MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2005-2009 Ford Mustang 4.0L Competition Series Cat-Back Performance Exhaust System 16605

MagnaFlow 2005-2009 Ford Mustang 4.0L Competition Series Cat-Back Performance - Main image
$623.72 $1006 In stock

Category: Performance Exhaust

The MagnaFlow Ford Mustang Competition Series Cat-Back Performance Exhaust System brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we're so well known for. This exhaust kit is designed to enhance your 4.0L Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips featuring a sporty finish. The exhaust system's cat-back layout replaces your ride's exhaust system from near the catalytic converter on back. Exhaust system 16605 is engineered to make your vehicle's engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 16605's direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Lucy ★★★★★

Installed this on my 2006 Mustang and the aggressive rumble at idle is exactly what I was hoping for. The deep resonant tone really wakes up the car without being obnoxious on the highway.

Aurora P. ★★★★★

Installed it this weekend and the fitment was spot-on under my '07 Mustang. The exhaust note is clean and aggressive without being obnoxious on the highway. I'm really happy with how it transformed the driving experience.

Lucy ★★★★★

The deep growl at idle is exactly what I was hoping for, and the 4.0L really wakes up once you get on the throttle. It's loud without being obnoxious in the cabin, which was my main worry with a cat-back like this.