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Pending sale. Selling my K-Tuner V1.2. I've got the TSP Stage 1 (Stock and PRL RACE MAF) and TSP Stage 1+ (Stock MAF) tunes for Si (2017-2018) included (tunes locked to the serial no. of this K-Tuner). I've got the original box, the original USB cable, and will include the OBD splitter I used...

After 5 wonderful years with my Si coupe, I'm leaving the Si family. I moved to a new area in Central Washington that gets lots of snow and has amazing outdoor and offroad activities everywhere. I finally have some real garage space, so I was able to replace the fun vehicle with a 2021 SV650. I...

You were a white Si coupe, I was a modern steel metallic Si coupe. I asked about your 4 outlet exhaust. I thought it was MAP. You said it was custom from a local exhaust shop. It sounded good. DM me if you're on here.

CupHolderHero started selling a coupe kit, so I picked one up. I noticed that the kit was given in two parts: A master kit with all of the common pieces like the front cupholders and center console A coupe kit with the rear coupe-specific cupholders. Unfortunately the lower front door inserts...

With the unexpected cancellation of the Si and Coupe for 2021MY I realized Si specific parts like interior lighting, HFP parts, etc. may start to disappear soon. I think I'm going to have to move up my plans to buy the HFP suspension and sideskirts from next summer to now so I can be sure not...

This offer flew off the table a long time ago due to the lack of interest. =========================================== Exactly what the title says. I found a small shop that offered coupe trunk/rear tower bars at one point but discontinued them due to lack of demand. As far as I can tell...

Alright, which member was this?

Well, after a shit ton of research and a few failed attempts to find a subwoofer that would literally just fit in the coupe rear deck, with the help of @rramrattan I found that the Kicker 44CWCD84 is not only a (tight) drop-in fit in the coupe rear deck, but it also has very good characteristics...

Mounting 5-1/4 speakers in the rear coupe deck isn't impossible, or even very difficult. It's mostly just a lot of work to custom-fabricate mounting adapters. One stipulation I had was I refuse to make permanent modifications to the car's chassis. This meant I would not expand the rear deck...

I'll preface this with I picked a bunch of alpine speakers to upgrade my Si stereo. Unfortunately Alpine doesn't make a 3.5" speaker to install for the center, so on the recommendation of many here I bought the JL C2-350X. The JL was far louder and much more abrasive than the alpine tweeters...

The future of high performance all-seasons is now listed on TireRack.com I just bought Pilot Sport A/S 3+ tires last summer after getting sick of the quick performance degredation of the OEM Goodyear Eagle Sport A/S on the Si. I noticed when I researched them the design is a few years old, last...

I finally got around to installing the dirt cheap Yonaka Civic Si exhaust I pre-ordered a while ago and it doesn't bolt up. The mid-pipe flange is so thick the factory frontpipe studs are not long enough to thread the nuts back on. I looked around at other exhausts and they all appear to have...

I think they probably drove it a little too hard after tuning it. Plus the money shift tearing the teeth off the gears in the tranny... Well. They are one lucky SOB since the dealership already promised to repair it under warranty. Some gems:

https://www.yonaka.com/ProductDetails.asp?ProductCode=YMCB-CIV1719-SI-2DR Just got the email this baby is back in stock, well sort of. Preorders open now to ship May 15. I really like the look of the triple exhausts and I couldn't resist $449, seems too good to be true. I'm in for one. It...

UPDATE 10/27/20 I received the updated N1 and installed it. I had nothing but issues with it from bleeding to gear lockout, vague clutch pedal feel, and inconsistent clutch engagement. While the adjustment range was corrected, nothing else about it was changed (I took it apart to check). It's...

I've been driving on the ACT Organic clutch kit (HC10-HDSS) for a few weeks now, and so far it's been pretty great. I've experienced a few lockouts that I was able to cure by being more diligent with my clutch foot and ensuring I had the pedal at the floor before shifting. Since I finished the...

Sold. Since I replaced my OEM clutch and flywheel with the kit from ACT I have no use for any of the OEM components. Taken out at 11.5k miles due to slipping with TSP stage 1 tune on map 3. Asking $200 shipped OBO. If you only want part of the kit (flywheel and bolts as core for the type r...

Good evening, gentlemen. I ordered the ACT clutch kit with the organic disc back in December when they were first launched. As far as I know, I am the third person on these forums to install one. https://www.advancedclutch.com/product/hdperf-street-sprung-hc10-hdss?gfid=p4783-c319310 I did...

Has anyone seen any real world results of these new spark plugs? My other car is due for spark plugs, so I looked up the NGK plugs to find these. Outside of their own marketed testing, I can't find any real comparison of them vs. iridium, platinum, or conventional copper plugs. They don't list...