Hi guys, having my rocker cover gasket done on my 93 WRX tomorrow.

Just wondering, as he's doing the spark plugs, shall I buy 4 and get him to do both sides? Or just go for the 2 on the drivers side he's working on.

Ohh & which spark plugs should I go for? Will have to get them from Halfords or a motor factors tomorrow so can't hang about to get any special make delivered.

 

Do all 4.
NGK PFR6B gapped to 0.7mm