EXHAUST SYSTEMS Aston Martin Vantage 4.0L – Cat Delete Downpipes (with Heat Blankets)- EXHAUST SYSTEMS Aston Martin Vantage 4.0L – Secondary Cat Spare Pipes- ECU TUNING ASTON MARTIN VANTAGE ECU TUNE [4.0L BITURBO]Power Gains:Stage 1: +80-100hp / +120-130tq (octane depending)Stage 2: +100-120hp / +150-160tq (octane depending) 7 reviews -