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  1. Focus RS Purchasing
    Hey everybody. I’m looking at buying an RS soon and one that I am considering has had some modifications done. Should I be worried about reliability. I’ve never modified a car before so I’m not sure what effects reliability and what doesn’t. I’ll provide a list of the modifications below. If...
  2. Introductions
    Hey all! I joined a couple years ago but have never properly introduced myself... I'm Brian from San Diego, CA. I have a 2017 Stealth Grey RS that I bought used back in November 2020. This has been the best car I've personally ever owned and I always look forward to driving it (almost) every...
  3. Focus RS Maintenance
    Hey everyone, I have the Mountune B3 pack and my Cobb Accessport crapped out a bit ago and I lost my stored tunes. I did not have them backed up on the computer. Does anyone have a copy of the stock tune for a 2016 they could send me?
  4. Parts for Sale
    Traded in my 17 RS and looking to part ways with the couple things I have left. Accessport comes with: Case Grey & Blue faceplate Unused sticky pad attachment Suction cup mount for windshield All cables Looking for $475 USD / $650 CAD SOLD Also selling front and rear WeatherTech floor liners...
    $60 USD
  5. Focus RS Suspension
    After waiting months for backorder, I've finally installed a set of these springs. Took 5 hours and a lot of swearing but they're totaly worth it. The drop is subtle but the pogo and bounce is 90% gone. Cornering and ride feel more direct and predictable. Even the lurching between shifts is...
  6. Parts for Sale
    Ni-Resist Cast Turbo Elbow Mounting Kit for the Mk3 RS The mountune ni-resist cast turbo elbow mounting kit has been engineered to allow the easy installation of upgraded turbochargers on the mk3 Focus RS. Cast from ni-resist to withstand extreme temperatures and duty cycles, the kit includes a...
    $400 AUD
  7. Parts for Sale
    Traded in the RS 😭. Here are the parts I never got around to putting on. Mishimoto Pedal Spacer - 50 shipped Mountune Quickshift and solid shift bushing upgrade kit - 245 shipped (willing to split for 200 and 50) Mountune Sport Springs - SOLD Mountune/Rallyarmor mud flaps - SOLD Willing to...
    $0 USD
  8. Sold Sold Sold
    Unmarried Mountune Accessport V3 Installed OTS Mountune Tune: AP3-FOR-004B1 COBB Accessport V3 ECU Flasher - Ford Focus RS B1 Package [Auto Start / Stop:Disable] [Downpipe Type :Stock original] [Engine Idle Speed :750 RPMs (factory setting)] [Flat Foot Shifting :4000 RPMs] [Fuel Octane /...
    $380 USD
  9. Parts for Sale
    Parting out my 2017 Focus RS, all items have been removed from the car! Thanks for looking Located in Boulder, CO (80301) Open to reasonable offers, just shoot me a DM Will not ship the skid plates (will ship the spare winter 20 spoke, ~$70 to ship) I can take any specific pictures that you...
    $1 USD
  10. Focus RS Builds
    Hey, all. I am new to the Focus RS world, and I am curious if compatibility issues would arise between the Mountune M380 kit and c-pe Exhale Kit w/ HKS BOV.
  11. Focus RS TroubleShooting
    Hello all, I'm curious if anyone has any data logs with a Mountune B3 off-the-shelf tune. Backstory. Around December I took my airbox off to upgrade my shift bushings. When I put everything back together my AccessPort said I was making about 10% more horsepower for no reason. (Normally 409HP...
  12. Focus RS TroubleShooting
    Hey hey -- anybody get this trio of codes thrown at them before? Some background: My cat was already replaced @ 30K miles by the dealer under warranty, seems to be failing again? Car has 60k miles, been running a stock tune for the last 20k miles (kinda scared to put the Mountune back)...
  13. West / West Coast Owners
    New never used V2X (with valve defeat) and Sport Springs for sale. V2X = $1000 Mountune V2X Cat Back Exhaust Upgrade Focus Rs 2016-2017 Springs = $190 Mountune Sport Spring Set Ford Focus RS 2016-2018 Prefer not to ship so I'm posting here. I live in Marin so we could hook up anywhere in the...
  14. Introductions
    Brand new here. Have had an RS for a while now but I have a set of Mountune lowering springs brand new for sale located in Arizona. If anyone is local and interested let me know!
  15. Parts for Sale
    Hey guys I officially sold the RS ! I’m located in Burbank,CA I prefer local pick up, Shipping is available buyer pays shipping Here’s all the stuff I have left from the RS, SOLDACESSPORT(unlocked)- $350SOLD CPE Triton exhaust non valved version-$500 CPE Intercooler-$400 Steam speed boost...
  16. Parts Wanted
    looking for a Mountune Triple Pass Radiator, Will pay for shipping
  17. Parts for Sale
    Hello everyone I have for sale 2 shift knobs For the RS, the car will soon be up for sale in the market place PM if your interested 1 Mountune shift knob black, condition:good $45 2 likewise the stubby pro, this knob comes with the RS reverse lock out, it weighs a little over a pound so going...
  18. Sold Sold Sold
    Hi, I have a Mountune complete air intake up for sale, will include all clamps as well. Price- $400 Also I have a few other mods I will be posting soon stay tuned, thanks for seeing shipping available, buyer pays for shipping.
  19. Focus RS Guides
    Hi All, I have been a lurker here for a while and this is my first post! Getting right into it, I am looking at the Mountune B7 package and when looking at shipping options I saw there is an option for "Hold at Mountune for installation". I am located in Northern CA and it would be a little bit...
  20. Parts for Sale
    SOLD LMK if you have any questions.
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