[mike@x-ph.com]

Evolution Racewerks Competition Series Mid Pipes F97/F98 X3M & X4M S58 Engine

Key Features:

Now available for the 2020+ BMW X3M/X4M S58 Engines!
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.

Evolution Racewerks Sports Series High Flow Catted Downpipes X3M/X4M S58 Engine

Key Features:

Now available for the 2020+ BMW X3M/X4M S58 Engines!
High Flow 200 cell metallic catalytic converter
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.
Mandrel Bent 3" piping. Smooth transition to the exhaust system.
100% Stainless Steel Construction
100% TIG welded for better quality welds
Precision CNC machined turbocharger V-Band flange.
Retains factory donut style gasket
Mirror polish or brush finish
Available with high temperature black thermal coating to reduce underhood temperatures.
Retains factory slip on style connection.
Compatible with the factory or aftermarket exhaust systems.
Track tested durability.
Includes all hardware for complete installation.
Limited Lifetime Warranty.

We use a 200 cell metallic core for our Sports Series High Flow Catted Downpipes. By having less cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through it more easily. Thus, the lower the cell count, the higher the flow. Higher flow = more power, faster turbo spool up (less turbocharger lag) and better throttle response. Bottom line, faster. The benefits of a metallic catalytic converter vs a ceramic like the factory is that it can take higher temperatures and is more durable (last longer). They are also lighter than their ceramic counterparts.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 significantly. The factory catalytic converter found in the factory downpipe is a big culprit of this and is a major exhaust flow restriction. The factory catalytic converter is made up of catalyst material formed into "honeycomb" weaves. Exhaust gas must pass through these tiny "honeycomb" weaves on their way to the exhaust system thus causing a major exhaust flow restriction. It also causes turbulence after the catalytic converter which causes the exhaust flow to slow down (which increases restriction). By replacing the factory downpipe/catalytic converter with our Sports Series High Flow Metallic Catted Downpipe, more power is unleashed!

Our Sport Series High Flow Catted Downpipes is 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. The factory turbocharger turbine housing utilizes a 3.5" V-Band flange which we have duplicated and CNC machined cut out of billet 304 stainless steel. Stainless Steel CNC machined O2 sensor and laser cut brackets are TIG welded using stainless steel rods. The O2 sensor is positioned at the factory location. The factory donut flange design is retained. 100% bolt on.

Our downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsover. The downpipes will come by default with brushed finish.

OPTIONS

Ceramic Thermal Coating - The purpose of ceramic coating downpipes is to keep heat from the exhaust gases inside the downpipe from radiating out. This keeps underhood temperatures lower and less heat absortion by nearby parts/surfaces. Another added benefit is that by keeping in heat (energy) in the exhaust gases inside the downpipe, exhaust flow velocities stay up, resulting in lower backpressure. The ceramic coating also adds additonal corrosion resistance. We utilize the best ceramic coating possible. Our thermal coating can resist up to 2000F of heat. It is available in black only (all the other colors cannot withstand heat that high).

[SeattleX4MC]

Anybody running this set up and if so how loud is it? I have the mid-pipe and want to add the downpipes. Just trying to make sure I do not piss of the neighbors...

[Mike02z]

Originally Posted by SeattleX4MC

Anybody running this set up and if so how loud is it? I have the mid-pipe and want to add the downpipes. Just trying to make sure I do not piss of the neighbors...

I ordered the mid pipe about a week ago. Awaiting shipping. Not planning to do downpipes. I just want more volume in Sport+

[r33_RGSport]

Originally Posted by SeattleX4MC

Anybody running this set up and if so how loud is it? I have the mid-pipe and want to add the downpipes. Just trying to make sure I do not piss of the neighbors...

Look on my thread.
I have plenty of videos on YouTube and my IG.