Read this thread before you waste time and money developing these headers:
They don't think it's worth putting a header on the car because the stock manifolds are so good. And they're a race team.
2015 GTI S, 6M, LP, Volk TE37SL 17x8.5, Michelin PSS 245/40, HPA SHS Coil-Overs, Peloquin LSD, Sachs SRE, Eurocode F/R Sway Bars, SuperPro Control Arms, Remus Catback, APR Stage 1 Tune, APR CAI, Aero Force Gauge Pod, APR Boost Gauge, Kersher Front Lip, Short Shifter, Tyrolsport Deadset, Stoptech BBK, HPA Dogbone
2008 BMW Z4 3.0si Coupe - because racecar