aFe MACH Force-XP Cat-Back Exhaust – BMW 340i/440i (F30/F32) B58

OVERVIEW

The aFe MACH Force-XP Cat-Back Exhaust wakes up the B58-powered F30 340i and F32 440i with a free-flowing, aggressive note and real gains — without giving up daily drivability. Constructed from mandrel-bent 304 stainless steel that steps from 3″ down to 2-1/2″, it flows far better than the restrictive factory system while retaining the factory-style exhaust valve for a civil cruise and a loud, open wail on demand. A direct bolt-on using factory mounting locations.

SPECS

• Max gains of +14 HP and +13 lb-ft of torque (aFe in-house dyno)
• 100% TIG-welded, mandrel-bent 3″ to 2-1/2″ 304 stainless steel construction
• Free-flowing transverse muffler with high-temp black powder-coated finish and stamped aFe logo
• Retains a factory-style exhaust valve (uses the factory valve motor — not included)
• Dual 4″ 304 stainless steel tips — black or polished per selection
• Bolt-on install using factory mounting locations, no cutting
• Does not require a CARB EO#

PARTS INCLUDED

• MACH Force-XP cat-back exhaust (mid-section, muffler, and dual tips)
• Band clamps and mounting hardware

TECH RESOURCES

• Installation Instructions (PDF)
• Retains the factory exhaust valve — reuses the factory valve motor (not included)
• Pairs with our aFe Control Sway Bars (340i/440i)

PART NUMBER

• Black Tips — 49-36334-B
• Polished Tips — 49-36334-P

VEHICLE APPLICATIONS