Manifold and turbo are installed with the oil feed and drain. The manifold if a shorty tubular ( on the LHT Type R) which allows for a true 3" downpipe. This is AC compatble , it has ample room for the factory AC fan so everything functions.The manifold is Thermal coated black , This helps with under hood temps.
The downpipe has the Waste gate routed back into the exhaust .This is not only sounds better but makes it easier to hear other things that might go on under the hood. Some say this is restrictive, We have used this method on 600 + HP cars.