Single best mod you've done to your car!

[Smokey Bear]

E39
Upgraded all speakers added subwoofer and everything run from apmlifiers
Cost: some stuff I had but to replicate possibly 1500

It's already a 200% nicer place to be and I havn't got the sub adjusted properly so it's still a bit boomy.

[schoonerm3]

E46 M3

Cosmetically was a oem csl bootlid

Performance was probably adjustable front and rear H&R antirollbars

Cost I cant really member but in total approx 1400

[318 iS Cosmos]

E46 M3

Cosmetically was a oem csl bootlid

Performance was probably adjustable front and rear H&R antirollbars

I take it there is a big difference over stock?

[John_D]

Cleaning the throttle cable made the biggest difference on my car! not exactly a mod but there ta go

+1 and the throttle body! No more sticky throttle.

[Venom]

Cleaning the throttle cable made the biggest difference on my car! not exactly a mod but there ta go

+1 and the throttle body! No more sticky throttle.

How do you clean it?

[John_D]

Pop off the intake pipe and you'll see the butterfly, I just held it open with my fingers, sprayed in carb cleaner and wiped it clean with a rag.

There was a ring of carbon that was causing the butterfly to stick shut, most noticeable after using cruise control the accelerator pedal would get stuck and need a good stamp to move again.

[Venom]

Pop off the intake pipe and you'll see the butterfly, I just held it open with my fingers, sprayed in carb cleaner and wiped it clean with a rag.

There was a ring of carbon that was causing the butterfly to stick shut, most noticeable after using cruise control the accelerator pedal would get stuck and need a good stamp to move again.

Excellent. Thanks John

[Steve320]

car : glanza
best mod : thicker anti roll bars

the car instantly felt tighter and instilled way more confidence in the corners

[schoonerm3]

E46 M3

Cosmetically was a oem csl bootlid

Performance was probably adjustable front and rear H&R antirollbars

I take it there is a big difference over stock?

Absolutely.

Combined with coilovers, limiting kit and fresh bushes/ball joints the car literally feels like a go kart

[fraser5454]

E92, ditched the God awful run flats and put on a set of Advans. Transformed the car!