This is for those wanting to extract the ultimate from there K04 turbo, we believe this is not only the best looking but best performing K04 manifold available. Our own testing has shown up to 20BHP gains coupled with lowered exhaust gas temperatures of around 95deg. With a hybrid turbo setup and good mapping 330 bhp achievable. Made from 321 stainless in 3mm thick wall tube these are also very durable. The K04 tubular manifold will fit in the stock location using the original boost hoses and brackets. Please note due to restricted access we do advise removing the cylinder head to fit this product ( although it is possible without some nuts are very difficult to access).