Road Legal Exhaust?

[Hudson1984]

Hi all,
after a spot of advice.

so, the new ST is home (by new I mean new to me)

It's pretty loud, nothing too bad but just loud compared to my normal diesel vehicles.

It was listed as an aftermarket exhaust, however, I wondered if there are aftermarket exhausts that are road legal? I don't want to be swapping the damned thing come MOT time. I just want an exhaust that'll do the job it's needed to, I've no interest in noise.

[The Rotrex Kid]

As long as it’s got a cat and it’s not too noisy then it’s ‘legal’

If you don’t like the noise, buy a standard one and stick that on!

[Hudson1984]

yeah that's the route i'll probably go.

I want to take the car to about 300bhp, but i've no interest in having other people know that's what it is. It's a shame the Ram air kit is noisy too, as i'm not sure that'll stay.....will see how I go, I like quiet power haha.....a sleeper ST if possible.

[The Rotrex Kid]

I’d say if you want 300bhp you would need some kind of aftermarket exhaust. I don’t know the ST that well but I’d expect for that power increase you’ll need better breathing than the OEM system.

[Hudson1984]

yeah no doubt you're right in that one... I'll see if I can find a road legal performance part.

[Hudson1984]

Scorpion cat cat systems are MOT compliant and a 2.5” tip shouldn’t be too noisy either....will speak to a fitter I think

[SlimJim16v]

A custom exhaust place may be able to add another silencer to the existing system.

[Hudson1984]

SlimJim16v said:

A custom exhaust place may be able to add another silencer to the existing system.

oooh didn't think of that! have to see if there's anyone about - would quite like smaller diameter tips too, ideally rolled.

[bigandclever]

Maybe this is some semantics that I don’t understand, but my Golf has a Milltek exhaust and the TVR has an ACT Performance exhaust, and they’re both road legal and pass MoT’s no problem.

[Hudson1984]

bigandclever said:

Maybe this is some semantics that I don’t understand, but my Golf has a Milltek exhaust and the TVR has an ACT Performance exhaust, and they’re both road legal and pass MoT’s no problem.

I think you have to go a ruddy long way to have it fail on noise - emmissions certainly i.e. remove the cat and all that jazz.

semantics possibly - but i'm probably not being very clear either.

Noise - mostly personal preference, I want a nice sound not a rediculous one (there's alot of boy racers round here with 5" exhausts on a 1.2 clio and it sounds st.

Emmissions - I want to retain the cat, want it MOT legal.

So yes, bit unclear probably

[rigga]

A 200 cell sport cat will be emission compliant, free up a few extra horses and add a bit of noise to a standard system, another option to an outright noisy exhaust that is just that, noisy.