Pulled the trigger on the full Akrow low mount system

Got 15 percent off the cost of it, the revised belly plan and install. Dropping it off tomorrow for the install at Coleman’s in Falls Church.

Good on You !!!

You are going to enjoy the power and almost instantaneous power response.
I just installed the low system as well. I like the cleaner look.
To me it seems to crank and start easier. It seemed to take about 3 to 4 revolutions before lighting off with the cat and now it takes no more than 2 revolutions and just settles into the warmup regimen.
This system just fits perfectly. I did not have to bend twist or open up holes for it to align. Clearances are tight but for a purpose. Amazing bike to wrench on.
To me it also runs cooler.

Nice brush stroke to your canvas!!!

Congratulations!!

Thanks. I hope to pick it up on Friday so I can ride this holiday weekend. Might get the magnesium wheels next. But that’ll be later.

What year bike?

2023, just hit 3K miles when I dropped it off.

Please post if there were any issues installing the under belly system on a 2023. I think the only potential issue is the number of O2 sensors, which would be drilling and welding on some bungs. I’m not sure on the EU5 bikes of they can be disabled like the EU4 ones.

I decided to just get the small piece and not the full belly pan.

bp_SFV4 said:

Please post if there were any issues installing the under belly system on a 2023. I think the only potential issue is the number of O2 sensors, which would be drilling and welding on some bungs. I’m not sure on the EU5 bikes of they can be disabled like the EU4 ones.

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If you buy the correct part number for the EU5 bikes all 4x o2 sensor bungs are already in the pipes. The instructions supplied with the kit only show 2x sensors installed which is where I got stuck. The kit came with 2x o2 sensor plug terminator plugs and 2x sensor bung block offs which I used but it obviously wasn't correct. I guess you'd just use these on pre MY23 models and they supply just the 1x part number kit for EU4 and EU5 bikes.

Yes the kit is for 22, 23 and 24 year models. They told me today I can pick it up tomorrow and did not mentions any issues. They done a few installs this spring already. So I’ll assume they did it right.

For prosperity, what is the exact part number you bought?

Mcv4 said:

If you buy the correct part number for the EU5 bikes all 4x o2 sensor bungs are already in the pipes. The instructions supplied with the kit only show 2x sensors installed which is where I got stuck. The kit came with 2x o2 sensor plug terminator plugs and 2x sensor bung block offs which I used but it obviously wasn't correct. I guess you'd just use these on pre MY23 models and they supply just the 1x part number kit for EU4 and EU5 bikes.

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Unless there’s been changes recently, the Ducati/Akrapovic supplied mapping for the lower pipe set is all based on the 2020 model, which is Euro4 with 3 O2s everywhere. Some confusion still persists obviously. That’s why the earlier Euro4 system wasn’t listed for the 22+ bikes because they were Euro5 with 4 O2s. Now it seems the Euro5 pipes are available, but likely still using the Euro4 mapping. Hence the 2 sensor wire plugs and 2 bung plugs.

I can say that the 2021 Euro4 bike wants the two O2 sensors installed and plugged in for best lower rpm running even though my dealer who flashed the mapping and charged me for it (I did the pipe install) said they were disabled. They are not disabled in the official mapping. At this point I’m guessing the Euro5 bike would like at least two O2 sensors installed as well.

PN for Euro 5 bikes is 96482081A. Mapping supplied is to suit Euro 5 bikes. True that the part number would still be different for Euro 4 bikes as they only run the 2x o2 sensors. The engine light was on after I took the bike in for the tune file to be uploaded at Ducati. As soon as I installed the extra 2x sensors engine light was gone.

I’ll be sure to get the install manual when I go back Saturday in my car to pick up the normal exhaust system. Then I’ll scan it to PDF.

SBK-SP said:

Ducati/Akrapovic supplied mapping for the lower pipe set is all based on the 2020 model, which is Euro4 with 3 O2s everywhere

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Maybe a typo, but EU4 is 2 sensors. One on the front bank and one on the rear bank.

