Intake is different because of the MAF.
Strut bar and brake brace will fit.
Exhaust could be modified to fit if you really wanted to keep it. Easier if you had a coupe. You're probably better off selling it.
Just like @gtman said, running 87 gas on a 93 tune is a bad idea.
And you have a blow off valve installed? That's also a bad idea and will make your car run like shit. You should reinstall your factory bypass valve and get rid of whatever aftermarket BOV you have.
P0171 was the code that I had when my injectors failed. The lean condition also damaged a spark plug. 64k miles and just under 5 years old at the time.
I believe P0172 is the opposite - rich code. But that could also point to injectors.
Even if the lights went away, I'd keep an eye on fuel...
Looking good! 18x8.5 +35 is perfectly acceptable on this platform. I could see CTR owners wanting 9.5-10.5" wide wheels for the power they can put down, but Si is totally fine with 8-9" width.
By the way, your car is begging for a chrome trim delete!
HKS has a nice module that plugs right in-between the main ADS module under the C-pillar. Instead of (4) separate ones that most companies are selling. Haven't had any issues with it so far! But it is pricey
What I found helps 99% of the time is to make sure your phone (and any other BT devices linked to your car) have Bluetooth turned OFF prior to turning Tunerview on.
If you plan to use Android Auto or Apple Car Play, then:
Ensure Bluetooth is turned OFF on your phone
Turn Car on
Open...
245/35 may be too small. When people are suggesting 35 series tires, they mean to pair that with 265 or 275 width.
Rolling diameter of 245/35r18 is only 24.75", more than 1" smaller than your OE spec.
Diameter of a tire is a function of tire width, aspect ratio, and wheel diameter.
245/30r20 tire rolling diameter is 25.79"
245/40r18 is pretty dang close at 25.72"
245/45r18 is 26.68"
You generally don't want to stray too far from OE rolling diameter or else it could mess with things like speed sensors, ABS, and such. And on a car like this, it could lead to undesirable...
I won't pretend to know the ins and outs of owning a business, but I think you should keep all receipts for anything related to your vehicle. And find a good accountant!
From College Hills Honda, both part numbers are interchangeable. -101 replaced the -100 version, but I assume there is probably still leftover stock of the -100 version.
About $400-500 for quality D2S projectors, bulbs, ballasts, and wiring.
I paid a company $400 for labor, but you could attempt that yourself and save some $$$.
If a muffler delete doesn't leave you satisfied, I think this is what you want: https://prlmotorsports.com/products/2016-honda-civic-1-5t-3-exhaust-turndown