I have a new 128i convertible. Was looking to tighten up the steering a bit and add a nicer exhaust and intake sound. I want to do these things within the scope of the BMW warrenty. Has anyone had experience with the somewhat overpriced BMW Performance bits? They look nice and seem to be well built. But the exhaust and intake would be almost $2000 in parts. If they work well and keep the warrenty, I suppose that is fine. I don't want a boy-rcer sound to the car, just a nice, refined and throaty exhuast with a bit more torque. Ideas, thoughts?
<font color="#000000">2011 BMW 128i Cabrio</font>
<img src="http://lh5.ggpht.com/_ZBtrt14rL0w/THKI-1u31nI/AAAAAAAAAh8/-OozZ79CnlY/s128/bmw.jpg"><br>
<font color="#000000">2005</font> <font color="#0000FF">BMW</font> <font color="#C0C0C0">Lotus Elise</font><BR>
<img src="http://lh6.ggpht.com/_ZBtrt14rL0w/SiUezWYbkSI/AAAAAAAAAHw/LLHd8DgDhe0/s128/RGElise.jpg"><br>