Proper maintenance of the naturally aspirated flat-six engines found in the 991 generation Porsche 911 GT3 is paramount. Whether you are servicing the 3.8-litre engine of the 991.1 or the 4.0-litre MDG.GA engine in the 991.2, safeguarding a 9,000 rpm redline requires strict adherence to upkeep schedules. We supply comprehensive Service Kits and premium Engine Fluids formulated to provide optimal lubrication under sustained high engine speeds. Routine replacement of Service Filters maintains airflow and oil integrity, whilst installing fresh Spark Plugs guarantees precise ignition timing across the entire rev range to prevent high-rpm misfires.