ApplicationFor SILVIA/200SX - PS13/KPS13 - SR20DET - (1991-1993) For SILVIA/200SX - S14/CS14 - SR20DET - (1993-1999) For 180SX - RPS13/KRPS13 - SR20DET - (1991+) SpecificationQuantity: 4 pieces a set as shown in the pictureFeature- 100% Brand New - Increased Ignition Performance --- High voltage output and spark energy - Improved Combustion - Possible power increase of around 11kw (15hp) at the wheels - Improved throttle response and smoothness - No spark blowout at higher boost - Direct fit for factory mountings - Solid constructionNotice* Professional installation is highly recommended (No Instruction Included) * For any needs please contact us via message