UNBOXING AND INSTALLING DYNAMIC AUTOWERX B58 5” DIAMETER CATLESS DOWNPIPE ON MY BMW 440i Gran Coupe!

I am very excited to be the first to show you guys how to replace your stock downpipe with the largest diameter Catless downpipe on the market for gen 1 and 2 B58 ! Dynamic Autowerx Is known for there upgraded high flow turbos for the B58 platform ! After installing this downpipe I have made huge power gains ! Surprisingly deep and aggressive exhaust sound with my stock exhaust. Subscribe to my channel for more mods and exciting ride alongs !! #b58 #a90 #440i #b58tu #racecar DAW 5” B58 #f36 #f30 #bmw #340i #240i #m140i #m240i #M340i #x3m40i