Porsche specialist.
Sales
Porsche for sale
JZM sell exceptional pre-owned Porsche focusing on GT’s, RS’s, R’s, limited editions and sublime 911 classics. You’ll find most of our Porsche (and a few other special marques) for sale in our showroom, but there are others not listed. Let us know what you are looking for.
The JZM sales inspection
We research the provenance of each Porsche before it undergoes our exacting pre-sale inspection in the workshop. For every Porsche that does reach our showroom, there are others that don’t. This process facilitates our acquisition and supply of the finest quality cars that our customers look for.
Sales warranty
JZM is recognised as one of the UK’s leading Porsche specialists, built on a history of the exceptional Porsche we have bought, sold and serviced. All JZM Porsche carry a warranty, call us for details.
Service & tuning
Porsche service & tuning
Every Porsche in for servicing and tuning at JZM goes through our bespoke health-check inspection as standard. We’re always happy to go through the report with you afterwards, the more you know about your car, the better.
Porsche service
Our original Porsche servicing and diagnostics equipment is probably the most comprehensive collection in the UK. JZM were the first Porsche PXN (Porsche eXternal Network) independent specialist in the UK and have always been updated up to the latest PIWIS Ⅲ. We also have a direct data and comms connection to Porsche HQ.
Porsche tuning
JZM’s extensive tuning experience comes from the knowledge of what works and what doesn’t. We are enthusiastic yet realistic refiners of Porsche only recommending and fitting the best bits – tried and tested parts that really work. Manthey Racing might be considered at the pinnacle of Porsche tuning, we’ve been approved fitters since 1999.
Storage
Porsche storage
JZM Storage is located north west of London, just off the M25 between the M1 and M40 junctions. Outside of the ULEZ zone. We’re not far from Kings Langley train station, a short journey from Heathrow and Luton airport, or you can land your helicopter just up the road. Accessible, convenient, care and security.
Peace of mind
With our showroom-level storage space, plus having worked on Porsche for over 40 years, we know the cars well enough to provide a first class service. Whilst your Porsche rests with us we can also service, MOT and provide other work required in our own workshop, ready for your car’s next adventure.
Parts
Porsche parts
Porsche deserve the right parts starting with no less than OEM, and better as specified. We only stock brand parts that we know are the best. We don’t stock to profit or for commission even when they take a little longer to arrive but they’ll be better for the drive.
Performance guarantee
The reputable brands that make high quality parts stand by their product performance and provide guarantees. We believe what goes on must make the car better, and the driver happier. Complete peace of mind because should anything happen… no headaches.
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