DCE Parts equal length catback (polished quad tips)
Fitted by
PSR Parts workshop, Woerden
Photos
PSR Parts
The Story
Before you add power, make sure the engine can handle it. That was the thinking behind this black BMW F87 M2 Competition, which came to our workshop in Woerden for a DCE Parts S55 charge pipe and boost pipe kit, plus a DCE Parts equal length catback with polished quad tips.
The S55 twin-turbo straight-six in the M2 Competition responds brilliantly to tuning, but the factory boost plumbing is a known weak point. The OEM charge pipes and boost pipe, which carry pressurised air from the turbos through the intercooler to the throttle body, are made of plastic with plastic connections. Heat cycles make the plastic brittle over time, and as soon as boost pressure is raised with a remap, the pipe can crack or a coupling can blow off. The result is a sudden loss of boost, limp mode and a car stranded at the side of the road.
The DCE Parts S55 charge pipe and boost pipe kit replaces those parts with metal pipes and secure couplers. Metal does not fatigue in the same way, it holds its shape under high boost and the connections stay in place. A smoother inner wall also helps airflow and throttle response. It is one of the first parts we recommend for every S55 owner planning a Stage 1 or Stage 2 remap, and it is just as useful on a standard car that is getting older. The same kit fits the F80 M3 and F82/F83 M4 as well.
With the intake side secured, the exhaust gets the attention. The DCE Parts F87 M2 Competition catback is an equal length and single midpipe hybrid design. Equal length routing means the exhaust pulses from both groups of three cylinders travel the same distance, so they merge evenly and produce a smoother, more cohesive straight-six note. Combined with the high flow single midpipe and valved rear silencer, the M2 Competition gets a deep tone at idle, a sharp, raspy edge at high revs and less back pressure. The valves keep working with the factory controls, so the car can still be quiet when needed. Polished quad tips finish off the rear.
Together, these parts form a solid base for a remap. If you go on to tune the S55, the software should be matched to the hardware, and we also recommend considering a crank hub upgrade on tuned S55 engines.
Want to prepare your F87 M2 Competition, F80 M3 or F82 M4 for more power? Order the DCE Parts S55 chargepipe kit and equal length catback at PSR Parts, or book your installation in the PSR Parts workshop in Woerden.
DCE Parts ships from the Netherlands (EU). For orders to {land} we charge 0% VAT. Import duties, local taxes and customs clearance fees are not included. They are charged by the carrier or customs on delivery and are payable by you.
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