BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series F32 (2014+)

Clear BMW chassis

Please ensure your correct model is selected

Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

Sub-Categories

Sort By:

B46/B48 Race-Inspired Cat-Back Exhaust - F30/F31/F32/F33/F36 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:26238517
Part#: 048013LA06TKT
Ships on Jul 15, 2026
Sale - Save 25% $ 952.99

This product was last offered at the strikethrough price on
01-03-2026

$ 715.55 USD
Sale - Save 25%
$ 952.99

This product was last offered at the strikethrough price on
01-03-2026

$ 715.55 USD

If you're seeking enhanced performance for your B46/B48 equipped F Chassis, explore our expertly crafted straight-pipe exhaust kit. By integrating our Turner Mid-Pipe Upgrade with the ECS Muffler Delete, you'll unlock the true potential and exhilarating, race-inspired sound of your exceptional 4-cylinder turbo engine!

Shedding an average of 27 lbs, this kit replaces your cumbersome and restrictive factory exhaust with lightweight, high-flow T304 stainless steel 3.0" exhaust piping. It's a seamless, direct bolt-on replacement for your entire factory exhaust, allowing you to swiftly elevate the performance of your daily driver or weekend warrior!

The B46/B48 engines represent a formidable new generation of 4 cylinders, boasting enhanced capabilities and a significantly improved exhaust note compared to their predecessors. Unlock the full driving potential of your underappreciated 330 or 430 with this brilliant curated kit designed specifically for you.

Features and benefits:

Complete sound and performance transformation
Simple, direct bolt-on installation (with instructions!)
27lb weight savings! (Muffler delete - 21 lbs, midpipe upgrade - 6 lbs!)
Tip adjustment capability ​
Slide farther on for left and right adjustment
Rotate for verticle adjustment
Good looking and durable 304 stainless steel construction
Heavy-duty fabricated sheet metal exhaust hangers
Dual staggered tip exhaust tips (integrated)
Installation and Support:

Installation is as easy as unbolting your factory exhaust and installing your full lightweight replacement
Tools you might want for the job:
Exhaust hanger removal pliers - T379176

Show More Show Less
VRSF Downpipe Upgrade - Performance High Flow Cat - Includes Hardware...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date after 08/13
Packaged by Turner - Corporate Logo
T#:2393346
Part#: 10302011HARDKT
In Stock
$ 595.99

This product was last offered at the strikethrough price on
12-23-2025

$ 580.99 USD
Free Shipping
$ 580.99 USD
Free Shipping
Reduce back-pressure by replacing the restrictive catalytic converter in the factory downpipe with a Performance high flow race cat. The high flow 200 cell race cat results in a faster spool, an increase in power, as well as a more aggressive exhaust tone. VRSF offers high quality products at an exceptional value. This Catless downpipe is handcrafted from SS304 grade stainless steel with smooth radius bends to decrease turbulence and flow. Made from hand crafted, tig welded 304 grade stainless steel. Smooth radius bends to decrease turbulence and increase flow. 200 cell high flow cat as well as catless options available. CNC SS304 stainless steel flanges. Gains from 20-25hp with tune. VRSF Lifetime Warranty
Show More Show Less
BMW N26 Sports Series 4" High Flow Catted Downpipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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 7 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 High Flow Catted Downpipe - B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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.

Show More Show Less

Evolution Raceworks Sports Series 4" High Flow Catted Downpipe -...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Evolution Racewerks - Corporate Logo
T#:29267518
Part#: BM-EXH019CAT
Ships in 9 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

Show More Show Less
Catalytic Converter Installation Kit - B58 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:27238750
Part#: 18328612537KT2
Ships in 2 Business Days
$ 103.99

This product was last offered at the strikethrough price on
03-10-2026

$ 99.99 USD
Free Shipping on orders $49 and up
$ 99.99 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.