r/8thGenSI

Hey all

Just purchased the hybrid racing cai, Invidia q300 exhaust and plm header w the cat. Anyone else running this exact setup? If so are you enjoying it and what kind of power increase should I expect?

Can someone help me find where to buy a clutch pedal assembly for an FA5 (2009 Civic Si Sedan), I ordered one off of eBay that was advertised as one for an Si, only for the seller to refund me because apparently its the wrong one. Junk yards near me don't have Si's in their lot, just a bunch of 1.8s, to those who have replaced theirs and bought it online, can you send a bro the link? Thanks guys!

Does anyone know the torque spec for the mount that bolts into the oil pan that holds the rear motor mount?

Whaddup
I’ll get straight to it, is 17x9 +25 too aggressive? I’ll be running a 215/40/17 tire. I’ll be stock suspension for a bit and I’m fine with rolling fenders. Would this work?

OEM, Hybrid racing em1 or Ktuned em1? which one is the best? is there any performance difference? do I also need to replace the slave cylinder and upgrade to braided lines? where can I find those?

Replaced the clutch kit with exedy stage 1 about 8k kms ago

I have a 2011 Si with 286k on the clock. I bought it new, I drove for a living so it's mainly highway miles. It has original everything. Clutch, freon, coolant, starter... the thing just never quit. I changed the oil religiously with Mobil 1 its whole life. Its been parked for the last 2-3 years. Is the Z3 still in high demand? Do you think it's worth more together or is it better to part the thing out?

Hey guys Im looking for some advice. I have a bone stock rallye red fg2 with 120k miles. I love this car so much I’ve always wanted the coupe version of the 8th gen si’s but sadly life is catching up and I’m needing more space. I’d like to go trade for ls430 or maybe even get a 3is but nothing will ever compare to driving a manual lmaoo. Anyways should I just deal with the consequences or try to find a 4door si 8th or 9th gen and would it be worth it?

I have a flash pro and the secondary o2 is disabled in the tune. I know that most cars use the secondary o2 just for catalyst efficiency, but I’ve heard our cars also use secondary o2 for fuel trims.

I have LT fuel trims disabled out in my tune as well, but not ST trims.

I found a red 8th gen for a fair price for sale and I’ve been planning to get another one of these cars even since I sold mine. I’ve regretted it more than almost any other decision I’ve made in my life, so I’ve been determined to get another one asap. So today I found this perfect sedan in red. At first I thought “maybe the red is too much.” But it’s been stuck in my head all night. Personally I’ve never even seen a red one in real life. Just the classic brownish/ silver, blue, white, or black. I’m not quite financially ready to pull the trigger, but seeing how great the condition is on this car all around, the mileage being low, and the price being right, I’m afraid this might forever be the one that got away if I don’t go and pick it up now. It is halfway across the country, but I’d be happy to make the drive if it ends with me driving my dream 8th gen home. But my question is, just how rare is red? Will I be able to ever find another clean one like it again if I let this go for a year or two?

I engine swapped my car, replaced ecu and the whole 9. Locksmith came out and got me a new fob and linked it to the car. Buttons on fob work but when I go to turn the car over, the green key light still flashes.

So I was browsing market place and found a set of 275/40/17 nitro 555g2 for $200. I have 235/45/17 on it now. Has anyone on here tried to fit 275/40s? How bad was it? They really aren’t much bigger than my 235s.
The 275s are 25.6 x 10.94
The 235s are 25.3 x 9.3

Would it be easier to just re wire the speakers all the way around the car when installing my new head unit to keep the tweeters and the sub?

I feel like bypassing the amp with a whole new harness would be along the same lines of frustration but i would also have to buy a NEW 5 channel amp just to keep my previously mentioned speakers and sub.

If anyone has any advice/solutions please let a brother know 😭