aFe MACH Force-Xp 304 SS Cat-Back Exhaust - 2016-17 BMW 340i/340i xDrive F30

A cat-back exhaust replaces everything behind the catalytic converters. On the F30-generation 340i and 440i, aFe's MACH Force-Xp swaps the factory system for brushed 304 stainless tubing that steps from 3 inches down to 2-1/2 inches, with a high-flow transverse muffler. aFe rates it at up to 14 hp and 13 lb-ft of torque.

What you get

• Mandrel-bent 304 stainless tubing, TIG-welded by hand.
• High-flow transverse muffler in place of the factory rear section.
• Dual 4-inch polished stainless tips with laser-etched aFe logos.
• Factory hanger locations and a V-band flange for the connection.
• Factory-style exhaust valve built into the system.

Good to know

• The valve motor is not included. The system is designed to reuse the one from your car, so check that yours has it.

Brand: aFe · Part #: 49-36334-P

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.