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Not to revive an old thread but was hoping someone could shed light on this.
The original part numbers everyone was using is:84177431 and 84177432.
One website said it was replaced by: 84491863 and 84491864.
They are slightly different in price and shipping is much less on most websites. I'm just wondering if there is an actual difference between these two part numbers or how I could actually find out before I order one or the other?
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'16 2SS, M6, Borla Atak |