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  1. Best Brake Fluid for Si

    Been searching and can't find what I'm looking for. Obviously the manual tells me genuine Honda Heavy Duty Dot-3 fluid. I've read about Bosch fluid being really good as well as Motul 5.1. I don't track this car but I have a K-Tuner with TSP Stage 1 and a PRL Cobra CAI. Spirited driving is my...
  2. Why I traded in my Civic X Si

    So question for the OP (and yes i realize this post is a couple years old). It seemed like you traded up to the type R - how has that been. I have an SI tuned with tsp stage 1 and prl cobra cai (street maf). I like it but I kinda want to make the jump. Mostly for the extra hp and handling...
  3. Feature You Didn't Expect to Love?

    These two things for me are the things I notice the most when I drive another car without them. Like in the wife's van when I change lanes I always find myself looking at the infotainment screen for that right side camera image and it's not there. Same with touch unlock/walk away lock. I...
  4. What type of oil does everyone use?

    So maybe I'm cheap but Costco has a Kirkland brand full synthetic oil made by a national company (Waren or Warner I think). You can get 10 quarts for just over 20 bucks when it's on sale. I use the weight the manual recommends - 0W-20. I'm still scared about changing the filter every other...
  5. How many miles are you getting per tank and what MPG?

    What year civic: 2018 Civic Si Average MPG: 31-36 mpg Mostly highway/city/mixed: 50/50 Which octane gas do you use: 91 (highest they sell in Utah) Engine Modifications: PRL CAI (street maf) Kutner + TSP stage 1 Tune Driving Habit: MIx of spirited and conservative driving. If I leave it on...
  6. looking for an intake anyone selling ?

    I have an Injen CAI for a 2018 Si. I believe it is works for all 10th gen Si's but not the other trims.
  7. California WTB: CAI for civic SI

    I have an injen CAI that was on the my '18 Si when I bought it. I replaced it so I no longer need it.
  8. My anti theft option

    :eek::eek::eek: Wow. Didn't know those existed. Kinda scary. This discussion reminds me of my 7th Gen Civic HX I had when I first got married in '02. Bought it from a guy in the LA area. A year later my mechanic was doing some work on it and when he was done it wouldn't turn on. Starter...
  9. Got a Reality Check Today

    Yeah but you crushed him at the gas pump though. :headbang: All kidding aside, yes we have to realize this is not a race car. Or even a high-performance sports car. I will say though - This car is an incredible feat of engineering. A car that goes relatively fast with amazing handling and...
  10. Ktuner for sale

    Great Seller - thanks for the tracking info and quick shipment! got the KTuner hooked up and the TSP Stage 1 tune flashed to the car. All works as it should. Thanks again!
  11. *chirp chirp* Am I the only one in Utah?!

    This seems to have turned into the unofficial Utah welcome thread. :D Anyhow this is my 6th Honda and by far my favorite. Had 98 Civic Hx, 00 Accord Ex, 04 Civic EX, 13 Civic Ex-L, 12 Honda Oddysey Ex-L (for the wife) and as of about 2 months ago my 2018 Civic Si (4dr). Still own the last 3...
  12. What’s your most loved/hated thing about your Si?

    On the bright side it seems like there is far more head room with which to upgrade/modify without hitting the reliability ceiling (obviously there are those who push to the limit and pay the price with a blown motor but the limit on the 10th gen seems farther than previous generations)
  13. What’s your most loved/hated thing about your Si?

    Agreed on all counts. I couldn't believe after some spirited driving and in-town driving my mpg was still 32! The handling though... I've owned 3 other civics and an accord but never an Si and the handling is amazing. Also don't love the fabric throughout - Si is on the higher end of the...
  14. PRL Cobra CAI MAF upgrade Question

    What you said at the end kinda clicked. When you can spread the R&D over tens of thousands of products its lowers the per unit cost. I don't have any idea how many of these PRL sells, but it is definitely far fewer than honda sells so they have fewer units over which they can spread those R&D...
  15. PRL Cobra CAI MAF upgrade Question

    That sounds like work. ;) FR though that's actually not a bad idea. I mean, I did like the idea of owning both just to allow me to revert to stock-ish if I wanted. But yeah, in the end only being out $75 for the upgrade isn't bad. That's a great workaround and thanks for the suggestion but...
  16. What’s your most loved/hated thing about your Si?

    Favorite thing about my Si is that I live about a half mile from the mouth of a 7 mile canyon road. When I see the yellow signs warning of an approaching turn with the suggested 45mph speed and I punch it in fourth gear and hit 80 through the turn - It's the best feeling. I'm literally getting...
  17. PRL Cobra CAI MAF upgrade Question

    So I know there has been a lot said about the PRL Cobra CAI. I've searched but haven't seen anything about this. Maybe PRL can chime in. So I purchased a PRL Cobra CAI street maf version a few months back. My car came with an Injen and I wanted to avoid long term damage to my car so I...
  18. Ktuner for sale

    PM'd
  19. Stock Intake Interchangeability between '17 and '18

    Yeah so the "wife" star and the "funds" star finally alligned and I ended up just getting the PRL Cobra cai (only had a few days but I love it). Ended up not going to stock but I did discover that they are in fact interchangeable in case anyone was wondering for future reference.
  20. To those with a white Si Coupe

    Well it's not a coupe but a "Panda" nonetheless.


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