Hey X5 enthusiasts!!
I just put a down payment on a mint 2005 X5 4.8is / LeMans blue / 90,000 miles (pics to come as soon as the transporter delivers her to me). I want to add a few upgrades when it arrives to boost fuel economy / BHP / ride. I know the 2 easiest best upgrades right off the bat are Cold Air Intake and cat-back exhaust. I would really like to get your personal opinions - if you have done any upgrades to your 4.8is. What works WELL? Are there affordable options? Where did you find your parts (links if possible please)? Anyone put in a backup camera?
Any and all suggestions are gratefully appreciated and respected - thank you so much. I am very excited to be a part of the X5 Owners Club!! Cheers!