Reed1 said:Denso PK20R11 OEM plug - Platinum
Denso Iridium Power IK20
CorollaGT said:I have exp it. Denso Iridium IK-22 make 4AGE 20V low end power suck and bad FC. Should go for IK-20.
TQ
Normally there are 2 source of leaking from them. The rubber surrounding the door loose or damage liao OR most likely the water proof plastic sheet inside the door got holes or not...