all the ko4 kits are plug and play pretty much...I follow paddy mcgrath from super speeders who had the IE ko4 kit + manifold and software and I think he dyno'd around 330
This is true minus Hpa's ko4 kit. Hpa's "hybrid ko4" is far from a hybrid also it's basically a ko4 turbo assembled by Hpa with no borg warner oem parts. All the other ko4s sold by name brand companies are oem borg warner ko4s that have either have the dv housing on the turbo or a dv relocation kit is provided like cts ko4 kit.
I recently had a CTS K04 kit put on and love it. I have put a few thousand miles and no issues so far. I have a local shop that did the work and they are a CTS dealer and stand by the product. What are the reasons everyone hates CTS?