It depends on your exhaust. The height of the diffuser is variable to fit with different size exhaust tips. As long as it’s even from right to left you’re all good.
This is how mine fits with the HKS Super Turbo exhaust. Maybe with the stock exhaust you could raise the diffuser high enough...
Just FYI - pulling the airbag off the second time is infinitely easier than the first since now you have a feel for it. The first time I pulled mine it took like 20 min, the second time it took 3-4 min, the third time less than 2. You should be able to pop the airbag back off and fix the...
Early model 2021s are the best. The ECU is still tunable, and it has lower compression and 6-port heads for higher power. 2020 is a close step behind since the ECU is still tunable. All the others are way down the list since tuning is very expensive due to the locked ECU.
Works the same. I’m not sure if there’s much of a power difference, but the throttle mapping, steering feel, suspension, etc. in normal vs sport all work the same as stock.
It could, if the ECU tune shifts the rev limiter up. So say normally the trans will auto-shift at 7200 RPM but the engine rev limiter is at 7000, the car will hit the rev limiter before shifting. If the tune moves the rev limiter up to 7400, the car will now shift before it hits the limiter.