Will These Spark Plugs Be Good For My R33?

[NYTSKY]

Ive been cleaning my garage and found these plugs:

MOTOCRAFT PREMIUM DENSO serial no.SK20R11

They were in my mates XR6T for about a month.They look like iridiums.

Will they be an "upgrade" so to speak in my R33?

CHEERS

Dave

[Nabil]

Ive been cleaning my garage and found these plugs:

MOTOCRAFT PREMIUM DENSO serial no.SK20R11

They were in my mates XR6T for about a month.They look like iridiums.

Will they be an "upgrade" so to speak in my R33?

CHEERS

Dave

Don't be a Butcher

Use BKR6E NGK coppers and gap them to 0.78mm

& change them ever 5000km

Will set you back $3.85 a plug as aposed to $21 for

iridium or platinum.