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Evolution Racewerks Sports Series 4-Inch 200 Cell High Flow Catted Downpipe Brushed Finish BMW 640i N55 12-16 | BM-EXH009SCAT

Evolution Racewerks . BM-EXH009SCAT

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Brand name, Manufacturer name, ManufacturerEvolution Racewerks
CategoryL1Exhaust Parts
CategoryL2Downpipes
CategoryL3Evolution Racewerks Sports Series 4-Inch 200 Cell High Flow Catted Downpipe Brushed Finish BMW 640i N55 12-16
Extra Product NameEvolution Racewerks Sports Series 4-Inch 200 Cell High Flow Catted Downpipe Brushed Finish BMW 640i N55 12-16 | BM-EXH009SCAT
keywordsEvolution Racewerks Sports Series 4-Inch 200 Cell High Flow Catted Downpipe Brushed Finish BMW 640i N55 12-16 BM-EXH009SCAT
moq, multiple, tierMinQty11
MPNBM-EXH009SCAT
qtyInStock0
SKU151450431
snippetRestrictions 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 Evolution Racewerks' Sports Series 4" High Flow Catted Downpipe, more power is unleashed! The factory catalyter uses a 400 cell ceramic core. What the 400 cells means is that per every inch, there are 400 "cells" that the exhaust gas must pass through. Evolution Racewerks uses a 200 cell metallic core. By having less cells per square inch, these individual "cells" are bigger in size thus allowing exhaust gas to pass through it more easier. 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 more heat and is more durable (last longer). They are also lighter than their ceramic counterparts. Evolution Racewerks' Sports Series Catted Downpipes is constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by Evolution Racewerks' in house fabricators and built in the USA. The factory turbocharger turbine housing utilizes a 4" V-Band flange which Evolution Racewerks 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. Since the outlet of the turbocharger is 4" and the factory exhaust system is 2.5", the factory downpipes reduces size using short transitions from 4" before the catalytic convert and 2.5" afterwards. Due to space needed for the cataylic converter, the factory downpipes reduce in size using very short transitions. Since Evolution Racewerks' catted downpipes utilize a s more compact cataylic converter, Evolution Racewerks' has more space. Thus, Evolution Racewerks uses very long transitions. These longer transitions allow the exhaust gas time to smoothly transition from the larger piping to the smaller. This results in less exhaust turbulence and backpressure which again improves throttle response and increase turbocharger spool times (less turbocharger lag). The factory downpipe utilizes a flex bellow section that allows the exhaust system to move. This eliminates undue stress on the exhaust components like the exhaust system, downpipe, turbocharger and exhaust manifold. Many of Evolution Racewerks' competitors do not feel it is important to keep this. While you do not see any adverse affects right away, over time, the stresses caused by not having a flex section and having a rigid exhaust system will cause premature wear and tear. Any stress failures like cracks will form quicker than usual on exhaust manifolds and exhaust components. Also, without a flex section, the exhaust system cannot properly deflect impact. Especially on lowered cars, whenever the exhaust system contacts the ground, the entire system gets pushed up. Without a flex, you can imagine how much stress is put into exhaust components like the exhaust manifold when the exhaust is pushed upwards. Evolution Racewerks fully understand that durability of Evolution Racewerks' products is important. Thus, like BMW, Evolution Racewerks incorporates a flex section into Evolution Racewerks' downpipe. Evolution Racewerks' flex sections are 100% stainless steel (cheap flex sections only have stainless steel center braids and steel caps) to ensure corrosion resistance. Evolution Racewerks also retain the exhaust hanger like the factory downpipes to help support the weight of the exhaust system. Evolution Racewerks' downpipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system. There are no compatibility issues whatsover.<br><br><strong>Features:</strong><ul><li>High Flow 200 cell metallic catalytic converter used.</li><li>Higher Max Horsepower Power Curve.</li><li>Higher Intial Torque Curve. Torque curve hits faster and higher and longer.</li><li>Better throttle response and faster turbo spool up times.</li><li>Mandrel Bent 4" piping. Smooth transition to the exhaust system.</li><li>100% Stainless Steel Construction</li><li>100% TIG welded for better quality welds</li><li>Precision CNC machined turbocharger V-Band flange.</li><li>Stainless steel flex section like factory that allows proper exhaust movement and flexibility.</li><li>Compatible with the factory or aftermarket exhaust systems.</li><li>Track tested durability.</li><li>Includes all hardware for complete installation.</li><li>Limited Lifetime Warranty.</li></ul><strong>Fitment:</strong><ul><li>BMW 640i N55 12-16</li></ul><strong>Notes:</strong><ul><li>Images used for marketing purpose only actual product may vary!</li><li>This product is intended for OFF ROAD USE ONLY.</li><li>Not legal for use on pollution controlled vechiles upon public highways.</li><li>This item is not for sale, installation, or use on licensed vehicles in the state of California.</li></ul><br>
tierPrice1895.50

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