My very basic understanding is that maps can be open loop or closed loop. Open loop will look for the value from O2 sensors but typically in the lower RPM range, think throttle barely open. The type installed are narrow band, and can only detect if the air/fuel is in or outside of a very small ratio. This is opposite to wideband sensors, which can detect exactly what the ratio is at any given time. Closed loop merely uses the programed table and ignores or disables any sensor input.

Spit balling here, but I'd think an optimum solution would be per cylinder wide bands with continuous adjustment based on environmental and rider demands. I have no idea if the OEM ECU is capable of such a thing.

Part number…

That price creep...IMO the best looking exhaust on the Panigale V4.

I have the full lower on my 2024 SFV4 and it came with the 4 - O2 Sensor's on the system. I actually purchased one that was for a panigale v4, installed it and just grinded off the attachment points for the fairings i don't have. I originally used the brentune stage 2 and recently switched to Daniel at Deussen..
I know brentune gets a lot of hate on this board, but honestly.. they are both great. The gearing feels different, with the bretune I would stay in gears much longer, with duessen I am shifting much more frequently and getting up into 5,6th gear much more. I am going to bounce back and forth on them and see which one suits me best over time.

TL;DR - akra lower exhaust on my 2024 sfv4 works amazing. love it.

userSFV4SP2 said:

I have the full lower on my 2024 SFV4 and it came with the 4 - O2 Sensor's on the system. I actually purchased one that was for a panigale v4, installed it and just grinded off the attachment points for the fairings i don't have. I originally used the brentune stage 2 and recently switched to Daniel at Deussen..
I know brentune gets a lot of hate on this board, but honestly.. they are both great. The gearing feels different, with the bretune I would stay in gears much longer, with duessen I am shifting much more frequently and getting up into 5,6th gear much more. I am going to bounce back and forth on them and see which one suits me best over time.

TL;DR - akra lower exhaust on my 2024 sfv4 works amazing. love it.

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Wouldn’t shifting more with the deussen tune be the better tune? Since you can’t change gearing with an ECU , by sounds of it , the deussen is revving through the powerband faster than the brentune.

Which one feels more potent to you ?

NYCV4S said:

Wouldn’t shifting more with the deussen tune be the better tune? Since you can’t change gearing with an ECU , by sounds of it , the deussen is revving through the powerband faster than the brentune.

Which one feels more potent to you ?

Click to expand...

Not sure if that logic tracks.. the only reason I say that is I don't need to leave the gear because I'm going from 0-55 in first, 2nd 55-95, (I could almost skip through 2nd with brentune and go right to third to hit 120mph (i dont go much faster than that on roads.) But it's unruly during that process, the bike rips. It's not like with the Deussen I'm getting to higher speeds faster, feels like I'm just shifting more. The Deussen does sound and ride soo clean, but that makes me feel like it's because it's more tame? My brother actually mentioned the sound when I pulled up to the office, he immediately asked if I did something to my bike. The shifting is arguably better, hard to find neutral at times, its almost like its not an audible click, it just winds up there with a super soft tap down from 2nd. Maybe it needs to relearn that part, idk.
Totally against anything I typically care about, but I might time myself on a 1/4 mile with each tune and see if it reveals anything. Do 3 on each and find the average. Maybe have someone else do the same on my bike. Level the results. I am not all about speed on this bike as I don't race it.. cleanliness of the map is important to me, but on a track I think i would want it all right there and let the DWC keep my front in check, not my map.

bp_SFV4 said:

Maybe a typo, but EU4 is 2 sensors. One on the front bank and one on the rear bank.

My very basic understanding is that maps can be open loop or closed loop. Open loop will look for the value from O2 sensors but typically in the lower RPM range, think throttle barely open. The type installed are narrow band, and can only detect if the air/fuel is in or outside of a very small ratio. This is opposite to wideband sensors, which can detect exactly what the ratio is at any given time. Closed loop merely uses the programed table and ignores or disables any sensor input.

Spit balling here, but I'd think an optimum solution would be per cylinder wide bands with continuous adjustment based on environmental and rider demands. I have no idea if the OEM ECU is capable of such a thing.

Click to expand...

Yeah fat finger typo…

Wideband sensors (4) would be MUCH better.