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.
I am considering purchasing an Audi A4 1.8T and I was wondering what the boost is limited to from the factory? I was told 3.5 to 4 lbs. by my local Audi dealer but it sounds a little low.