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  1. Fog light vent

    have you had a chance to purchase/install? do you have honda sensing?
  2. New York 20 CTR Shift Base Acuity/Perrin $125

    Thanks for the fast responses and the quick shipping! Parts arrived looking great :)
  3. The Tuned CivicX Experience & Reliability Thread (for all models)

    Almost an exact two year update: Vehicle: 2020 SI Coupe Total tuned time: 2 years Tuned miles driven: ~35,000 miles (58,000 total miles) Tuning device(s) used: KTuner V1.2 Tunes used: TSP Stage 1 Fuel used: Costco 91 Additional related mods: PRL CAI Race MAF, BMS Intercooler, PRL DP...
  4. Group Buy | Suma Side Mirrors | Up to 30% Off

    Do the Suma side mirror come with the white adjustable knobs on the back or do we re-use OEM? Anyone know where I can buy the knobs? Passenger side broke, lol.
  5. California All Weather Floor Mats for Coupe

    Looking to buy All Weather Floor Mats for the Civic Coupe, preferably High Wall. Not sure if they're different for Civic trims, looking for Si Coupe compatabile model. Located in CA. Thanks in advance!
  6. Grounding multiple accessories together causes power source to be the same(?)

    Hello all, I just recently hard wired a Uniden radar detector to my 2020 SI and I'm experiencing an issue where the detector will stay on even after the car is powered off. I did an Add-a-Fuse to fuse slot 19 (Moonroof) and verified that: 1. while the car is off, the moonroof doesn't work...
  7. PRL Cobra CAI to SRI?

    Hi all, Is it possible to convert a Cobra CAI to a SRI temporarily? Is it as simple as just removing some tubes and changing my tune? There’s a big storm forecasted tomorrow and the streets around both my place and work tend to get flooded frequently. Thanks in advance.
  8. low car battery causing alarm issues (?)

    @brotard dealer thought it was a battery issue. they checked it and batt passed so they said for them to check further, it’d be a $199 diagnosis fee since i was out of the warranty period by a couple thousand miles. service advisor saw a lot of my aftermarket electrical (dash, side markers...
  9. Wheel spacers

    garageline spacers are perfect with oem studs. +1 for 20mm front and 25mm back. i’ve seem some people run them swapped. looked pretty nice also. i think 25mm pokes out slightly while 20mm is flush. easy enough install to try one way and run it for a couple thousand miles then swap em at your...
  10. Best solution for slightly louder exhaust?

    any sound clips by chance? @pinhead66
  11. Best solution for slightly louder exhaust?

    I got a muffler delete and the drone was crazy when you let off the gas at 3-4k rpm. cold start sounded so nice though. so I added a glasspipe resonator where my mufflers used to be. still droned at 3-4k, but a lot more manageable. installed a prl catted dp and the drone is terrible again...
  12. Possible to remove cat from down pipe?

    wow, never knew that the epa was going after companies selling catless dpipes. you could try searching for used ones here on the forums or fb/insta. i don’t use fb, but i follow xgenparts on ig and see some posted here and there. i saw a tiktok of some guy drilling into their catted dp on a...
  13. low car battery causing alarm issues (?)

    turned out to be a faulty bcm. had it replaced at the dealership. if anyone has a similar issue, i recommend checking out this thread: https://www.civicx.com/forum/threads/keyless-starter-system-glitch-car-turning-on-by-itself-to-accessory-mode.30268/
  14. Keyless Starter System Glitch? Car turning on by itself to accessory mode.

    an update for anyone facing similar issues in the future: dealership diagnosed a faulty bcm and replaced it. unfortunately, i was no longer under warranty due to over-mileage (37k miles). i was charged $199 for a diagnosis fee/credit to any subsequent repairs and they quoted $890 for the parts...
  15. Downpipe

    did you wrap it with anything?
  16. California HUGE Part Out - 2018 Civic Si Sedan (Also seeking some stock parts)

    are you by chance selling the inlet pipe by itself or only w turbo?
  17. The Tuned CivicX Experience & Reliability Thread (for all models)

    Vehicle: 2020 SI Coupe Total tuned time: A little over 5 months Tuned miles driven: Around 6,000 miles Tuning device(s) used: KTuner V1.2 Tunes used: Currently only using TSP Stage 1 Map 2. Fuel used: Costco 91 Additional related mods: PRL CAI Race MAF, BMS Intercooler, PRL Catted DP...
  18. low car battery causing alarm issues (?)

    drove the car for about 30 minutes on the freeway after the morning jump and had it sitting for about 4 hours. just took it to autozone and the battery tester read 80% charge which was bittersweet because I was really hoping I just needed a battery replacement.... got the car starting itself...
  19. Keyless Starter System Glitch? Car turning on by itself to accessory mode.

    wanted to add myself to the list, lol. 2020 si with the same issues. car turning itself into acc mode with no one inside. alarm going off in the middle of the night. car not responding to keyfob. going to dealer in the morning tomorrow. are any of you tuned or have any hardwired electronics...
  20. low car battery causing alarm issues (?)

    wanted to note that when I went to disconnect the battery, the car wouldn’t stay off. kept pressing the start/stop to turn off the car, but the acc mode kept coming on. also battery was dead again this morning even though I disconnected the battery. maybe it was already drained from the double...


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