To make you're car produce more power there are a few things you can do;

1. Burn more fuel by adding more oxygen; Turbo, SuperCharger, Cams, Injectors, supporting mods, etc..
2. Increase RPM's; Tune, Valves, Cams, etc.. Typically the first mod you will want on a car
3. Reduce friction inside the engine; Lighter Pistons, valve springs, etc.. Not the first mod you do lol
4. Traction; most of the time left out of the equation, but arguably the most important..

Im not car geniues but a little research can go far man! With 3 grand I would do lots of research!

3 grand won't get him shit considering he's asking a d2 forum what "mods" he should do to his car

I finally decided on a BMW 330XI for AWD cause I like snowboarding. The guy we bought it from says the rims front rim is bent so it gets speed wobbles at 60 mph+. Anyone know a good place to buy tires for 19" rims? Trying to get some aftermarket ones. Or 18" even.

Just get some VMR's and youll be fine. Contact a sales rep and tell them you found them on e46fanatics.

I looked on CarID and I think I'm going to buy some 18" Lexani CSS7 rims with Gloss black finish. Then most likely get some Pirelli all season tires for 1600$ they will be balanced fitted and other stuff

That is sketchy as F.

A bent rim will almost never make your entire suspension start to shake.. Hopefully you didnt get a car that hit a curb and the entire suspension is fucked! If you did you just fucked up...

Easy way to check.

Hang your head out the window and drive at 10mph while watching the wheel in question.

If it's bent, you'll see it clear as day.

those are nig wheels lol. I purchased a set of Rotiform LHR for my e36 318is. still have 2-4 more weeks to wait till theyre even shipped

Those look so bad

damn bro, you bought an already fucked up car. Not looking like a bright future

did you even have a mechanic take a look at it before you bought it?