2006-2010 Ignition Coil Packs Mazdaspeed 3 Speed 6 Cx-7 Cx7 Mx5 Mx-5 Miata 2.3l Improved Combustion, No spark blowout at higher boost Increased Ignition Performance, Direct Bolt in part / No modifications required Increased BHP and economy, Solid construction Improved throttle response and smoothness Direct Bolt in part / No modifications required