. They made the best, even better than Akra. Not sure if they make it for new 1k’s. Japan’s finest.
 

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Check with LDH.
I know he can still get Arata full systems for some bikes. They made the best, even better than Akra. Not sure if they make it for new 1k’s. Japan’s finest.
Arata does a full and slip on system for this bike... seen a few different versions... Problem is they suck for service, and answering questions and most things are built to order.. I planned on a Arata system, sent them picture of the exhaust i had seen of theirs on the same bike, but could not get a straight answer from them if that is what they would send, and no pictures from them to confirm the exhaust. From what i was told, Arata is now owned by some South African Guy, and he is working to get them back to be what they once were.
 

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Mine is a 2019 Sc77 with K&N air filter and a titanium yoshi slip on pipe , View attachment 261509 made 183.6hp then after tuning got up to 192.6hp at the wheel. Was tuned by a Ozzy Ducati Superbike team and they expected low 180s after tuning but it ripped out big numbers straight away
that’s awesome bro. I’m about to go through a local popular tuner myself, Nicks performance. He tunes a lot of the bike here in S Fl.
so just air filter, a slip on and tune got you into the 190’s? That’s awesome bro. I just need to purchase some Velocity stacks and a filter and I’m ready for my tuner since I got my exhaust 6 weeks ago 🤦🏻‍♂️ Thanks in advanced.
 

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that’s awesome bro. I’m about to go through a local popular tuner myself, Nicks performance. He tunes a lot of the bike here in S Fl.
so just air filter, a slip on and tune got you into the 190’s? That’s awesome bro. I just need to purchase some Velocity stacks and a filter and I’m ready for my tuner since I got my exhaust 6 weeks ago 🤦🏻‍♂️ Thanks in advanced.
that’s awesome bro. I’m about to go through a local popular tuner myself, Nicks performance. He tunes a lot of the bike here in S Fl.
so just air filter, a slip on and tune got you into the 190’s? That’s awesome bro. I just need to purchase some Velocity stacks and a filter and I’m ready for my tuner since I got my exhaust 6 weeks ago 🤦🏻‍♂️ Thanks in advanced.
yeah I’ve only changed the air filter and the put the yoshi on. The dynotune guys said it’s a massive result, the best they have ever managed to pull out of a Blade.
 

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Mine is a 2019 Sc77 with K&N air filter and a titanium yoshi slip on pipe , View attachment 261509 made 183.6hp then after tuning got up to 192.6hp at the wheel. Was tuned by a Ozzy Ducati Superbike team and they expected low 180s after tuning but it ripped out big numbers straight away
You mean at the engine???? I have never seen one with that much..... I have one and it’s not close to that at the wheel
 

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You mean at the engine???? I have never seen one with that much..... I have one and it’s not close to that at the wheel
No it’s power at the wheel. Yeah I get that reaction a lot! It made 3 hp less than the Australian 2019 Superbike was making. It’s a bit of a freak of nature. It Was making 183hp at the wheel before it was the ecu was even played with.
 

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No it’s power at the wheel. Yeah I get that reaction a lot! It made 3 hp less than the Australian 2019 Superbike was making. It’s a bit of a freak of nature. It Was making 183hp at the wheel before it was the ecu was even played with.
Its BS is why. You cant compare a run from different dynos. Its for run to run comparison/improvement. If you got your bike on the same dyno on the same day it wont be making 3hp less than a super bike.
 

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Its BS is why. You cant compare a run from different dynos. Its for run to run comparison/improvement. If you got your bike on the same dyno on the same day it wont be making 3hp less than a super bike.
Its BS is why. You cant compare a run from different dynos. Its for run to run comparison/improvement. If you got your bike on the same dyno on the same day it wont be making 3hp less than a super bike.
The Ducati Superbike team tuned it. I’m pretty sure they know what they are doing :). Maybe one day I’ll chuck it on a another dyno somewhere. They did say that’s the best result they’ve seen on a blade. I have seen a couple reach 187hp before with just exhaust and filter changed too. My mate has a 2019 blade with the exact exhaust and filter as mine and his is making 181hp after his tune, big difference I know, but when we drag race there is a clear difference between the two and he is not a shit rider either.
 

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But if we assume the bike is just an outlier, what makes it an outlier?
Potentially all 8 injectors are perfectly balanced?
The bike is running a point or 2 higher compression?
The valves seat perfectly?
The engine is operating with less frictional losses?

The engine is rated 189hp at the crank by Honda. That equates to an anticipated 170 to 174rwhp.
So a 183rwhp stock measurement on the same scale would mean it is 13hp more powerful than all the other thousands SC77E engines that came off the line.
A line Honda prides itself to be making identical engines by the crate load.

That is a significant difference - that is like different camshafts or ported cylinder head or factory superbike exhaust system difference.
The question remains, what made it stronger?

Its not the intake system - they all use the same tubes, airbox, air filter and throttle bodies.
Its not the exhaust system as they all use the same headers, catalytic converter and muffler.
Its not the ECU as they all use the same ECU.

Then on top of that the tuner squeezed out another 10rwhp?

I have an SP2 with everything including the kitchen sink thrown at it and its just clearing 188rwhp.

Not saying its impossible, but... ;)
 
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