Tuning in the UK

Discussion in 'UK' started by Sunstorm, Aug 3, 2019.

  1. a90_tay

    a90_tay Well-Known Member

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    If you put downpipes in, it makes the same volume as the american ones as it removes the particulate filter

    can still use valves then
     
  2. E4EVL

    E4EVL Active Member

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    Not necessarily true... I think you have to swap out more than the downpipe in a UK car, we have OPF’s too that I don’t think the yank exhaust has
     
  3. a90_tay

    a90_tay Well-Known Member

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    ah ok, maybe you’re right then

    I’m really in two minds about wether to modify, still not even run in yet. On 500 miles
     
  4. E4EVL

    E4EVL Active Member

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    With emissions rules our cars are choked massively. The back pressure restricts power output so the more free flowing the intake and exhaust is, the better.

    The intake isn’t restrictive until you start pushing big power, the exhaust however... well that’s a different story as cats (meow)/filters really get in the way. Without these, the car can breathe easier and also will sound louder and more aggressive but it’ll need to be combined with a map and also would fail an MOT but easily reversed
     
  5. Twisted Tuning

    Twisted Tuning Well-Known Member
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    They really sniff the cars there? Not just an obd2 check? I have many clients across the water and dont recall them having issues going catless as long as the obd2 checks out
     
  6. E4EVL

    E4EVL Active Member

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    Well... haha to the letter of the law, yes. They do both a visible check and an emission check as part of an MOT test for cars with cats/DPF/OPF’s etc.

    Any car has to pass an MOT annually once it reaches three years old. There are some “friendly” testers out there that’ll let it slide, tricking the system by shoving the pipe up another car etc but as time goes by the government are getting hotter and hotter on it so they mystery shop garages and check up on them, if they’re caught dodging the emissions check it has pretty major implications.

    If you’re a petrolhead, chances are you’ll know someone that’ll get it through which is why there are so many catless cars but they want to crack down on it.
     
  7. OP
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    Sunstorm

    Sunstorm Well-Known Member

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    Yeah tested at annual MOTs which isn't an issue for a new car as it's not tested for the first 3 years, but there is also the (small) chance you can be stopped for a roadside check: https://www.gov.uk/emissions-testing

    My WRX STI had a sports cat, but would still fail emissions on an MOT check at local garages. If I took it to a specialist a long way away, it always passed first time. I didn't ask many questions as I got pass certificate, but I'm a bit more worried about the Supra.

    There is even talk of introducing checks on how loud exhausts are: https://www.bbc.co.uk/news/uk-48564995

    I think I'm going to go for the Milltek silenced version after all, so will let you know how I get on.
     
  8. Twisted Tuning

    Twisted Tuning Well-Known Member
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    That sucks thay they really check thay stuff. Done states here do, some don't
     
  9. Bosstee

    Bosstee Well-Known Member

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    Glad Milltek gave you that info, saved me 2k... The Remus sound files were also very disappointing.
    Browsed through you tube to see how custom exhausts on other B58 GPF cars sound and must say they all sound like garbage.

    The GPF is located in the midpipe section and there is a sensor in the downpipe to see if it's there (and/or clogged)
    If you remove it you will have to code it out or you'll get a CEL and maybe even temp issues (GPF cars have to maintain a certain exhaust temp for the GPF to work)

    That's what they used to do in Germany, but now they really sniff our exhausts like in the old days, all because of Volkswagon and their evil software....
     
  10. OP
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    Sunstorm

    Sunstorm Well-Known Member

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    #25 Oct 18, 2019
    Last edited: Oct 18, 2019
    I've gone for the Miltek valved in the end as it's got a different sound, not that much louder, but a different tone. Booked in for it to be done next Wednesday, so i'll report back.

    [Edit] they've posted a comparison video on instagram:

    Also Litchfield have updated their page, showing the Stage 1 for £600 inc VAT - https://www.litchfieldmotors.com/toyota/supra
    no point having it done over the winter (and with only 480 miles on the clock), but next spring i'll be looking closely at this option.
     
  11. Dunc

    Dunc Well-Known Member

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    Watch this space guys. I hope to have some news for you by the end of the week on tuning option in the UK.
     
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  12. a90_tay

    a90_tay Well-Known Member

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    Not meaning to sound like an ar*e so i do apologies. But what is the point if it all it really does is change the tone?

    Alot of money for a slight difference
     
  13. Dunc

    Dunc Well-Known Member

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    I think we're all thinking the same tay. I'm working on something that will give an increase in volume too.
     

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