Decided to contact SP Engineering myself and see what they had to say, this is how it went:
Hello there, there’s been a bit of a discussion on a bike forum I use about the legalities of your exhausts on the road and was wondering if you could give me a definitive answer?
I know your website says “BSAU marked Road Legal” and I purchased one of your Moto GP end cans because of this, but rather than having that nagging doubt in my mind I thought I’d ask the question direct.
Many thanks
Darren Silvester
Hi
Many thanks for your email, Please confirm the make, model, and exact model of exhaust we have supplied?
[color=rgb(31, 73, 125)]I bought the stainless Moto GP (stubby) for my Yamaha FZS 600[/color]
These are not marked road legal although have db killer for MOT use. The XLS range is slightly chunkier, (100x300) these are BSAU marked.
Hope this helps.
[color=rgb(31, 73, 125)]Mine does have the BSAU markings.[/color][color=rgb(31, 73, 125)]I haven’t had any problems with MOT’s and I’ve never ridden on the road with the baffle out as it sounds a bit too lively, as you know.[/color][color=rgb(31, 73, 125)]I wasn’t aware of any exhaust can actually being marked as “road legal”, or are you saying that the BSAU marking is enough as far as the police are concerned?[/color]
Exhausts are very GREY area! no stamp is required for MOT, would need to check with law, each application or view of policeman can vary!
Kind regards
David Pepler
SP Engineering Motorcycle Exhausts & Accessories Ltd
Unit 5 Keyford Court,
Frome,
Somerset,
BA11 4BD
So, pick the bones out of that?
Not really the definitive answer i was looking for but i do appreciate that some police will overlook things, whereas if you've just flown past them at 140mph then they might not be as forgiving!
I think having the BSAU markings is a huge bonus if they do get a bit funny though, and i will continue carrying my paperwork stating that it's okay for road use with the DB killer fitted.
mokin
Hello there, there’s been a bit of a discussion on a bike forum I use about the legalities of your exhausts on the road and was wondering if you could give me a definitive answer?
I know your website says “BSAU marked Road Legal” and I purchased one of your Moto GP end cans because of this, but rather than having that nagging doubt in my mind I thought I’d ask the question direct.
Many thanks
Darren Silvester
Hi
Many thanks for your email, Please confirm the make, model, and exact model of exhaust we have supplied?
[color=rgb(31, 73, 125)]I bought the stainless Moto GP (stubby) for my Yamaha FZS 600[/color]
These are not marked road legal although have db killer for MOT use. The XLS range is slightly chunkier, (100x300) these are BSAU marked.
Hope this helps.
[color=rgb(31, 73, 125)]Mine does have the BSAU markings.[/color][color=rgb(31, 73, 125)]I haven’t had any problems with MOT’s and I’ve never ridden on the road with the baffle out as it sounds a bit too lively, as you know.[/color][color=rgb(31, 73, 125)]I wasn’t aware of any exhaust can actually being marked as “road legal”, or are you saying that the BSAU marking is enough as far as the police are concerned?[/color]
Exhausts are very GREY area! no stamp is required for MOT, would need to check with law, each application or view of policeman can vary!
Kind regards
David Pepler
SP Engineering Motorcycle Exhausts & Accessories Ltd
Unit 5 Keyford Court,
Frome,
Somerset,
BA11 4BD
So, pick the bones out of that?
Not really the definitive answer i was looking for but i do appreciate that some police will overlook things, whereas if you've just flown past them at 140mph then they might not be as forgiving!
I think having the BSAU markings is a huge bonus if they do get a bit funny though, and i will continue carrying my paperwork stating that it's okay for road use with the DB killer fitted.

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