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This will fit M340i models as well since those are M Sport equipped right out of the factory
Pre-LCI or LCI
That's why we engineered the Ghost Underseat Subwoofer Upgrade System to perfectly and seamless match our legendary Stage One Speaker Upgrade Kit and Revenant Amplifier Upgrade
here at Kies Motorsports
(G42) M240 2021-2025
MAD B58 4.5" Catted Downpipe W/ Bracket BMW F, G Chassis & Supra BMW-E36-8 Z3 M-2002 This will fit M340i modelsUpgrade your stock B58 downpipe to the MAD B58 4. 5" Catted Downpipe and unleash the full potential of your BMW F, G Chassis, or Toyota Supra. Designed to maximize airflow, power, and sound, this downpipe is the perfect performance upgrade for your vehicle. By replacing your stock catalytic converters with the MAD B58 catted downpipe, you'll eliminate the backpressure that restricts your turbo's performance. This means faster spooling and the ability
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