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Upgrade your weak plastic S58 oil filter housing cap
Our intercoolers allow for higher HP gains
Install takes 5 minute
These scoops are designed to direct ambient air into the feeds for the intake system helping to maintain consistent intake air temperatures when on the move
Lifetime WarrantyA wheel you can depend on
MAD BMW S58 3.5" Fat Boy Downpipes M2 M3 M4 G87 G80 G82 G83 g2x Upgrade your weak plastic S58The MAD 3. 5" S58 Fat boy is the largest BMW S58 catless downpipe on the market! Upgrade from the stock S58 downpipes to the MAD 3. 5" Fat Boy S58 catless downpipes for maximum airflow, power, and sound! Upgrade to the MAD BMW 3. 5" Fat Boy S58 downpipes to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos can now spool faster and achieve maximum power. As a bonus, your car will sound a
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