LancerShop highly recommends changing the spark plugs in your EVO 9 frequently
for improved ignition, better gas mileage, and improved throttle response. If
your EVO9 is modified, you will want to inspect your plugs regularly for fuel
deposit build up, corrosion, etc.
TECH TIP: Price includes a set of (4)
spark plugs. These R7437-8 plugs are (1) step colder then the stock plugs. If you EVO 9
is modified you will want to run (1) step colder plugs.
Fits: Mitsubishi Lancer Evolution 9
Part #: 4901