Flowmaster Cat-Back Exhaust System Dual Dump Outlaw Extreme 2-1/2" Stainless Steel V8 1986-2004



MSRP $624.00
You save 19%

Flowmaster 2-1/2" Stainless Steel Outlaw Extreme Dual Dump Cat-Back Exhaust System for all 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004 Mustangs with a V8 Engine.

If your 1986-2004 V8 Mustang spends most of its life on the track rather than on the streets, this 2-1/2" Stainless Steel Outlaw Extreme Dual Dump Cat-Back Exhaust System from Flowmaster is the perfect exhaust upgrade! CJ Pony Parts offers this exhaust for the race oriented enthusiast that wants maximum performance with an aggressive sound for their Mustang.

Flowmaster Cat-Back Exhaust 817682 Features and Benefits:
- Made in the USA
- Mandrel Bent 2-1/2" 409S Stainless Steel Construction
- Dyno Tuned for Increased Power and Throttle Response
- Race Inspired Outlaw Muffler Technology
- Super-Aggressive Interior and Exterior Tone
- Dump Style Tips Exit at the Rear of Transmission
- Includes All Necessary Mounting Hardware for Easy Installation

This Outlaw Extreme cat-back exhaust system is designed with dual turn-down tips, or dumps, that exit just behind the transmission under your Mustang. This dual dump style exhaust is ideal for modified Mustangs that require additional clearance for larger rear tires and aftermarket suspension setups. A dual dump style exhaust will also eliminate the full-length tailpipes and provide your Mustang with an extremely loud, race-car inspired tone.

Flowmaster's Outlaw Extreme exhaust will mount behind the factory catalytic converters or aftermarket OEM style H-pipes, and is designed for an easy installation. All necessary mounting hardware and clamps are included.

Please Note: This dual dump style cat-back exhaust system is strongly recommended for off-road or racing use only.

When you're looking for an exhaust for your Mustang, every owner needs to check out Flowmaster's exhaust systems and mufflers. Flowmaster is a manufacturer of just about any part you need for your Mustang's exhaust, from full exhaust systems and exhaust kits, to mufflers and accessories.

Order the 817682 Flowmaster 2-1/2" Stainless Steel Outlaw Extreme Dual Dump Cat-Back Exhaust System for your 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 or 2004 Mustang with a V8 Engine from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Installation Videos

Video Transcript

Without a doubt, we do more exhaust installs here at CJ's than any other video, and the reason is obvious. Exhaust is definitely the most popular modification people make to their cars. Whether you have a classic Mustang or a modern Mustang, there's tons of different exhaust systems out there to get the one that suits the style you're looking for and more importantly, the sound you're looking for. Now, the owner of this 1992 Mustang behind me, he wanted the least restriction possible and he wanted it loud. So today, we're gonna install this Flowmaster Outlaw Cat Back on this 1992 Mustang GT.

This is the 2-1/2" Flowmaster Stainless Steel Outlaw Cat Back. Now, this is a Cat Back because it bolts to your cats, but it is not a full-length exhaust. This is gonna be a dump. Now, the benefit of dumps, it's gonna give you a much deeper, louder tone. Also gives you some clearance in the back of the car. This will fit you 1986 through 2004 V8 Mustang, so we're working the 5-liter or the 4.6-liter as well. It's made in the USA. Features Mandrel bent, 2-1/2", 409S stainless steel piping, and then the race-inspired Outlaw muffler. Again, this will be a direct replacement for the factory system, and I only suggest this if you're looking for something that's quite loud. For this installation, you need a lift or a jack and jack stands, two 3/8" ratchets, 9/16" deep socket, 9/16" standard socket, 15mm socket, and an exhaust hanger removal tool.

Now, the first step in the process for the installation is to get the car up in the air and remove the factory exhaust system. If you have a Fox body like us, chances are the factory exhaust is gonna be long-gone and you'll have a bolt-on exhaust like this car has on it currently. If you do actually still have an original style exhaust system, what you wanna do is actually cut the pipe with a Sawzall right here, separate the tail pipe from the muffler, and then remove it from the car. We're gonna start up here by separating the Cat Back from our X-pipe. Our car has an aftermarket X-pipe but factory or aftermarket, as long as your exhaust goes to the factory location, the Outlaw's gonna work for you. When you separate this, you're gonna wanna keep this hardware because you wanna use this with our Flowmaster installation.

When you take the tailpipe out, you actually remove the entire hanger since it won't be used with the new system. All right, now we're ready to install our Flowmaster. You're gonna notice that your factory mid-pipe is gonna be offset. The passenger's side is gonna be the longer exhaust. You're gonna grab it and start by putting it up in the rear hanger. We're gonna put it up to place and install the hardware. One of the nice things about using dumps is that alignment isn't really that big of a deal because there's no tailpipes to deal with. But what you wanna do, make sure it's lined up tight here, there's no clearance anywhere else, and you can tighten the bolts down.

The exhaust and the hanger, you're gonna grab the small retainer that's included, slide it over the outside edge. That'll keep it from coming out, and now we can install the tip. So we'll clamp over the muffler. You can go straight down, kind of off the angle, basically wanna put it away from everything as much as possible and then tighten it down. Okay, then repeat the process on the other side. And your installation's finished.

Now, I'm sure a lot of you probably fast-forwarded to this part. Let's hear how it sounds. At idle, it's not terrible. Dumps definitely have a nice, deep tone at idle. Now, let's rev it up. Yeah, that's that loud race car sound you get from a dump. The Outlaw, if you're looking for a loud, in-your-face kinda sound, this is a good choice. Like I mentioned before, the Outlaw system is not for everybody. It does have a nice, loud sound to it but honestly, it's a lot more livable than you would think on the highway. You get a little bit of drone, which is normal for dumps. But overall, if you want loud and aggressive for your Fox body or SN95, this is gonna be an excellent choice. Installation, very, very easy. Once the factory system's off, it's gonna take you no more than 30 minutes, be back on the road in no time.

Vehicle Fitment

This product will fit the following Mustang years:

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