When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just got my 08 IS 250 awd (made sense here in IL...) and my local tuner shop came up with a Borla exhaust and KN intake, claiming "significant" power increase... anyone out there with experience on this combo ? I am thinking Borla might be too high pitched or..?
I invite you to use our forum search feature to search the 2nd gen IS (and subforums) for keywords such as 'Borla' and 'intake' and you'll get a lot of good info.
I invite you to use our forum search feature to search the 2nd gen IS (and subforums) for keywords such as 'Borla' and 'intake' and you'll get a lot of good info.