Evolution Racewerk's Competition Series Catless Downpipes is constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by ER's 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.
These 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.
NOTE - There are two versions of the N63 downpipes. Make sure you order the correct unit. They are not interchangeable. If you are unsure which version you have, contact us and we will help you find out which version you need.
The N63T version which is found in the early model 550i and 650i (2011 to early 2012 model). This version uses a flange bolt design to attach to the exhaust system.
The N63TU version which is found in the late model 550i and 650i (late 2012 to present). This version uses a slip on clamp design to attach to the exhaust system.
CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution controlled vehicles upon public road/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. In addition to vehicle use verification, a Vehicle Compliance Waiver needs to be signed.
THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHILES IN THE STATE OF CALIFORNIA.
The item is for sale for international customers without restriction.
A COMPLIANCE WAIVER MUST BE REVIEWED AND SIGNED BEFORE PURCHASE. ITEM IS NOT FOR SALE IN CALIFORNIA. PLEASE CONTACT US FOR MORE INFORMATION.
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. This thermal coating can resist up to 2000F of heat. It is available in black only (all the other colors cannot withstand heat that high).