Pair 2.5" 63mm In/out Adjust Sound Value Muffler Exhaust + Exhaust Valve 10*9"

(1) BMW (63mm commonly seen in 2.0T/3.0L naturally aspirated/diesel engines, entry-level performance). 2.0T N20/B48 series (most mainstream 63mm). Golf series (63mm original/modified standard). (2) Audi (63mm commonly seen in 2.0T EA888, 1.8T, 3.0T low power, diesel).

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