Fitting a wide range of early B58 powered models, from the M140i and M240i to the 340i, 440i, 540i, 640i and 740i,...
Fitting a wide range of early B58 powered models, from the M140i and M240i to the 340i, 440i, 540i, 640i and 740i, the BMW B58 F Series G30 Z Pipe swaps out the restrictive factory section so the turbocharged straight six can clear its exhaust gases with less effort. Precision mandrel bent 304 stainless steel tubing keeps the internal diameter the same from start to finish, giving steady flow and real toughness against heat, rust and daily road grime. With less back pressure to work against, the turbo wakes up sooner, so the car reacts faster to the throttle and builds speed with a smoother, stronger surge. The BMW 340i 540i 740i Z Pipe also gives the engine a richer straight six character, with a sharper note under load and light crackles on lift off, while staying calm and drone free on long motorway runs. Accurate flanges and tidy TIG welds bolt straight to the factory mounting points without any cutting.
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Lifetime Warranty
Every DKU Performance exhaust system comes with a lifetime warranty for the original purchaser, providing you with complete confidence and peace of mind for the road ahead.
UK Manufactured
All DKU Performance exhausts are proudly manufactured in the UK using certified grade 304 stainless steel and are TIG welded to ensure a high-quality, durable finish.

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