UK - CB650R - BlackWidow low level exhaust legality concerns

[pakyrs]

Hi all!

I'd like to fit my bike with a low level BlackWidow short can (200mm), I have had a call with them to understand the legality of it all and since it's my first bike in the country I don't really know what the MOT test for it looks like.

The company said that their silencers don't BSAU, EU or TUV Type Approval and a short 200mm can is extremely loud even with an additional DB Killer sold separately.

CB650R Neo Sports Cafe 21 - 24 De Cat Low Level Exhaust System 200mm Round Stainless Silencer

De-cat Performance Exhaust System Fits CB650R Neo Sports Cafe 2021, 2022, 2023, 2024 models. The latest release from the Black Widow Performance

www.blackwidowexhausts.co.uk

Has anyone got this exhaust? or familiarity / suggestions for 3rd party exhaust in the UK?

Cheers

P

 

[Brian C.]

The official info is about as useful as a chocolate Frying Pan but it says:

8.1.1. Exhaust noise​

If possible, you should assess the exhaust noise by revving the engine to approximately half the maximum engine speed. The engine should be warm before you carry out this check.

It is not possible to rev the engine on twist and go type motorcycles.

The exhaust system and silencer should be in such condition, or of such a type, that the noise emitted from the motorcycle is not clearly unreasonably above the level expected from a similar motorcycle with a standard silencer in average condition.

I have a bit of an aversion to noisy exhausts, so if you're asking far advice mine is don't! Plus from your own description it does not pass the above test.
But if you really want it, hang on to the Stock so you have the option to switch back, maybe?

 

[Redrocket]

I only fit exhausts that meet EU regs and come with a certificate and don't need a remap. They are all stated to be road legal, with the baffles fitted, not so without. So much is down to the individual MOT tester's opinion. These days with noise cameras being introduced I wouldn't risk anything that is not legal. As for my CBR I've kept the standard one. With the deliberately angled-up exit it's loud enough for me anyway. Straight through exhausts on inline fours are what really annoy people (me included). Insurance is going up significantly and a few won't touch bikes with non-legal exhausts, leaving the policy holder uninsured if this modification isn't disclosed. Even race bikes have to meet strict noise limits. Up to you.

 

[pakyrs]

Thanks, I did phone BlackWidow and I asked about a few aspects of it all, they obviously confirmed it's not road legal and the 200mm cans are super laud. Nevertheless I bought one! I will apply the second addutional baffle and perhaps change the primary baffle with a longer one from ebay. I'll investigate and report. I would have loved it to be having some eu stamps, but you can't beat the price (£360) and the look of these gp short cans. a full exhaust from other brands is a quarter of the bike price! I don't think insurance and MOT is the biggest concern, what was worrying me more is emissions a decat exhaust in my head fails, but they are all decat.

 

[Brammers]

The UK does not currently do emissions tests on bikes, so you'll be fine there.

My decatted 2014 has never had an issue.

J

 

[pakyrs]

That is music to my ears. Thanks!

 

[MotoDonner]

The official info is about as useful as a chocolate Frying Pan but it says:

8.1.1. Exhaust noise​

If possible, you should assess the exhaust noise by revving the engine to approximately half the maximum engine speed. The engine should be warm before you carry out this check.

It is not possible to rev the engine on twist and go type motorcycles.

The exhaust system and silencer should be in such condition, or of such a type, that the noise emitted from the motorcycle is not clearly unreasonably above the level expected from a similar motorcycle with a standard silencer in average condition.

I have a bit of an aversion to noisy exhausts, so if you're asking far advice mine is don't! Plus from your own description it does not pass the above test.
But if you really want it, hang on to the Stock so you have the option to switch back, maybe?

haha that description is hilarious