APR Iridium Pro Spark Plug 14X19X16mm | VW · Audi B7 S4 4.2L V8 Street Bushing Set (BSH01A0) /

Street Bushing Set (BSH01A0) / Track Bushing Set (BSH01A1)

but can be compressed by hand

Set it to stock

0 TSI engine and transmission

APR Iridium Pro Spark Plug 14X19X16mm | VW · Audi B7 S4 4.2L V8 Street Bushing Set (BSH01A0) /APR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials, can dissipate heat more easily, is better