MagnaFlow BMW SPEQ Series Cat-Back Exhaust System Black Chrome

MagnaFlow built the SPEQ Series 19828 for the B58 in the G20 M340i and G22/G23 M440i, including xDrive cars. It replaces everything behind the catalytic converters with a straight-through stainless system that flows more freely and gives the engine a deeper, more aggressive voice under throttle. MagnaFlow tuned it to stay free of drone at cruise, with pops and crackles on and off the throttle.

What you get

• Mandrel-bent 304 stainless tubing, 3 in through the system with a 3.5 in front pipe.
• Stamped Y-pipe that merges the exhaust pulses smoothly.
• Two 5x8 in straight-through mufflers plus an NDT resonator to shape the tone and keep cruising quiet.
• Quad 3.5 in black chrome tips with laser-etched MF logos, held by V-band clamps. The factory tips can be reused instead.
• Cast stainless valves that keep the factory exhaust valve working in every drive mode.
• Band clamps, logo brackets and all install hardware in the box.

Good to know

• Bolts in as a direct replacement for the factory parts behind the converters. MagnaFlow used 3D scanning and robotic CNC production for the fit.
• Covered by MagnaFlow's limited lifetime construction warranty.

Brand: Magnaflow · Part #: 19828

Ships from the brand or distributor, usually in 3-7 business days.

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.