BMW Downpipes for BMW 4 Series F32 (2014+)

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When BMW began to offer more and more forced induction vehicles, some enthusiasts were upset and others were excited about the big power potential. While we love older, naturally aspirated BMWs, we LOVE forced induction BMWs. Upgrading your downpipe (or downpipes) is one of the easiest ways to reduce restriction and add more power to your BMW. We offer several brands, including our own designs, of downpipes for your BMW!
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BMW N26 Sports Series 4" High Flow Catted Downpipe
For vehicles with the N26 SULEV engine only - will NOT work with the N20 Engines!
Evolution Racewerks - Corporate Logo
T#:597064
Part#: BM-EXH010CAT
Ships in 8 Business Days
$ 895.00 USD
Free Shipping
$ 895.00 USD
Free Shipping
High Flow 200 Cell Metallic Catted Downpipes from Evolution Racewerks for your N26 BMW engine
Evolution Racewerks - Corporate Logo
T#:558983
Part#: BMEXH018C
Ships in 8 Business Days
Starting at $ 945.00 USD
Free Shipping
Starting at $ 945.00 USD
Free Shipping

Want to install a downpipe on your B58 equipped BMW, but still need to pass emissions? Evolution Racewerks has the answer for you with their B58 Catted downpipe. The Evolution Racewerks Competition Series Catless Downpipes is constructed from 304 stainless steel, featuring mandrel bent piping.  These are 100% TIG welded by in house fabricators and built in the USA! 

The factory turbocharger turbine housing utilizes a V-Band flange which has been 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 remains positioned at the factory location. Also, since Evolution Racewerks uses a larger 4.5" pipe right after the turbocharger, turbo backpressure is significantly reduced, resulting in less exhaust turbulence and backpressure which again improves throttle response and decreasing turbo lag.

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Evolution Racewerks - Corporate Logo
T#:29267518
Part#: BM-EXH019CAT
Ships in 8 Business Days
$ 895.00 USD
Free Shipping on orders $49 and up

Crafted to enhance the exhaust flow of your B46-equipped BMW, this downpipe is equipped with a 200-cell high-flow catalytic converter and mandrel bent 4" piping. With a sleek brushed steel finish, this downpipe is constructed entirely from 100% stainless steel and TIG-welded for ultimate durability, surpassing the factory catalyst.

Key Features:

1. Elevated initial torque curve 2. Enhanced throttle response and quicker turbocharger spooling 3. Precisely CNC machined turbocharger V-band flange 4. Maintains the factory "ball-type" v-band connector 5. Compatible with both factory and aftermarket exhaust systems 6. Tested for durability on the track 7. Proudly made in the USA

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Racing Dynamics - Corporate Logo
T#:20386743
Part#: 1301055560
Ships in 5 Business Days
$ 890.00 USD
Free Shipping on orders $49 and up
$ 890.00 USD
Free Shipping on orders $49 and up
Catted downpipe with heat shield for BMW M135i/M235i/335i/435i/M2 F87 model with the 3.0 liter turbocharged N55 straight 6 motor from 2015-2018. Eliminates the largest restriction in your exhaust with a 200 cell sport cat. Large input flange with 4" mandrel bent downpipe manufactured out of 304 stainless steel, TIG welded with brushed finish. For left & right hand drive models! Features: Large 4 1/2" inlet flange, 4" tubing and straight-through design allows for maximum power and sound. Heat Shield to funnel the heat out the exhaust and lower temperature in engine compartment. Heat shield is used to protect surrounding parts, wires, and hoses against radiant heat from the downpipes, Integrated thermal insulation reduces surface temperature up to 70% Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound Improves horsepower and torque significantly. Approximately 20 HP with a tune. Downpipe includes a 200 cell sport catalytic converter for a cleaner environment Direct bolt-on replacement for OEM primary catalytic converters Less thermal load on the turbocharger Reduces turbo lag Applications: BMW M135i N55 F20 2014-18 BMW M235i N55 F22 2014-18 BMW 335i N55 F30/F31/F34 2014-18 BMW 435i N55 F32 2014-18 BMW M2 N55 F87 2014-21
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Catalytic Converter Installation Kit - B58 3.0L
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:27238750
Part#: 18328612537KT2
In Stock
Sale - Save 6% $ 102.99

This product was last offered at the strikethrough price on
07-09-2026

$ 96.69 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 102.99

This product was last offered at the strikethrough price on
07-09-2026

$ 96.69 USD
Free Shipping on orders $49 and up
Prevent engine issues and error codes caused by exhaust leaks with the correct installation of components using appropriate gaskets and hardware.