The NGK BPR8ES are 1 heat range
cooler then the stock Evolution spark plugs. These cooler plugs have additional detonation
resistance, and are more prone to fouling as compared with the stock OEM spark
plugs. Price includes (4) spark
TECH TIP: We suggest you
change your plugs every 3-6 months to ensure a correct spark under high boost.
These plugs are copper so they need to be change more frequently.
Part # 3923