OK while I agree that getting low end coilovers for an M3 would be less wise I don't think mods are bad or less quality than original parts. I've had KWs on several cars and they not only improve the ride quality but the handling and grip too and give alot more setup options. As long as the quality and history of the brand and product are good then it should be fine.
Originally Posted by E46Mango
Every single part for every single vehicle is made specifically for that vehicle. Because you can bolt something on doesn't mean you should.
I can bake a loaf of cornbread and drill holes in it and mount it anywhere on an E46. Does that mean I should?
Now I'm hungry
"Failure is simply the opportunity to begin again, this time more intelligently." Henry Ford