Jaguar Gearbox Tuning unlocked Viezu and Paramount Performance are delighted to announce that we are now able to tune 6 speed ZF 6HP26 and 6HP28 Gearboxes. Our Jaguar Gearbox Tuning service is priced at an unbeatable £299.00*. Our highly experienced technical team has perfected the art of fine-tuning the Jaguar 6-speed automatic ZF 6HP26 and […]