Are you just upgrading the tires, no rims?
I'm at least going +2 from the stock 16" LE rims. Looking at Enkei Kojin 18x8 or the Strada Calore 18x8 and I'll probably stick with Goodyear or something that Costco has lol.
Sounds about right. I have intake and exhaust and a bunch of bars that make it handle better. The rest is cosmetic and electronics. I will be upgrading the wheels at some point for looks and handling and will lower it with TRD springs. But no plans on modifying the engine.
Mapisa Group is where these above came from. (pretty sure)
But you can find anything with the usual internet searches. eBay, Amazon, google, etc.
However, you've come to the right place if your planning on modding your Corolla!
The S front I can deal with. I have an LE. But the latest front ends??? Ugh, what were they thinking? Maybe it'll grow on me.
These cars above are beautiful!
I don't know specifically what the connections look like on the entune units but, you can intercept the wiring that goes to your speakers and convert them to RCA. I've done this with my 14 LE.
I didn't do the CAI, but just installed the SRI. HUGE difference in throttle response! I went with this one so that if I ever sell the car I can easily return it to stock.
Also, add a MAF from jet chips.com. (All though I'm still waiting for Amazon to ship mine) this will aid in even better...