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  1. Mk3 Petrol Engine, Exhaust and Induction
    So I ordered this catless downpipe from Whoosh Motorsports & I'm looking to upgrade the rest of my exhaust as well. What do I order to achieve that because it's obviously not going to be a Catback exhaust upgrade seeing how I'd be buying stuff I already own. Please advise, anyone's help would be...
  2. Mk4 Exhaust
    Hi All. new to forum, so apologies if I’m wrong place! picked up my new mk4.5 focus st with perf pack at weekend and just want some recommendations on what I could do to make it sound a bit beefier. not after anything that makes it pop and bang constantly, just something that makes it sound a...
  3. Mk2 Engine, Exhaust and Induction
    Hello! I am just wondering if anyone could tell me what cat back exhaust I have on my mk2 st3. There is no name anywhere but have the part number, I have tired to Google it but no luck. Looks very similar to the mongoose cat back but I want to be 100%. Believe it's 3 inch. Thanks in advance!
  4. Mk2 Engine, Exhaust and Induction
    Ladies and Gents, I would be really grateful for some advice. To my horror, I just found one of the exhaust pipes on my beautiful MK2 has been torn off and the remaining metal is clearly corroded. I haven't got colossal funds behind me at the moment and wanted suggestions for half decent...
  5. Mk4 Exhaust
    So i just purchased my first ST a week ago and I can’t get the pops and bangs to work correctly. (Yes Ihave made sure the engine is hot and the oil temp is good) There are no pops when revving the engine at a standstill in sportsmode, just some small rumbles. When im driving in slow speeds in...
  6. Car Care and Detailing
    Over the weekend I had a chance to clean the car and get rid of all the winter gunk. Generally speaking I'm happy with the results (noticeable tar markings but I'll deal with that in a month or two) but I'm unsure how to best tackle the exhaust pipes. I used metal paste with a microfiber cloth...
  7. Mk3 Petrol Engine, Exhaust and Induction
    Hi guys, I have a focus a st mk3.5 and have had a bit of a nightmare with the exhaust. When I bought the car it already had a custom decat exhaust, with my mot coming up I decided to get a scorpion cat back exhaust, without stupidly realising there was still no cat… MOT today and of course it...
  8. Mk3 Petrol Engine, Exhaust and Induction
    Hi everyone! I’m very new to this site and have owned my Mk3 st since October now. I was wondering if anyone can help me. I believe there is a 3” cat back system fitted from a previous owner but I was looking at getting a relatively cheap solution to getting some more volume. Been looking at...
  9. MK2 Focus ST parts For Sale or Wanted
    ST225 Thunderstorm cat back wanted Ideally within a couple hours from Yorkshire
    £300 GBP
  10. MK3 Focus ST parts For Sale or Wanted
    Looking for an original exhaust system for an st2 focus estate 2013. Currently have an upgraded exhaust system but its too loud for me, happy to swap or happy to buy. Please let me know 07930 864474
    £300 GBP
  11. MK2 Focus ST parts For Sale or Wanted
    Car has rust holes in exhaust, need a replacement but don't want to spend big money on a new one. Would prefer a decent condition Miltek or other performance option but would look at an original if a decent condition one exists. Also would prefer it to be not too loud, no Cat delete. Thanks
  12. Mk3 Petrol Engine, Exhaust and Induction
    Had an MOT done on my 2016 Focus ST and the emissions test failed due to high Lambda readings. Since then, the garage has done multiple tests with very similar results. Checked the exhaust (no cracks/ holes), done a code readout (nothing) and about to take it for a boom up the motorway with...
  13. Mk2 Engine, Exhaust and Induction
    Hi all, I have milltek system from the turbo back and wanted a little more noise without being obnoxious, so opted for a cutout allowing me to choose between quiet and loud. Excellent! Well, it was for the first 10 miles or so until the plastic gearing in the valve motor got chewed up, now the...
  14. MK3 Focus ST parts For Sale or Wanted
    exhaust removed by AMD Tuning, and replaced with a new Miltech exhaust system. Original exhaust available, shout me if needed 🤘
    £100 GBP
  15. Mk4 Exhaust "How-to" Guides
    I recently installed the Mountune downpipe and GPF and absolutely love it. I decided to do it myself for several reasons, mainly the cost of installation and gaining experience. The process took about 4-5 hours as I didn't really know what I was doing, and was figuring it out as I went along...
  16. Focus ST Mk4 Non Technical Discussion
    Hi there, does anyone have photos of the stock undercarriage of the MK4 showing the exhaust, GPF, downpipe, etc...? I can only find images online of custom exhausts, and even then not the whole undercarriage.
  17. Mk3 Petrol Engine, Exhaust and Induction
    Hi everyone. I've made a video (with no talking or background music!) comparing the stock Ford exhaust to both the fully-resonated and semi-resonated Milltek Sport catback exhaust systems. There are hardly any decent videos showing what these expensive exhaust systems actually sound like, so I...
  18. Mk3 Petrol Engine, Exhaust and Induction
    Hi guys so I have had a custom exhaust fitted with Tony Banks (Leeds) very reputable company. Its a 2.5" cat back. I told them I wanted as little drone as possible but when I've got it the drone is so loud I have to shout tk passengers to have a conversation. And the bass noise it produces goes...
  19. Mk2 Engine, Exhaust and Induction
    Hi, as titled looking at replacing my deres standard exhaust for a cat back after losing one of my tips. I don't want something too loud but nice enough. There is 2 2nd hand I have been looking at. The 1st being a scorpion non res 2.5" cat back which is a short journey away to collect, and the...
  20. MK2 Focus ST parts For Sale or Wanted
    Hi all, I'm looking for a resonated cat back system for my mk2 ST. I like the look of the milltek 2.75 system, but I'm not going to turn down other offers. I'm just putting the feelers out in case theres a good price on a second hand before biting the bullet. Thanks, Michael
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