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'Dinan's high flow intake system for the 550i dramatically increases intake air-flow volume and velocity as well as ensuring the lowest possible intake air temperatures for maximum power gains
Exhaust System - PRO DPF Series - Filter Back - 5 in Diameter - 6 in Stainless Polished Tip - Stainless - GM Duramax - GM Fullsize Truck 2024-25 - Kit
Exhaust System - Outlaw - Cat-Back - 3 in Tailpipe - 3 in Tips - Stainless - Black / Natural - 5
5 inch catalytic converter is used to minimize restriction through the catalyst before transitioning to the factory mid pipe
Exhaust System Y-Pipe GM F-Body Air Intakes 'Dinan's high flow intake systemExhaust Y Pipe 2. 25 in Inlets 3 in Outlet Stainless Natural GM F Body 1986 89 Each