Product description

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11386 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.

3 Reviews
5/5

MagnaFlow Muffler 14X4X9 2.5 D/D

15% OFF

Free shipping

$179.00

SKU: 11386

11 in stock

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UNIVERSAL

Part number
11386
Brand
Dimensions
21.4 × 9.7 × 4.7 in
Weight
11.8 lbs

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11386 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 2.5/2.5in. 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 11386s weight-optimized 4x9x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11386 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.

SPECIFICATIONS
Series
Straight-Through
Muffler Type
Straight-Through
Material
Stainless Steel
Body Finish
Satin
Body Length
14″
Body Shape
4″ x 9″ Oval
Body Width
9″
Configuration
Dual/Dual
Hanger Included
No
In/Out Diameter
2.5″/2.5″
Inlet Diameter
2.5″
Inlet Type
Dual
Outlet Diameter
2.5″
Outlet Quantity
2
Outlet Type
Dual
Overall Length
20″

Features

Title 1

Signature MagnaFlow Sound

The 4″ x 9″ Oval body of muffler 11386 is engineered to deliver the deep, resonating sound that MagnaFlow mufflers are famous for.

Title 2

Dyno-Proven Performance

Extensive dyno testing is used to ensure that this 4″ x 9″ Oval muffler increases engine power and performance by improving the flow dynamics and evacuation of exhaust gases.

Title 3

Optimal Architecture & Construction

The internal architecture of this muffler features a straight-through perforated core with two-stage acoustic packing which maintains the velocity of exhaust flow while generating a smooth, deep exhaust tone. Proudly made in the USA.

Title 4

Universal Fitment

11386’s universal design enables custom muffler placement and orientation to meet the particular spacing and mechanical requirements of your vehicle. Professional installation is highly recommended.

Testimonials

Exactly as described. At a fair price. I purchased 4 of these same tiers earlier, and this 1 as a spare. Fast shipping.
G. 3. in ebay
Shipped fast and was very well packaged. Price was unbeatable,
E. K. in ebay
Didn’t expect such a deep, clean tone from a smaller muffler, but this one surprised me. Sounds great on my daily driver without being too loud—just right.
F. T. in amazon
3Reviews
Write a review
D. T.

Clean Sound and Great Performance

This muffler gave my car a noticeable upgrade in both tone and flow. It’s got that classic MagnaFlow sound—deep and smooth—and I’ve noticed better throttle response too.

Cock

Perfect for a Sporty Upgrade

I added this to my project car and it brought it to life. Nice aggressive tone when accelerating, but still calm at cruising speeds. Love it!

M. Black

Great Fit and Finish

Install was super easy, and the quality is top-tier. It looks sleek under the car and gives that smooth MagnaFlow rumble I was hoping for.