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  1. ACUITY CURL CONTROL Cold Air Intake System for the 9th Gen Civic Si (OEM Intake Manifold)

    For Sale Section
    I am selling my new, never used Acuity Intake. I opened the box to admire it but never installed it. Never even seen the garage. Selling for $375 US + shipping. Part: 1891-K1
  2. Takeda SRI for R18

    Been thinking about getting the Takeda SRI for a while but haven’t pulled the trigger. Any R18 owners have this and want to give their thoughts? I know this won’t increase much power but I do know it’ll give a deeper sound and increase throttle response(hopefully). I’d be getting this without a...
  3. Mishimoto Silicone Intake Tube Civic Si

    For Sale Section
    Used Mishimoto Silicone Intake Tube for a 9th Gen Civic Si. Converting my car to stock and am selling the parts. This tube is in excellent condition with only 10K miles on it. Looks great in the engine bay & livens up the induction sound. Installation is quick - just need a screw driver. Sells...
  4. Looking for a TBS in Canada for a 2012 sedan

    Bolt-Ons and All-Motor
    As the title is saying i'm having a lot of trouble finding one of these things to fit my car. Anybody know where I can order one? Also wondering about other budget mods that would get me a little bit of power or even just some sound.
  5. Anyone have the Ktuned 3" or 3.5" intake installed?

    Intakes and TB Spacers
    Just curious on what your guys opinions are on the ktuned 3" or 3.5" short ram intake is? I know the stock box is good, I know CAI is recommended, and I know the PRL short ram is a pretty damn good alternative, but i haven't seen much opinions about the ktuned intake on this forum. Ktuned has...
  6. New to The Si World

    General Maintenance
    Hi everyone, I just recently got a red 2012 Civic Si Coupe. I have a couple questions if anyone can help me with please. First, these are my plans I have listed so far: Invidia N1 Catback Exhaust ...(because I love the deep tone, look, and the loudness of it) Coilovers ...(not sure what to...
  7. K-Tuned 9th Gen Short Ram Intake

    Si Only
    Short Ram Intake (3" & 3.5" available) from K-Tuned is now available for 9th gen Civic Si. I would love to see how the 3.5" intake compares to the competitors !! Details from their site: Application: 2012-15 Civic Si models only. (Sorry this intake DOES NOT FIT with R18 engines) K-Tuned...
  8. DC Sport Short Ram Intake

    Intakes and Spacers
    Ok guys question, a friend of mine recently gave me their DC sport short ram intake from their 2012/2013 Si. I have a 2014 Si. Are the connections different from their year to mine? There are 2 extra connections that have nowhere to go on my car after it is connected. Is that normal or does this...
  9. Hybrid Racing CAI install notes

    Intakes and TB Spacers
    I'd like to start by saying a couple of things. First of all, this is not a full DIY; this is just a list of things that I ran into while installing this intake and some suggestions to get around these problems. Secondly, this intake is made for the 8th generation civic si so i would recommend...
  10. Engine won't rev past 4000 RPM

    Mechanical Problems & Technical Chat
    I have a 2014 Civic Coupe and a week ago I installed a HPS Short Ram Intake with a friend. (I don't know much about car internals). Car works fine while driving and sounds nice. When I am in neutral or park though, engine won't rev past 4,000 RPM. When I drive, this does not happen. Here are...
  11. Best air intake for 2012 honda civic si

    9th Gen Civic General Chat
    Hey guys! New to the site and I wanted to know if anyone can tell me the best air intake to get on my honda civic si? Got my car yesterday and can't wait to make it sound and run better.
  12. Do I really need a tune for an intake? Also need help finding the best intake

    Hi everyone I had a Takeda short ram intake on my old 2012 Accord coupe LX-S 5 speed. I currently have a 2015 Civic si Coupe, and I thought that the Accord and the SI had the same or a very similar motor, and many people here seem to say it needs a tune.. I don't want to lose power but I love...
  13. Intake and Exhaust only

    Bolt-Ons and All-Motor
    2012 Civic Si Sedan: So, after 2 years ive finally concluded i'd like to invest in some aftermarket parts: Looking for a clean sound with just a little more get-up. -Invidia 12-13 FB6 FB Civic Si Sedan Catback Exhaust Stainless Q300 SS Rolled Tip -K&N 69 Series Typhoon Air Intake System 12-14...
  14. Help me make a decision 2012 Si Coupe

    9th Gen Civic General Chat
    So I get paid 3x in August. I was really looking forward to getting hondata and now that Vit has the deal going on for hondata and tune it's pretty sick deal. However, it's still like $770 out the door or so for it. It would compliment my KN typhoon amazingly well :D. Other option I was...
  15. Installed K&N Typhoon in my '12 Si

    Si Only
    please excuse the shitty wire job for the amp. not my doing and will zip tie it soon. Was a pretty easy install, however, getting the connection from the stock part of the intake onto the typhoon was a bitch. My suggestion for anybody doing install is to remove battery and part of the stock...
  16. Which intake did you guys choose and why..?

    Intakes and Spacers
    I have a 2014 Si sedan thinking I should go either with the K&N Typhoon or the Takeda.. Any pics feedback comments experiences appreciated.. Thanks
  17. Intake deals. K&N, AEM, Injen, Skunk2, Greddy, aFe, Takeda

    Pm, Email or Call us for best forum pricing! We will beat any ones pricing on any part we sell! Free shipping orders over $150 within the continental US! Check out all Intake items on our site here. Intake - Moddiction
  18. Civic Si Intake Development

    Hi forum, my name is John Glass, I am an engineer at R2C Performance Products in Vernon Hills, Illinois. We are looking to develop a new intake for the 9th Gen Civic Si and are looking for help from a vehicle owner. If you would be interested in helping out we would ask you to make a series of...
  19. Skunk2 cai + rbc = good couple??

    Si Only
    I've been reading around the forums lately hoping to find an answer to my question. People have been saying that the skunk2 CAI (8th Gen) will fit the RBC intake on the 2012 Civic Si?? I want to be 100% certain before I go ahead and buy the kit and stuff.
  20. Help me decide!

    Si Only
    I picked up my 2013 civic si sedan couple months ago. I love it! I want to pick up parts for it over the winter and install all of them in one weekend this spring when its nice. I have been doing a lot of research but would like some input on a couple things. I will start with the list I have...