Hi guys I'm looking a getting a k04 for my mk4 golf I'm speaking to some one that has one with low miles n still in the car so can get a ride to see what it's like n how it performs etc the kit will come with manifold down pipe decat turbo oil pipe lines N water lines n samco. Tip pipe, basically I'm after advice if I got this would I need a remap before I can drive it with it fitted and is there any other bits I'd need to upgrade? Cheers guy