The Flowmaster Outlaw is one of the most aggressive sounding cat-back exhausts available. Here is exactly what it is, what changes in your car after installing it, and whether the $1,089 price is justified.
A cat-back exhaust replaces everything from the catalytic converter backwards — the mid-pipe, muffler, and exhaust tips. The catalytic converter stays in place because it is a legal emissions component. Everything behind it is replaced with freer-flowing, better-sounding parts.
The Flowmaster 817689 Outlaw is built from T-304 stainless steel — one of the highest quality materials used in exhaust manufacturing. It is designed to produce an aggressive, loud exhaust note while improving exhaust flow.
Factory exhaust systems are engineered to be as quiet as possible. Manufacturers use heavily baffled mufflers and narrow pipes to suppress sound and reduce cost. The result is a car that sounds dull and flat — and an exhaust system that restricts your engine's potential.
The Outlaw removes these restrictions completely. It is named Outlaw for a reason — this is one of the loudest, most aggressive systems Flowmaster makes.
Important: The Outlaw is genuinely loud. It is not a subtle upgrade. If you want a mild improvement, look at Flowmaster's quieter options. If you want maximum aggression, the Outlaw delivers exactly that.
Sound level — search YouTube for "Flowmaster 817689 sound clip" to hear it on your specific car before purchasing. Sound preference is personal — make sure it matches what you want.
Material — T-304 stainless steel is the standard for quality performance exhausts. It resists rust and lasts the life of the car.
Fitment — always verify compatibility with your specific car year, make, model and engine before ordering. Check the compatibility list on the Amazon product page.