JB4 for 2025+ Audi B10 S5 SQ5 DB6 We use Helical valves imported

We use Helical valves imported directly from the U

We have removed the heavy and baffled silencer boxes from each side which unrestricted the gas flow exiting the car

** Fits two double exhaust ends **

Ford Fiesta ST Mk8 / Mk8

Do NOT even waste your time

JB4 for 2025+ Audi B10 S5 SQ5 DB6 We use Helical valves importedPower gains of up to 70hp The JB4 PRO is the newest, most advanced and highly featured tuning system available for your 2025 Present B10 powered Audi. Power gains are up to 70hp to the wheels (85hp crank) on a completely stock car on pump gas, gains with bolt on parts, higher octane, E85 mixtures are even higher. The JB4 features a simple plug and play installation harness for easy installation & removal and includes many features not found with any