Evolution Racewerks 2016+ BMW 40i B58 Engine Turbo Competition Series 4.5" Catless Downpipe

$436.00 - $512.00
SKU:
.BM-EXH018S
Adding to cart… The item has been added
Product Description

Application:

  • BMW 2016+ F22 M240i, M240iX
  • BMW 2016+ F30 340i, 340iX
  • BMW 2016+ F32 F33 F34 440i, 440iX
  • BMW 2020+ G42 G43 M240i
  • BMW 2019+ G20 M340i
  • BMW 2022+ G22 G23 G24 M440i
  • BMW 2017+ G30 540i, 540iX
  • BMW 2019+ G14 G15 G16 840i
  • BMW 2018+ G01 X3 M40i
  • BMW 2018+ G02 X4 M40i
  • BMW 2018+ G05 X5 xDrive40i
  • BMW 2019+ G07 X7 xDrive40i
  • BMW 2019+ G29 X4 40i

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

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!

The new turbochargers on the B58 engines utilize a much larger 4.5" outlet compared to the 4" outlet on the older N55 engines. If we ran a 4" downpipe flange inlet so that we can use 4" tubing, a "step" would be formed between the turbocharger outlet and downpipe inlet. Exhaust gas for the turbocharger would hit this "step" and a lot of turbulence would form at this point and cause backpressure. Backpressure this close to the turbocharger would greatly affect performance. Thus, to ensure that we get unobstructed flow from the turbocharger outlet to the downpipe inlet, we had to CNC machine a new 4.5" flange to match. This allows a seamless transition and eliminate any possible turbulence which would cause backpressure. Though this presented another challenge for us as 4.5" tubing is not readily available and hard to source. Our motto "Performance, No Compromise" prevailed at the end and through hard diligence and many phone calls, we finally found a source for the material.  Even though the material was considerably more expensive than standard 4" stainless steel, we wanted to give our customers the best by producing the best product possible.

Notice of Fault Codes/Check Engine Light - Using any Racing downpipe could result in a check engine light and fault codes, even with sport cats. Although we have heard of cases where no check engine light appeared, these Racing downpipes are not designed to meet emissions testing and regulations. Race software that is specific to your mods is strongly advised to better adapt your car to a racing environment, keep the fault codes from appearing, optimize power gains, and improve general drivability.

Notice of Emissions Non-Compliance. This product is intended only for racing vehicles that may never be used, or registered or licensed for use, upon a public highway. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. It is not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations. Monaco Motorsports may confirm a customer's racing license, entry, or track participation and reserves the right to cancel part(s) that are not for legitimate racing or track purposes. Some suppliers have shipping exceptions to certain states or territories, requiring extra delivery time. We will advise you of any delays.

Warranty Information:

Please visit Shipping & Returns link below for warranty information:

Shipping & Returns

Warranty Information

Please visit Shipping & Returns link below for warranty information: Shipping & Returns

    Features
    Application
Reviews

Trending Products

Check out the most popular products from our Monaco Motorsports fam.