Best performance upgrades and accessories for a Subaru WRX?

Question

What are the actual essential performance upgrades for a stock WRX that wont immediately blow my engine or ruin my daily commute? Im driving a 2020 base model in Chicago and the potholes are already brutal enough, so I cant go crazy with a track-spec suspension setup.

Ive been scouring NASIOC and YouTube for weeks but honestly im just getting more stressed out. Everyone says a Cobb Accessport and a protune is step one, but then I read a dozen horror stories about ringland failure or warranty issues immediately after flashing. Im torn because I want more power but I only have like 2k to spend right now and I need this thing to be reliable enough to drive to work every single day for the next three years at least. Should I start with an AOS and better tires first, or does an exhaust and intake actually make a difference without a tune? Some people say just get a catback for the sound but then others insist you need a full turbo back to see gains, and it feels like everyone on the forums is just shouting at each other. Does anyone have a setup that doesnt involve constant anxiety...

mumfltmeqn · Accepted Answer

Honestly, grab a Cobb Accessport V3 and a GrimmSpeed Catback Exhaust for that better sound. If you are worried about Chicago potholes, upgrade to some Bilstein B6 Performance Shock Absorbers for better dampening.

yspyqwgtzd · Answer

Been thinking about your question for a few hours now. Honestly, if you wanna keep that VA chassis alive in Chicago, prioritize cooling and handling over chasing dyno numbers. I run the IAG Performance Street Series AOS on mine and it gives me such peace of mind for daily driving, especially since the FA20 likes to blow a bit of oil back into the intake. Pair that with a set of Michelin Pilot Sport All Season 4 245/40R18 tires, which are absolute game changers for those nasty potholes and cold city streets. Forget the catback for power gains, it is basically just expensive noise. Before you go spending that 2k on go-fast parts, are you planning on tracking it at all or is this strictly a work commuter? Knowing how hard you push it on weekends changes the maintenance schedule quite a bit.

mswtgizetr · Answer

Totally get the stress, man. Honestly, skip the intake until you actually need it for a bigger turbo setup because the stock box is surprisingly decent. If you want a reliable daily, focus on the stuff that keeps the car alive rather than raw horsepower numbers.

Definitely get an air oil separator, it is the best insurance for these engines.

Put your money into high-quality summer tires for better handling without needing new coilovers.

A catback exhaust is fine for sound, but dont expect performance gains there. If you want a bit more response, just go for a reputable dyno tune without pushing the boost levels too high. Keeping it conservative is key. My car has been running strong for years with these simple tweaks, and I've been really happy with how it drives to work every day.