Performance Spark Plugs

[Killjoy22]

Are there any type of spark plugs that claim to increase performance of a car ? I'm driving a 2001 corolla and want to change them out

 

[Jperreault]

NKG Iridium Plugs. Toyota uses Iridium spark plugs (Long Life) . I replaced my original after 120,000 KM. NKG IFR5T11 or BKR5EIX-11. If you want something less expensive for peek performance and don't mind the higher services maintenance schedule use the E3 E.48. The E3 uses a copper core and will require replacement around 30,000-40,000 KM for better performance. Remember to change the Wires. If you have a weak spark... replace the coil packs, but watch as their pricy. The only issue I had was one of the coil packs was a little hard to reach and I accidentally cracked a plastic tab.