BMW 3 Series Questions Car Customization

How Can I Essentially Make My 323i As Fast As An M3?

how can i make my 323i as fast as an m3. it has 120,000 miles on it so would it harm the car or shorten the life of it by modding it with this mileage? would an exhaust and k&n harm the engine and dec...

What Exhaust Sounds The Best On An Bmw E46 323i?

i dont want anything that will make it sound like a honda civic ricer with a fart can on the back. no ricer exhaust please.

What Exhaust Sounds The Best On An Bmw E46 323i?

i dont want anything that will make it sound like a honda civic ricer with a fart can on the back. no ricer exhaust please.

Hi I Got A E30 325 Oil Cooler Just Poped Will E34 One Fit Or 36 E3o Is Ha...

E90 2006 Muffler

Do you know any aftermarket muffler that sounds nice, adds power but doesnt scream? thanks

1987 BMW 325 Muffler

Can the Bosal muffler for the 1987 BMW 325e fit on the 1987 BMW 325? Also does anyone kniow the difference between the 325 and the 325e in that year? Thanks

Considering Adding Turbo

I know I'm going to run into nickel and dime problems but i am considering adding a turbo to my 1985 325e. I'm guessing my car would smoke any stock M3 on the road. I know, I know, why mess with a n...

Bmw 325i

1990 bmw 325i se whats the bhp

Decat

what kind of difference would taking out my cat & replacing it with a decat pipe,what increase in power would i gain if any

Bmws

i just got 2 bmws a 84 318i 4cly 5 spd and a 89 325i 6 auto does anyone know if the std from 84 will fit 89 with or without engine swap was told by old owner that bmw autos suck and it on number 3 but...

Optimal Tire/Rim Size

concerning performance-- What would be the best size rim to get? Is weight more important? i currently have 16" Rims on my BMW 330i and im wondering if a tire swap would be worth the performance

Back Seat Removal 330i

My dad borrowed my car and put his dog in the back seat... leaving it in the car for 5 minutes the dog shit on everything making everything to this day smell terrible! (happened about a year ago) I ...

Will It Be Okay If I Replace The 15'' Rims With 17 On My Bmw 316 E46 (2000)...

i am worried that it will make the car significantly heavy or cause problems to the steering or suspension thnx

Increase Bhp

i own a 98 323, on it already i have a green cone air filter & a scorpion cat back system, i also own a 94 325 which i am breaking for spares including the engine , are there any engine parts i could ...

BMW 318i

i own a bmw 318i 1999 1900cc how can i upgrade it without putting any harmfull additions i know that if need a performance car i wouldn't choose a 318 but this car is my first car i ownd it 4 yearz ag...

BMW 318i

i own a bmw 318i 1999 1900cc how can i upgrade it without putting any harmfull additions i know that if need a performance car i wouldn't choose a 318 but this car is my first car i ownd it 4 yearz ag...

Engine Swap

I do have a 1989 325I convertible bmw. The engine is done. I have an offer for a 1992 325I engine,but dont know if its gonna fit?? Does it fit? Do I have to make changes or adjustments to it? Or just ...

I Have A 1989 Bmw 325i Bad Engine...does A Engine From A Bmw 1995 318i Fits...

I have a 1989 bmw 325i with bad engine...does a engine from a bmw 1995 318i fits in it?

Can You Change A 330i Into A Dual Exhaust

I Have A 96' BMW 328 IS, Do I Still Need Anti-Sway Bars??