The car sounds better now than before.
It took me (with no mechanical experience) almost 3 hours to install with basic non-powered tools. (including time taking photos and learning) It was great to see first hand the measurement comparisions of the internal dimensions - the 1.5" OEM section verses the 2" end-to-end of the Mountune pipe. The fit and feel of the Mountune charge pipe is very strong and good quality - it's a shame I only see it when I remove the engine drip tray. Despite the restrictions of my stock tune, I feel the car now breathes a little better and the turbo flutter noise on throttle lift off slightly enhanced.
Very pleased with the presentation of the product, simple to construct and install. Pleasing increase in turbo noises, unsure on performance increase at this stage but acceleration does feel improved. Thanks.