Toyota Supra (A90) - Secondary OPF Spare PipesThe A90 MK5 Supra Capristo demonstrated 21PS gains on the dyno when the Secondary OPF Spare Pipes were combined with our Valved Exhaust. These lightweight spare pipes fit in place of the heavy secondary pipes on the new Supra. Using spare pipes removes the flow restriction the OPF Filters place on an exhaust system, while increasing the horsepower. The silencing effect of the OPF Filters are also removed, enhancing the aggressive engine sound. Spare