[VFR750F3]

I just ordered these. Through my research the two tall stacks are possibly 19mm shorter for some more midrange. I did not order the new lower airbox. The 2022 US velocity stacks also have different part numbers. Once I get them I will post some dimensions. If anyone has any aftermarket ones lets compare dimensions.

 

[peterj59]

these are EU stacks, where did you get them from

 

[VFR750F3]

HardPartsJapan | eBay Stores

Bringing you all the rare and exotic hard parts from Japan,from the world leader in Japanese aftermarket parts!

www.ebay.com

 

[vfrcbr919]

I got mine the other day

 

[VFR750F3]

Some dimensions of the euro 22 stacks. Tried to be exact but they are oval and not round.

 

[JA-SP]

Following. This is related to the small changes made to the 2022 bike? Air box and velocity stacks changed?

 

[Dude1966]

Wonder if these velocity stacks are similar to what Brentuning is producing / selling with their stage 2 kit.

 

[VFR750F3]

Brentunings are different. The honda ones are slash cut oval not round. Brent does not make them another company does for him just like his handheld which is made by Dimsport ie Rapid Bike. This is what I have been told.

 

[Dude1966]

Thanks! Through a UK supplier I can get the Bentuning handheld with either a stage 1 or 2 ECU map. A prerequisite for the stage 2 map are other velocity stacks.

They offer:
1) BrenTuning Velocity Stacks (required for Stage 2) +£255.00 £212.50
2) MWR High Performance Velocity Stacks (alternative for Stage 2) +£480.00 £400.00

The Brentuning stacks are currently on backorder. The alternative comes from MWR which is pricy IMO. I saw you shared measurements of the official CBR1000RR-R 2022 MY stacks. Not sure if the Brentuning and MWR stacks are copies of the original 2022 set.

 

[Shinji43]

Some dimensions of the euro 22 stacks. Tried to be exact but they are oval and not round.

Got mine in a few days ago and just got around to installing, definitely a noticeable difference in profile. They remind me of the “big mouth” stacks I installed on my ‘17 and it provided an immediately noticeable difference in the mid-range. Haven’t gone out on the bike just yet to see if if I can feel the difference.

 

[VFR750F3]

Very nice. I have not installed mine yet.

 

[VFR750F3]

Getting there with new velocity stacks and air filter. I broke a fuel line when removing vacuum lines for Driven block off plates. Cheap ass plastic rails now. My VFR800 &RC51 are metal. OMG the foam was a pain in the ass to remove use GooGone. Waiting for Rapid Bike and Flash. Evap canister delete also done.

 

[shadowblaster]

Hi, great update, I am eagerly awaiting an update if these make the difference I am looking for in the mid range, also can you confirm these fit the 2020 air box. Cheers in advance.

 

[VFR750F3]

Updates made a big diffetence power kicks in at 4k instead of 6k per my friend Chris. He did not go for long ride. I am still fatigued from covid. You can really hear the airbox now and you can feel it sucking on your hand. He took out the foam installed EURO 22 velocity stacks which are similiar to the HRC 2019 SP installed air filter and block off plates from Graves and Rapid Bike ie smooth idle and perfect AFR harness a little short to crank sensor and O2 sensors Also injector 5 and 6 were both labeled 6. Keep in mind removing pairs gives the Rapid Bike a correct AFR. I now have DTC code 88 evap and 89 pairs valve. Throttle response still good with codes. You can flash I assume to remove or keep plugged in. I will flash also to remove other limitations. Otherwise happy
Taking apart this bitch is a pain in the ass. You have to be very careful. Take lots of pictures. Fairing removal is horrendous. Ducati and Aprilia much easier and previous Hondas. Chime in for any inconsistencies.

 

[shadowblaster]

Annoyingly this only seems to be an upgrade for the USA bikes as I went to my local dealer today in the hope to purchase these velocity stacks, only to find the EU version 2020 ones that are fitted to my bike have the same part number as the 2022.

 

[VFR750F3]

not true double check also stock eu are not slash cut in 20
17225-MKR-D10 17125-MKR-D10 2020 EU

 

[shadowblaster]

I’m guessing the guy at Honda, may have been looking up the wrong one. I do agree and was keen to go and purchase, but when I asked for the part numbers for each, he gave me the same number. I went home and updated here. I have since gone on a Honda site and it states Honda have shortened the middle two by 15mm, narrowed them and slash cut them, as well as changing the air entry side of the filter box, this would confirm what has been stated in other updates. Slightly annoying as I was set to order some, I will need to go back when a different/senior techi is there. Cheers for the correction.

 

[VFR750F3]

My only concern is the stacks are much shorter. I was under the assumption taller stacks for midrange shorter for top end nevertheless I do not understand the slash cut design maybe they act differently. I am going to dyno the bike soon to see what the changes have really made.

 

[shadowblaster]

My only concern is the stacks are much shorter. I was under the assumption taller stacks for midrange shorter for top end nevertheless I do not understand the slash cut design maybe they act differently. I am going to dyno the bike soon to see what the changes have really made.

 

[shadowblaster]

Look forward to that, but never true life accurate on a dyno as it can’t give the same air pressure as when accelerating along a road.
couple of things. Firstly the part number you quote states 2020 and when I looked it up, it appeared for the earlier bike and not a 2022 EU, or am I just getting confused.
Secondly, be careful with that filter, I had one in my 2019 SP, fortunately I decided to block off the evap and on inspection after only 200 miles there was a sediment of fine grit on the inside of my air box, post filter. I checked it was fitted correctly and it was. I have heard of many similar cases, so I decided to remove it, they just don’t seem to filter. Have you tried holding it up to the light, it’s like you can see straight through it. I would only use, standard or K&N, but not sure they do one for the RRR.