The MagnaFlow 5″ X 8″ Oval Straight-Through 12259 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/3in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 12259’s weight-optimized 5x8x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12259 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.
Stainless Steel Muffler; 5 x 8 in. Oval Body; 3 in. Inlet/Outlet; Offset Inlet/Center Outlet; 3 in. Core; 18 in. Body Length; 24 in. Overall Length; Satin;
Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhaust project
MagnaFlow Muffler Mag SS 18X5X8 3 O/C
$167.30 Original price was: $167.30.$111.79Current price is: $111.79.
SKU: 12259
Category: Exhaust
Related products
Sale!
$972.00 Original price was: $972.00.$584.64Current price is: $584.64.
Cobb 22-23 Subaru WRX Stainless Steel 3in. Catback Exhaust
Sale!
$155.98 Original price was: $155.98.$114.96Current price is: $114.96.
Granatelli 2.5in Electronic Exhaust Cutout (Cutout Only)
Sale!
$900.06 Original price was: $900.06.$574.38Current price is: $574.38.
Magnaflow 2022+ Honda Civic Sport 1.5L Hatchback NEO Cat-Back Exhaust System
Sale!
$382.08 Original price was: $382.08.$267.00Current price is: $267.00.
Granatelli 3.0in Oval Stainless Steel Electronic Dual Exhaust Cutout
Sale!
$2,159.99 Original price was: $2,159.99.$1,429.96Current price is: $1,429.96.
Corsa 20-23 Chevrolet Corvette C8 RWD 3in Delete 4 Valve Cat-Back w/NPP w/4.5in CF Polished Tips
Sale!
$1,979.99 Original price was: $1,979.99.$1,117.12Current price is: $1,117.12.
Corsa 20-23 Chevrolet Corvette C8 RWD 3in Valved Cat-Back Delete w/ NPP w/4.5in CF Polished Tips
Sale!
$343.99 Original price was: $343.99.$187.54Current price is: $187.54.
Corsa 2011+ Dodge Durango 5.7L V8 Sport to Xtreme Non-Resonated 2.5in Head Pipe Conversion Kit
Sale!
$317.40 Original price was: $317.40.$198.95Current price is: $198.95.








