Flowmaster Force II Cat-back Exhaust System – Flowmaster (817539)

For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster® Cat-back exhaust system provides, our Force II® systems are the perfect choice. This system includes tailpipes for both dual out the rear and dual out the side (recommended for towing applications) so you can choose the one that fits your lifestyle. Force II systems deliver a moderate exterior tone and moderate to mild interior tone, and are suited to customers looking for efficiency improvements without a lot of noise. This system includes a specially designed stainless steel PRO™ series oval case muffler, all mandrel-bent stainless steel tubing and uses the factory hanger locations for an easy hassle free installation you can do at home. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, this system includes all necessary parts and hardware for easy installation.
2011-2014 Ford F-150 with 3.5L Ecoboost, fits all wheelbases. – Moderate to mild sound
11-14 F150 V6 ECO FII DOR/S 409S
SYS 11-14 F1
Fits 2011-2014 Ford F-150 with 3.5L Ecoboost, fits all wheelbases.
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Specifications

Vehicle Fitment