Compatibility List BMW M3 E36 3.2L (S50B32) BMW M5 E39 (S62B50) BMW 3 Series E36 MK2 - 320i (M52B20) 323i (M52B25) 328i (M52B28) BMW 3 Series E46 - 320i (M52B20) 323i (M52B25) 325i (M52B25) 328i (M52B28) 330i (M54B30) BMW 5 Series E39 - 520i (M52B20 M54B22) 523i (M52B25) 525i (M54B25) 528i (M52B28) 535i (M62B35) 540i (M62B44) BMW 7 Series E38 - 728i (M52B28) 735i (M62B35) 750i (M73B54) BMW 8 Series E31 - 850i (M73B54) BMW X5 E53 - 4.4i (M62B44) BMW Z3 - Z3M (S50B32) 2.0i (M52B20) 2.8i (M52B28) BMW Z8 (S62B50) All TU & TUB variations of the above engine codes HP Ignition Uprated Coilpacks Specifications Specially 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 Graph Comparison carried out by our partner W-Autosport using a bone stock Nissan 200SX S14 with an SR20DET engine.