Rvng F & G series B46/B48 US MODEL Downpipe

Rvng RaceWorks

Rvng F & G series B46/B48 US MODEL Downpipe

$449.99 USD

Pickup available at Rvng HQ

Usually ready in 24 hours

In Stock - Ready To Ship

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Description

Rvng F & G Series B46 Competition 4” Downpipe

Introducing RVNG’s new Competition Series 4” Downpipes for your BMW B46 four-cylinder turbo engine! This high-performance upgrade is designed to fit all 2016-2024 models, including 230i, 330i, 430i, 530i, X3 30i, X4 30i, and Z4 30i/20i.

The B46 engine is standard in all U.S. spec cars. This downpipe is specifically tailored for U.S. spec models and differs from the B48 version found in EU and Asia spec vehicles.

Please confirm the year, make, model, and U.S. specification of your vehicle before purchase.

NOTE: THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHICLES IN THE STATE OF CALIFORNIA. It is available without restriction for international customers.

Ease of Installation: (1 Easy, 5 Hard) - Rating: 3

Key Features:

• Vehicle Compatibility: Compatible with the 2016+ 230i, 330i, 430i, 530i, X3 30i, X4 30i, and Z4 30i/20i models with the B46 engine.

• Performance Gains: Average horsepower gains of 14 to 16 whp (gains vary depending on vehicle modifications).

• Enhanced Torque: Average torque gains of 20 wtq on stock boost, up to over 24 wtq with software upgrades.

• Improved Throttle Response: Faster turbo spool-up and better throttle feel.

• Mandrel-Bent 4” Piping: Smooth transition into the exhaust for optimized flow.

• Premium Construction: Made from 100% stainless steel with TIG welding for high-quality, durable joints.

• Precision Engineering: Features a CNC-machined turbocharger V-band flange and an upgraded ball joint flange with a straight-flow interior.

• Stainless Steel Flex Section: Mimics factory design, allowing proper exhaust movement and flexibility.

• Custom Finishes: Available in mirror polish or brushed finish, with an option for high-temperature black thermal coating to reduce under-hood temperatures.

• Seamless Compatibility: Retains the factory “ball” type V-band connector for better flow and is compatible with both factory and aftermarket exhaust systems.

• Track-Tested Durability: Proven reliable under high-performance conditions.

• Complete Installation Kit: Includes all necessary hardware for an easy installation.

• Limited Lifetime Warranty: Built to last and backed by RVNG’s commitment to quality.

Optimize your BMW’s performance with RVNG’s Competition Series downpipe, designed for those who demand power, precision, and quality.

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Rvng F & G series B46/B48 US MODEL Downpipe

High Temp Cerakote

$449.99 USD

Fitment Guaranteed

Ships in 1-3 Days

Lifetime Warranty

30-Day Returns

Track Tested

Lifetime Warranty

FAQs

Answers to our most common questions below.

How Long Does Shipping Take?

All Rvng items ship within 1-3 days, if an item is out of stock the customer will be notified with the choice of a refund or an estimated timeline of delivery.

Do You Have Exhaust Parts For My Car?

We make a range of downpipes and exhaust systems for almost all BMW's. We choose to specialize in that market so we can always insure we are selling the best product possible for your Beamer!

Do You Offer In Person Pick-Up & Installs In Cali?

Yes, We are located in Garden Grove in Orange County, California. We invite any of our customers to pick-up in stock items and for any install or car related work.

Will Installing These Parts Void My Factory Warranty?

Aftermarket performance parts can affect your factory warranty on related components under the Magnuson-Moss Warranty Act — a dealer must prove the part caused the failure to deny a claim. We recommend speaking with your dealer or tuner. Our parts are precision-engineered to factory tolerances and we stand behind every product with our own Lifetime Warranty against defects and fitment issues.

Do These Parts Require a Tune?

Some parts — particularly downpipes, intake kits, and fuel system upgrades — will require or strongly benefit from an ECU tune to see full performance gains and to prevent check engine lights. Parts like heat exchangers, oil coolers, and hardware do not require a tune. We recommend reaching out to us or your local tuner before purchasing if you're unsure.

What Is Your Return Policy?

We accept returns within 30 days of delivery on unused, uninstalled, and undamaged items in original packaging. Custom or made-to-order parts are non-returnable. To start a return, contact us at rvngperformance@yahoo.com with your order number. Return shipping is the customer's responsibility unless the item arrived damaged or incorrect.

Are Your Catless Downpipes Street Legal?

Catless downpipes are intended for off-road and track use only. They are not emissions compliant and will trigger a check engine light without an appropriate tune or O2 spacers. If you need a street-legal option, contact us — we can discuss catted alternatives depending on your platform.

How Do I Know This Will Fit My Car?

Every RVNG product is developed and validated on the specific platforms listed. If your exact build year, model, or configuration isn't listed, contact us before ordering — we'll confirm fitment. We stand behind every part with our Fitment Guarantee: if it doesn't fit as described, we'll make it right.