Magnaflow · New
MagnaFlow 12-15 911 H6 3.4 3.8 OEM Manifold Direct Fit Converter
MPN 52390 · Store SKU mag52390
Supplier stock checked 11/7/2026, 2:13:46 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 52390. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2012-2016 Porsche 911 3.8L & 2012-2016 Porsche 911 3.4L. MagnaFlow 52390 includes (1) Flange Gasket, (3) Flat Washers, (3) Bolts, (3) Nuts and interchanges with OE parts 991 113 412 04. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems. Magnaflow OEM Grade Manifold Catalytic Converter OEM Grade Manifold Catalytic Converter
Manufacturer fitment & guides
Check 52390 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.