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Sold the Si a couple weeks ago fully bolted on back to the dealer, but they wanted to revert everything back to stock. I was lucky to get all of my bolt on parts back. However, because the dealer took the parts off, I am possibly missing a lot of bolts/screws/gaskets. Hopefully if you purchase...

Selling Ktuner V2 with TSP Stage 1 tune for $495 I also have the mount if interested. Since there seems to be concerns about scammers, I’ve also listed this on eBay if you wanted to purchase through them. Let me know and I will send you link to the listing. edit: I also realized I don’t have...

Hey guys, I’ve been having some problems with my fuel trims lately and I’m trying to figure out what the problem could be... Background: 2017 Si with about 18,000 miles - PRL Street MAF Cobra Intake - 27Won Catted Downpipe - 27Won Frontpipe - 27Won Exhaust - KTuner + TSP Stage 1 Problem...

Just wanted to give a friendly reminder to everyone to clean your intake filter! ESPECIALLY if you have a cold air intake. My Si is the first car I’ve modified so I’m still new on the whole upkeep and maintenance of various parts. Lately my fuel trims have been super off (-15 - -20% LTFT) and...

https://www.civicx.com/threads/ktuner-v2-tsp-tune-clearing-codes.38424/

Hey guys hope someone can answer my question. If I have my car tuned with TSP Stage 1 tune, then does it automatically clear any error/maintenance codes? Or do I have to manually clear the codes from my Ktuner device? I have a catted Downpipe, Frontpipe, Exhaust, and CAI. I ask because I...

So my smog was rejected because I flashed back to stock before going to get tested. DO NOT FLASH YOUR CAR EVER, RIGHT BEFORE THE SMOG TEST!!! As I was flashing back to stock, I saw that it was “erasing” and immediately had a feeling I would get rejected because all the ecu stuff gets deleted...

https://www.civicx.com/threads/installing-27won-downpipe-problems.37891/

Hey guys can anyone help me? I’m installing the 27Won downpipe right now but I’ve discovered a small problem... the studs that I use to connect the DP to the Front Pipe is still on the OEM DP. However, I’m having a hard time getting them removed from the old DP. Do I need to just buy new...

Does anyone know if TSP tune has launch control enabled on default? I’ve been trying to take sound clips of my new exhaust but it keeps topping out at 3k. Wasn’t sure if it was a setting that I have to uncheck, but I don’t see anything. @D-RobIMW

Moving all sound clips back to the top + added sound clip of the entire system installed Cold Start: Inside Cabin sound clip and Drone Test at 3k and 4K RPMs (spoiler alert: NO DRONE!) Rev Sound Clips + Parking Lot drive around Update 6-15-19 Just installed the Downpipe (catted)...

I’m sure you guys are sick of my posts about exhausts... but I have another. I’ve been in the market for an exhaust system and it’s pretty much come down to Borla or 27Won with me leaning a bit more towards Borla. My question though is should I just go straight to a DP/FP combo and wait for...

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shoutout to @cvue for being an awesome and legit seller!

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As title states: Anyone already purchase their 27won exhaust system for the Si? If you did purchase, would you mind uploading sound clips here and your reviews please? I’m dying to get the system but ended up getting a KTuner first so I can do a full turbo back later. Thank you!

Love this intake system so much. As soon as you hear the sssssssssss, you know the boost has turned on and the little 1.5T engine is ready to take off. Absolutely crushed all expectations and then some. I honestly don’t feel the need to do a resonator delete anymore either since it seems like...

As you can see these guys swapped out the honeycomb for something more “flat”? Looks a lot better in my opinion. Would love to get part numbers for these.

Clearly @ACUITY listens to our complaints very well. Being unable to heel and toe on the 10th gen civic, is probably one of the most complaints I've read here. https://instagram.com/p/BZE54BYltBI/ Well looks like Acuity will be releasing an accelerator pedal relocator soon. I don't know how...

So it just suddenly started pouring here in Las Vegas (typical) and I almost lost control of the car twice on the highway!! I was going probably 40mph and accelerated a little bit and then thebtraction control went off (or whatever the blinking yellow lights were) and the car started swerving a...