Anyways, I put in so Bosch Tri-Electrodes and Beru coilpacks. Once I got the APR ECU back the car fired right up. I drove it for a good hour and no misfires!!!
In my B3 Vr6, about 3yrs ago, I swapout the NgKs to Bosch Fusion 4-prones and my mileage went from 17 or so to 32mpgs. My car responded better and better mileage.
I've been using Bosch FR8LDC in my car for years with good results.
Now running the Bosch +2 Platinums and my MPG jumped from about 21 to 25! A lot of others will tell you not to mess w/ the platinums but they are doing well for me.
I got... bosch platinum plus plugs... and you could feel the difference right away with the new plugs. started faster, idled smoother
As for your plugs, bosch is deff the recommended brand, but just about any high quality plug designed for your engine will work fine. (im currently running platinum in mine, and their fine, but lots of people have reported idel issues with them.) The motor was designed around a copper plug, so thats what it should run on best. so bosch copper is deff the way to go.
Changed spark plugs, wires, cap/rotor with Bosch bits (w7dtc not those crappy +4s)
Do not use the Silber plugs. Mileage and performance suffers.
I've had nothing but trouble with the Bosch plugs, from their cheap-o line to their IR Fusion line...
this summer I switched from oem to platinum bosch plugs and just recently took to dealer and had plugs changed as they said the platinum plugs in fsi engine will cause some fuel to not burn properly.
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