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  1. California Sold: [SoCal] Greddy DD-R Cat-Back Exhaust w/Vibrant Ultra Quiet Resonator

    Selling my Greddy DD-R exhaust. I had a 3" Vibrant Ultra Quiet Resonator Welded on to reduce the drone. It does a pretty good job reducing the drone from 1 - 2k rpm. The exhaust got a little loud for my liking after I added on a RV6 DP/FP. On stock DP/FP I thought the sound was perfect, would...
  2. Limp Mode on the way home?

    I was driving home from the airport today when I entered our local tunnel and like anyone with an aftermarket exhaust I wanted to go vroom vroom. Now fast forward to halfway through the tunnel, I lose all my acceleration, my Ktuner's knock count jumps to the 70s and I can no longer build boost...
  3. Do you have/use a car cover?

    Hello 👋 The girl and I recently obtained a new house in the LA area, and as of right now the house doesn't have a garage. We do plan on building one within the next 1 - 2 years but, in the meantime I was looking to purchase something to protect my car from the LA sun/heat. I work from home and...
  4. Boost Leak? Whistling Spark Plugs?

    Hey guys, Just installed a PRL intercooler and charge pipe kit over the weekend. While testing it one of the pipes popped off so I decided to make a boost leak tester. I tested the system and pressurized it up to 25psi. Right around 25psi there begins to be a whistle that comes from the spark...
  5. Squeaking Front End - I'm Lost

    Hey all, about two months ago I installed my Tein Flex Z coilovers along with new 18x8.5 +35 wheels wrapped in 245/40/18 Michelins... All was good except for a creaking noise from the front passenger side. I figured this might just be the springs settling in. Fast forward a month and a half and...
  6. Brembo BBK... Fitment Opinions?

    I just wanna be sure before I spend $1,100 on some brakes. Option #1: Brembo BBK from SlickFab Option #2: 4 Piston Wilwood from TSP I want to go with option #1 as I like to look of the bigger Brembos better than the Wilwoods. Plus don't the Wilwoods look a little strange since they don't use...
  7. Did I install these wrong?

    Hey All, I recently installed some Tein Flex Z coilovers on my 2021 Sport Hatch. While inspecting the car later I noticed that my rear springs are nearly fully compressed when the car is just sitting. I didn't think I slammed the car that much, but is this normal? I didn't adjust the struts at...
  8. 245/40/18 issues?

    I recently went to Costco to order some tires. I was looking for the Michelin Pilot Sport All Season 4, but they didn't have them in the size I was originally looking for. (235/40/18) But they did have them available to be ordered in a size bigger. (245/40/18) Will I have any rubbing issues or...
  9. 2021 Sport HB vs 2021 Touring HB Mods + Poll

    Hello all, I have been really getting into modifying my 2021 Civic Sport HB as of lately . However, I have been a little bummed that when I bought the car none of the dealerships around me had a 6-Speed manual version available. I have been taking it easy on power related mods as I don't trust...
  10. AVID Now or Enkei Later?

    I have made the decision to purchase myself some aftermarket wheels. I have decided I want a fairly simplistic 6-spoke wheel design in black. I currently have two options that I am torn between. 1. AVID1 AV6's 2. Enkei T6S' The AVID's are cheaper and currently available, while the Enkei's...
  11. 2021 Sport Hatch Diffuser Repair

    About 3 weeks to a month ago I ran over a trailer hitch that fell out of someone's truck. It popped my tire, cracked my wheel and damaged some of my subframe. Long story short I took it to the dealership and got it repaired with my insurance all was good. Now today when I was working near my...
  12. Help Me Decide (Suspension)

    I have made it to a crossroads... I can't decide if I should go for a traditional coilovers setup or a more expensive air suspension setup. The car is a 2021 Sport Hatchback. I daily drive it for work about 1,000 miles a month in CA weather. (That should be going down though since I was...
  13. Window Visors + Tint

    Hey guys, has anyone installed the ProCivic window visors on their civic along with having the windows tinted? Do the clips scratch or mess up the window tint at all? (I want to use the clips because the last car I used just tape on the window visors kept falling off. (Probably a little bit...
  14. Fender Re-Paint

    Hello all, Recently I was driving behind a semi during my normal commute when I saw the truck kick up a rather large rock that hit my passenger side fender. There was a pretty sizeable scratch, but no dents, just a scratch. I wanted to get this fixed since the car has less than 2k miles on it...
  15. Evasive Motorsports - Any Experiences? (Where to buy?)

    Hey guys, I've been shopping around for some Tein Flex Z coilovers and everywhere I look is either extremely sketchy or out of stock/$1000+. I found one website from a company called Evasive Motorsports were listing the Flex Zs for $838. Has anyone had experience purchasing from them? Or does...
  16. New Shocks With Lowering Springs?

    I'm looking to lower my 2021 Sport HB, I've seen a lot of comments about how you end up having to replace your shocks sooner with lowering springs. How much sooner? I was looking to go with something like the Eibach sportline kit, so nothing too insane but at the same time not too mild. Also...
  17. New 2021 Sport Hatchback - Modding Advice

    Hey guys, I picked up my 2021 Civic Sport Hatchback a couple weeks ago and have been loving it. (I upgraded from a 2016 LX Sedan.) I'm sure each of my questions have been asked a million times on these forums but I just wanted to see if anything has changed with the new 2021 Models or if...


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