denso plugs

[Anonymous]

can i run IK22 Iridium spark plugs (cold)?

[mrzwei]

Most, if not all, ecu's expect a specific performance from the plug so my view would be that it is risky to move too far away from the recommended spec.
Sorry, but a Saab example, anything other than the stock spec plug causes stuff like pinking problems. Having said that, the operating system is very different from the one used on the 2. Try them, see how they run, pull them after a few miles and see what they look like?