Spark plug Bosch or BERU

Since Iridium is tough, and there is platinum at the tip of the movable electrode, I bought Bosch Iridium.

Bosch W7DTC plugs were the best, caint get them no mores, use NGK BP6ET plugs instead.

Bosch F3cs @27psi no issues and no gapping

I pulled the plugs this morning and replaced them with Bosch cooper plugs, the only match that was available in local Autozone. There are no more misfires (for now), which makes plugs the culprit.

Currently Running Bosch - Fusions - for Spark those seem to have Smoothed the Motor - 1 step Cooler .

The plug they sent me (Bosch #4417 FGR7DQP Platinum +4) runs absolutely fine on my engine, actually it feels better then before, but I just worried if it is indeed not the correct plug, will it do harm to my engine?

Bosch FR8DC+ perform well and you won't have to worry about seized plugs. You might have to change them sooner.

Bought Bosch platinum's and red bremi wires. swap everything all out, the misfires alot worse.

Personally I've never had any luck with ngk's in any of my vr's always just run Bosch plugs and wires....

First step, get those Bosch Platinums to a trash can where they belong. Even when I was in Bosch Fuel Injection Training School back in the early 90's, the Bosch Instructors were telling us not to put them in anything unless we wanted to start chasing driveability issues.