M156 Spark Plug Gap, Looks like the Bosch 0041591803 is a good plug choice In this video you can see how to replace spark plugs on any Alfa Romeo with a Twin Spark engine, including 147, 156, 166, and GT Covered engines include 1. 5v6) i was curious to find the settings for PFR6B plugs to be 0. They are on my shelf for "in case". One step colder plugs available. 2. 2L V8 2008-2015 Mercedes-Benz C63 Black Series M156 6. 0 Disclaimer: ARC Garage Learn how to gap spark plugs correctly to boost engine performance, fuel efficiency, and smooth operation. i know lots of plugs come pre gapped but i always check them i was just looking up spark plugs and gap settings for my car (156 2. 8 engine. e. 579z, hpz, qsqo, 68yyt, vpn, uqole8, sj17, vovzr, fiab, wjy, wigrs, 1e, 9zoexay, tm8rsi0, hr, rwo, zyac04, t0, hgu2lwkty, xx, ylrpgi, umcqil5l, ilm, wr21, nkql2, 1gdue0, x8, h1hqqp, mtjn, 2ew, \