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Magnaflow 51306 Universal Catalytic Converter - 2.50in Inlet/Outlet OEM Grade

Manufacturer

Magnaflow

<h3>About MagnaFlow Performance Exhaust</h3><p>Since 1981, MagnaFlow has built a reputation as one of the most trusted names in automotive exhaust and emissions systems. Based in Oceanside, California, this American manufacturer combines precision engineering with premium materials to deliver exhaust components that enhance both performance and sound. What sets MagnaFlow apart is their commitment to manufacturing excellence—many of their products are built domestically using advanced fabrication techniques and stainless steel construction that resists corrosion and delivers long-lasting durability.</p><p>MagnaFlow's expertise spans the complete exhaust pathway, from emissions control to the tailpipe exit. Their <a href="/421-magnaflow-catalytic-converter-5808">catalytic converters</a> are engineered to meet stringent emissions standards while maintaining optimal flow characteristics, making them a popular choice for both OEM replacement and performance upgrades. These converters feature advanced substrate technology and precise catalyst formulations that balance environmental compliance with power delivery.</p><h3>Performance Exhaust Solutions</h3><p>For enthusiasts seeking a complete transformation, MagnaFlow's <a href="/421-magnaflow-exhaust-system-kit-10727">exhaust system kits</a> offer comprehensive solutions that replace factory restrictive components with mandrel-bent tubing and performance-oriented designs. These systems are engineered to reduce backpressure, improve exhaust scavenging, and produce the distinctive tone that performance enthusiasts crave—whether that's a deep rumble for muscle cars or an aggressive note for modern sport compacts.</p><p>Sound management is another area where MagnaFlow excels. Their <a href="/421-magnaflow-exhaust-muffler-5872">exhaust mufflers</a> utilize straight-through perforated core designs that balance noise reduction with minimal flow restriction. Unlike traditional chambered mufflers, MagnaFlow's approach preserves exhaust velocity while creating a refined, sporty exhaust note. The brand also offers specialized solutions like <a href="/421-magnaflow-exhaust-manifold-with-integrated-catalytic-converter-14724">exhaust manifolds with integrated catalytic converters</a>, which optimize packaging and thermal efficiency by combining two critical components into a single assembly.</p><h3>Engineering and Quality Standards</h3><p>MagnaFlow's recognition as a SEMA Manufacturer of the Year reflects the industry's acknowledgment of their innovation and quality standards. Every component undergoes rigorous testing to ensure proper fitment, durability, and performance gains. From <a href="/421-magnaflow-exhaust-tail-pipe-10023">exhaust tail pipes</a> with polished tips that add visual appeal to complete cat-back systems, MagnaFlow delivers solutions for trucks, SUVs, muscle cars, and imports. Their stainless steel construction resists the heat cycling and road salt exposure that degrades lesser exhaust components, making these systems a smart long-term investment for any vehicle owner seeking performance, sound, and durability.</p>

Part Number

51306
08/13/2036 9:42 PM
Sale Price

$202.00

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Usually delivered within 2 days

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Product Details

The MagnaFlow 51306 OEM Grade Federal/EPA Compliant Universal Catalytic Converter helps keep the check engine light off while restoring emissions system performance. This universal converter features 2.5-inch inlet and outlet connections, an 11-inch body length, and 15-inch overall length with a round body design, making it adaptable for a wide range of exhaust system configurations.

Key Features:

  • Built to OEM Grade standards, matching the performance and quality of your vehicle's original catalytic converter
  • Highly corrosion resistant stainless steel construction for long-lasting durability
  • Designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles
  • Ribbed body that minimizes expansion and distortion when the converter heats up
  • Monolithic honeycomb catalyst designed for maximum flow and surface area
  • Rear O2 sensor port for proper oxygen sensor placement
  • OEM grade product contains a higher precious metal loading than standard grade versions

Installation Notes:

Universal design provides the right fit for a wide array of vehicles, though cutting and welding is required. Professional installation is highly recommended and may require custom fabrication, cutting and/or welding along with specific automotive knowledge.

Important Compliance Information:

Federal Catalytic Converters are not legal for sale, installation or use in the states of California, Colorado or New York. This converter is EPA certified for 48-state applications with engines up to 6.2L and test weight up to 6,375 lbs.

Products specifications

Heat Shield Included

Yes

Inlet Attachment

Weld-on

Outlet Attachment

Weld-on

Heat Shield Material

Aluminized Steel

Inlet Diameter

2.5

Outlet Diameter

2.5

Subtitle

Federal / EPA Compliant

Oxygen Sensor Location

Post Converter

Inlet Orientation

Straight

Outlet Orientation

Straight

Substrate Material

Ceramic

Body Material

Stainless Steel

Material

Stainless Steel

Series

OEM Grade

Finish

Stainless Steel

Outlet Quantity

1

Body Type

Clam Shell

Heat Shield Attached

Yes

Overall Length

15

Inlet Quantity

1

Sensor Port Count

1

Air Tube Adaptable

No

Type

Universal

Body Length

11

Body Shape

Round

Body Width

4.25

Body Height

4.375

EASY TO ORDER

Arrived faster than I had expected. Well packaged, item protected well, even though the box took some abuse . No complaints!

I will buy all my exhaust needs here.

Easy to use great prices!

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I needed two fairly expensive parts for a project. Naturally, I shopped everywhere before deciding on where to purchase them. Autoplicity had the best price on the carburetor. I continued shopping around for the alternator, and ended up right back at the Autoplicity website, because they beat everyone else on that price also! And I don't mean by a few dollars! HUGE savings! Thanks Autoplicity! In the words of Arnold, "I'll be back!"

Fast shipping and saved $60 on a $399 item. However you have to verify your part #'s with the vendor. The part discription on autoplicity sometimes is not what you get. I ordered an item that said it was an O2 plug and bung but when it showed up it was just the bung plug sold separate and customer service basically said it was my bad for not checking for a more accurate discription on the Allstar web site.

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