I saw a new ko4 turbo upgrade kit for the 2.7t on ebay for around $1300.00. It includes 2 turbos and the rs4 inlet pipes necessary for the upgrade. But they are aftermarket-not oem. They do have a 1 year unlimited warrantee, but should I be wary of aftermarket parts? does anyone have experience with these?

 

interested in this as well, I have been reading mixed reviews of the RP? ko4 turbos.

 

Can't help you and eBay makes me nervous. ECM offers a kit with turbos and fuel injectors for around $1500. I believe Awe may also offer a kit. I would encourage buying from an established retailer. It may cost a couple hundred more, but you have access to technical support and a warranty (from a supplier you can find the following week). Let us know how you make out. I'm thinking of this upgrade when my K03s finally die.