Manufacturer
JSR Engineering
Engineered and made in Denmark - CNC machining, hand assembly, product development, custom bore machining and technical support, all in-house.
Dealers & distributors
Represent Rennen ITB in your region.
Rennen ITB is engineered and manufactured by JSR Engineering in Denmark and distributed worldwide by Rennen Plus. The UK and Europe are served exclusively by Design 911. Other territories are open - and we’re selective about who represents the product.
Manufacturer
Rennen Plus
The global distributor for Rennen ITB and JSR Engineering’s authorised representative, managing the dealer network and supply outside exclusive territories. All enquiries: info@rennenplus.com.au.
Design 911
Rennen ITB systems are distributed exclusively in the UK and Europe by Design 911, the Porsche parts specialist.
Rennen Motorsport
Adelaide’s dedicated Porsche workshop and PPN member - the testing and installation team behind the Rennen ITB validation programme, with 30 years of air-cooled Porsche experience.
What we look for
The right partners, not the most partners.
Air-cooled credibility
Workshops, engine builders and retailers with a genuine track record in classic Porsche.
Tuning capability
Access to dyno facilities and standalone ECU calibration - ideally MoTeC experience.
Regional reach
Distributors who can develop a territory outside the UK and Europe, with installer support.
Dealer application
Apply to become a dealer or distributor
Tell us about your business. Applications go directly to the distribution team; we respond to every serious enquiry.