MagnaFlow Exhaust Products P/N 19828

Cat-Back Exhaust Systems

Description

The MagnaFlow SPEQ Series #19828 cat-back exhaust is engineered for BMW G20, G22, and G23 M340i/M440i and xDrive models equipped with the 3.0L B58 inline-6. Designed to improve exhaust flow, amplify performance sound, and enhance visual appeal, it aggressively elevates the character of modern BMW performance. Constructed from mandrel bent 3” 304 stainless steel tubing with a 3.5” front pipe, it offers excellent durability and corrosion resistance. A stamped Y-pipe smoothly merges exhaust pulses for improved efficiency, while the straight-through design is dyno proven to support power gains for both stock and high output applications. Sound is managed through dual 5x8” straight-through mufflers and an NDT resonator, producing a deep, aggressive performance tone under acceleration while eliminating drone at cruising speeds. The result is a strong, assertive exhaust note that stays controlled in daily driving and opens up with pops and cracks when you get on or off the throttle. The system features interchangeable tip options secured with racing bred V-band clamps for a leak free, heat stable connection. Choose quad 3.5” black chrome tips with laser etched MagnaFlow “MF” logos or reuse factory tips. OEM valve functionality is retained by MagnaFlow’s cast stainless valves, allowing full integration with all driving modes. Designed as a direct replacement for factory components behind the catalytic converters, the system includes band clamps, laser cut logo brackets, and all necessary installation hardware for a secure, precise fit, achieved through 3D scanning and CNC robotic manufacturing ensuring a true direct-fit installation. Backed by MagnaFlow’s limited lifetime construction warranty, this cat-back delivers a measurable upgrade in sound quality, flow efficiency, and overall power. Designed with a focus on real world performance, it enhances the B58 with a power focused exhaust tone and the premium construction demanded by modern high output performance.

MagnaFlow SPEQ Series Black Chrome Cat-Back System

Specifications

BrandMagnaFlow Exhaust Products
Part Number19828
Clamping TypeV Band
Clamps IncludedYes
Exhaust Tip ConnectionWelded-On
Exhaust Tip CutAngle Cut
Exhaust Tip Diameter3.5
Exhaust Tip EdgeFolded
Exhaust Tip FinishBlack Chrome
Exhaust Tip Length5.5
Exhaust Tip MaterialStainless Steel
Exhaust Tip Quantity4
Exhaust Tip ShapeRound
Exhaust Tip WallDouble Wall
Exit StyleQuad split rear
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter3
Muffler (Center) Body Height4
Muffler (Center) Body Length11
Muffler (Center) Body Width4
Muffler (Center) TypeTuned Chamber
Muffler (Rear Right) TypeStraight-Through
Muffler (Right) Body Height5
Muffler (Right) Body Length8
Muffler (Right) Body Width5
Muffler FinishBrushed
Muffler Quantity3
Pipe Material304 Stainless Steel
SeriesSPEQ
TypeCat-Back
Valve TypeActuated
Weight60 lbs

Vehicle Fitment

Year(s)MakeModelSubmodel
2020-2024BMWM340iBASE
2020-2024BMWM340i xDriveBASE
2021-2024BMWM440iBASE
2021-2024BMWM440i xDriveBASE
MagnaFlow Exhaust Products P/N 19828

Cat-Back Exhaust Systems

$2,939.00

Check if this fits your vehicle Select your vehicle
Professional installation available
Install times vary — call your local store for an installation quote!
Built to orderShips direct from the manufacturer to your local H&H store. Call 888-865-4024 for lead times.
Cat-Back
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableAsk your store for a quote
4.8
5,563 reviews
Customer Reviews

Rated 4.8 across 22 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Pensacola · 7 hours ago

Easy people to deal with and friendly. Will do business again with them.

Marietta · 21 hours ago

The staff is friendly and helpful. They went out of their way to make sure I got a warranty part replaced. Their communication is professional and they completed the work in a timely manner and it looks wonderful! Thanks!

Pelham · 21 hours ago

Bought step rails for a truck. Took less than an hour to have them installed! Great work!

Gainesville · 21 hours ago

Great service. Super quick install.

Trussville · 2 days ago

Love the new look

B K
Conyers · 3 days ago

Eric was a pleasure to work with on my LEER top! Capable service guys installed my top and it looks great. Thank you!

Cumming · 5 days ago

My experience was great Brandon was exceptionally helpful and professional and the crew did a great job installing my tonneau cover Thanks

Decatur · 7 days ago

Tyler and his team have done a couple different jobs for me this year on two different trucks. The quality of work was outstanding.

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.