Enhance both the sound and performance of your B58 while keeping the factory valved muffler intact!
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Not for Vehicles Equipped with the "M-Flap" Exhaust System (S1MAA / 01MA)
In Stock
ON SALE!
SAVE 40%
Lifetime Replacement
$356.99
$214.19 USD
This product was last offered at the strikethrough price on
11-07-2026
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