Hello,
I use ONLY Bosch plugs in my customers red blocks, unless the motor is a high performance motor and if Bosch had a REAL platinum plug for the red blocks, I would use them.
Bosch just recently discontinued the non-resistor style of plugs for the B18/B20/B30 and changed the number to WR7BC.
The correct Bosch plug for a B16 was W7EC, which I have in stock.
But I believe that Bosch just updated them to a WR7EC.
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Eric Hi Performance Automotive Service (formerly OVO or Old Volvos Only) Torrance, CA 90501
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