Exhaust System Kit for Street Series Axle Back Performance Exhaust System MagnaFlow 15178
Exhaust System Kit for Street Series Axle Back Performance Exhaust System MagnaFlow 15178
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The MagnaFlow Street Series Axle-Back Performance Exhaust System 15178 brings enhanced engine sound and dyno-proven performance to your 3.6L, 3.8L 2007-2018 Jeep with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Jeep exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features an axle-back layout designed to replace your Jeep's exhaust system from near the rear axle on back. With its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, your ride will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15178 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1-year limited finish warranty and limited lifetime construction warranty.
- CNC precision robotic manufacturing techniques
- Durable corrosion-resistant stainless steel construction
- Dyno-proven performance
Key Specifications
- Series: Street
Why Buy This MagnaFlow Part?
Built for exhaust-system performance, durability, and dependable fitment, this part is well suited for replacement, repair, or custom fabrication projects.
Important Installation & Fitment Notes
- Universal and custom-fabrication parts may require cutting, welding, clamps, or additional hardware for final installation.
- Please confirm pipe diameter, body size, overall length, and inlet/outlet configuration before purchase.
- Professional installation is recommended for best fitment, alignment, and leak-free performance.

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.