X3M Exhaust sound and install of the racewerks evolution Mid pipes! This x3 m already had downpipes installed by us here at Speedhaus.

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Info from Racewerks!
Higher Max Horsepower Power Curve
Higher Intial Torque Curve. Torque curve hits faster and higher and longer.
Better throttle response and faster turbo spool up times
Deletes factory resonators for improved flow
Mandrel Bent 2.75" (70mm) piping. Smooth transition through the exhaust system.
100% Stainless Steel Construction
100% TIG welded for better quality welds
Precision CNC machined Flanges
Brushed Finish
Compatible with the factory or aftermarket exhaust systems
Track tested durability
Includes all hardware for complete installation
Limited Lifetime Warranty

Restrictions in the exhaust system robs horsepower and torque especially on turbocharged cars. Thus, removing as much exhaust flow restrictions will increase horsepower and torque. The factory resonators found in the factory midpipe is designed to muffle and quiet the exhaust flow however this causes a restriction to the exhaust flow. Our Competition Series Mid Pipes deletes the resonators from the exhaust system to improve exhaust flow. Coupled with mandrel bent tubing which also helps promote better flow, increase horsepower and torque can be had. At the same time, a more aggressive exhaust sound is produced.

Our Competition Series Mid Pipes feature a "H" style crossover. The crossover is used to equalize the pressure between the left and right exhaust pipes. This helps promote better flow and reduce droning. Through testing between an "X" and "H" crossover design, we found the "H" crossover design helped reduce droning and improving low end torque compared to the "X" crossover design. Thus, we incorporated an "H" crossover instead of a "X" crossover. At the end of the day, this is a BMW and we do not want droning. The factory mid pipe also incorporates a "H" crossover design so we figured BMW also felt the "H" design was the ideal solution for this appliation.

Our Competition Series Mid Pipes are constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by our in house fabricators and built in the USA. Our exhaust flanges are billet stainless steel that is computer CNC precision cut. The factory bracket hanger is retained. The bracket hanger is laser cut and TIG welded using stainless steel rods. High quality exhaust clamps are used to joint the mid pipes to the rear exhaust muffler section.

Our Competition Series Mid Pipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system designed for compatibility to the factory mid pipes.


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