Magnaflow · New

MagnaFlow Muffler Mag SS 4X9 14 2.5/2.5 O/O

Name: MagnaFlow Muffler Mag SS 4X9 14 2.5/2.5 O/O
Brand: Magnaflow
SKU: mag14377
Price: 164.00 USD

MPN 14377 · Store SKU mag14377

$164.00

CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/7/2026, 6:14:55 PM UTC. Adding a part does not reserve it.

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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

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 14377 brings our signature sound and dyno-proven performance to your ride with a free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill, and a weight-optimized, reversible 2.5/2.5in. diameter inlet/outlet Straight-Through layout. Muffler 14377s 4x9x14in. oval-shaped body features a premium, brushed finish for an elevated aesthetic that matches the enhanced exhaust note and performance that this muffler brings to your ride. The universal design allows for flexible placement of 14377 within your exhaust system to meet the specific spacing requirements of your vehicle, although professional installation is highly recommended. 14377 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty. Magnaflow Straight-Through Performance Muffler; 2.5in. Offset Same Side; 4x14x9 Body MagnaFlow 2.5 in/2.5 in Offset/Offset Same Side; 4 in x 14 in x 9 in Body Muffler Straight-Through Performance Muffler; 2.5in. Offset Same Side; 4x14x9 Body Straight-Through Performance Muffler; 2.5in. Offset Same Side; 4x14x9 Body 2.5 in/2.5 in Offset/Offset Same Side; 4 in x 14 in x 9 in Body Muffler

Manufacturer fitment & guides

Check 14377 against the manufacturer’s application information below.

MagnaFlow manufacturer exhaust application catalog ↗

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MagnaFlow Muffler Mag SS 4X9 14 2.5/2.5 O/O

Product details

Manufacturer fitment & guides

THE NEXT PART
OF YOUR BUILD.

Free shipping on $100+ orders.

Build with the right brands.

Find your next upgrade.

Make the whole setup work.

A few things to know.

Your cart.

Freight & oversized shipping quote

Delivery address