# MagnaFlow Muffler Mag SS 18X4X9 2/2 O/C

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11254 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 2/2in. 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 11254s weight-optimized 4x9x18in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11254 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.

-   Delivers a Smooth, Deep Tone
-   Delivers A Smooth-Deep Tone
-   Mufflers Are Bi-Directional
-   100 Percent Stainless Steel
-   100% Stainless Steel

## Details

- **Price:** 218.4 CAD
- **Vendor:** Magnaflow
- **Type:** Muffler

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 218.40 CAD | In stock |

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-muffler-mag-ss-18x4x9-2-2-o-c)
> Updated: 2026-09-01