Compatibility ListAlfa 159 (05-13) 3.2JTS 260 V6 24V - 939A000Alfa Brera (06-10) 3.2JTS 260 V6 24V - 939A000Alfa Spider (95-03)3.0i 220 V6 24V - 16102Alfa Spider (06-10) 3.2JTS 260 V6 24V - 939A000Cadillac BLS (06-09 2.8i 255 V6 24V Turbo - B284LCadillac CTS (03-07) 2.8i 215 V6 24V - LP1Cadillac CTS (03-07) 3.6i 258 V6 24V - LY7Cadillac CTS (2007+) 3.6i 310 - LLTCadillac Seville (2005+) 3.6i 258 V6 24V - LY7Cadillac SRX (04-09) 3.6i 258 V6 24V - LY7Cadillac STS (2005+) 3.6i 258 V6 24V - LY7Opel Signum (05-08) 2.8i 230 V6 24V Turbo - Z28NEL / LDQOpel Signum (05-08) 2.8i 250 V6 24V Turbo - Z28NET / LP9Opel Vectra (05-08) 2.8i 230 V6 24V Turbo - Z28NEL / LDQOpel Vectra(05-08)2.8i 250 V6 24V Turbo - Z28NET / LP9Opel Vectra OPC (05-08) 2.8i 255 V6 24V Turbo - Z28NET / LP9Opel Vectra OPC (05-08) 2.8i 280 V6 24V Turbo - Z28NET / LP9Saab 9-3 (2007+) 2.8i 255 V6 24V Turbo - B284LSaab 9-3 (2007+) 2.8i 280 V6 24V Turbo - B284RHP Ignition Uprated Coilpacks SpecificationsSpecially designed for tuned engines operating at high revs and temperatures the HP Ignition coilpacks offer superior resistance and quality compared to OEM ignition coils. The installation of HP Ignition coilpacks will solve all common ignition problems such as misfires and hesitant performance.The HP Ignition coilpacks provide a gain in horsepower and torque up to 4 % thanks to their high and stable voltage ensuring a powerful spark even at high revs. The installation is totally plug & play without any modifications or adjustments necessary.Comparative Performance GraphComparison carried out by our partner W-Autosport using a bone stock Nissan 200SX S14 with an SR20DET engine.