EVOLUTION RACEWERKS B58 COMPETITION SERIES 4.5" CATLESS DOWNPIPE - F3X 340i, 440i | G3X 5-SERIES

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  • $529.99
  • Regular price $545.00
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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 Competition Series 4.5" Catless Downpipe, more power is unleashed!You will feel the difference instantly. While the 32whp and 16wtq gains are awesome, one of the best aspects of the downpipe is that the gains are not just peak gains. Examine the dyno graphs and you will notice the powerband shifting to the left. What this means is that turbo lag is reduced with power coming on faster. Gains are throughout the powerband as well. Your car will feel like a totally different beast. As if it had woken from it's sleep!

 

Key Features:

  • Fitment for the new BMW B58 Engine
  • Higher Max Horsepower Power Curve
  • Higher Intial Torque Curve.  Torque curve hits faster, higher, and longer
  • Better throttle response and faster turbo spool up times
  • Mandrel Bent 4.5" 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
  • Brush Finish (standard) or optional Polish Finish
  • Available with high temperature Black Thermal Coating to reduce underhood temperatures
  • Optional - Additional O2 sensor bung for wideband O2 sensors (comes with pre-installed plug)
  • Optional EGT sensor bung for EGT gauges (comes with pre-installed plug)
  • Compatible with the factory or aftermarket exhaust systems
  • Track tested durability
  • Includes all hardware for complete installation
  • Limited Lifetime Warranty

 

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 VEHICLES IN THE STATE OF CALIFORNIA. 

The item is for sale for international customers without restriction.