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MagnaFlow

4.5 (123)

MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust Muffler 11229

Name: MagnaFlow MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust Muffler 11229 - MagnaFlow 4 in. x 9 in. x 14 in. Oval Straight-Through Performance Exhaust Muffler 11229
Brand: MagnaFlow
SKU: 18434142339187
Price: 146.0 USD
Availability: InStock
Rating: 3.7368 (12 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$146.00

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Color

Black

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Description

The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11229 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 ...

Reviews

3.7

19 ratings

Sounds awesome. Very noticeable performance increase when pairing with a cold air intake and tune.

Daniel · May 19, 2026

Really makes a difference

Install was super easy. Pipes fit like a glove. The sound is amazing. The finish is nice but can't really see it because it's up under body. My JK has a 5. 7L Hemi. I can tell it has gained some power. The launch band used to be gear 3. That's when you really feel the pull. With this new performance muffler it takes off from 1st gear. I love it.

Raymond · February 19, 2026