Flowmaster 14-18 Silverado/Sierra 1500 5.3L FlowFX Cat-Back Exhaust System

Our new Flowmaster® Flow FX® cat-back exhaust system is manufactured using durable 409 stainless steel throughout and features a 3.00-inch inlet pipe leading to a single inlet/dual outlet Flow FX "straight-through" muffler for great sound and maximum performance. The dual 2.50-inch mandrel-bent tailpipes exit out the side at an angle behind the rear wheels directing exhaust away from your boat or travel trailer when towing. The system is finished off with a pair of large 4.50-inch diameter black ceramic coated 304S stainless steel tips, giving your truck a custom look that goes hand in hand with that deep performance Flow FX sound. The system uses all the existing factory hanger locations and includes an additional hanger to install the new left side tailpipe. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Notes: Fits 2/4wd models with 143.5 and 153-inch wheelbases and *2019 Classic body models. Fits 2014-2019* (*Classic body) GM Silverado/Sierra 1500 Crew Cab and Double Cab models with 5.3L engines. - Aggressive to moderate sound Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft. Also fits 2019* Classic body models.

• Large 4.5-inch Black Ceramic Coated Stainless Steel Tips
• Flow FX "straight-through" Performance Muffler
• Deep Powerful Tone Outside the Vehicle
• Uses the Factory Hanger Locations
• Full Stainless Steel Construction
• Clears the Factory Spare Tire
• Lifetime Limited Warranty
• Easy at Home Installation
• All Mandrel-bent Tubing

Upgrade your truck’s exhaust performance and sound with the Flowmaster Flow FX cat-back exhaust system, part number 717869. Designed for 2014-2019 Classic body Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models equipped with the 5.3L engine, this system fits 2WD and 4WD applications with 143.5- or 153-inch wheelbases. It delivers an aggressive to moderate exterior tone while maintaining a practical, truck-friendly design. The system does not fit Crew Cab 2WD models equipped with a two-piece driveshaft.
Constructed from durable 409 stainless steel, the system uses a 3-inch inlet pipe connected to a single-inlet, dual-outlet Flow FX straight-through performance muffler. Dual 2.5-inch mandrel-bent tailpipes exit at an angle behind the rear wheels to direct exhaust away from a boat or travel trailer while towing. The design also clears the factory spare tire and uses the existing factory hanger locations, with an additional hanger included for the new left-side tailpipe.
A pair of large 4.5-inch black ceramic-coated 304S stainless steel tips completes the system with a clean custom appearance and added corrosion resistance. Flowmaster includes installation instructions and all necessary hardware for a convenient at-home installation. Built for dependable performance and lasting durability, this exhaust system is backed by a limited lifetime warranty. This product may require acknowledgment of California emissions restrictions before purchase or installation.

Features:

• Application: Fits 2014-2019 Classic body Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 5.3L engines

• Fitment: Designed for 2WD and 4WD models with 143.5- or 153-inch wheelbases

• Sound: Produces an aggressive to moderate exterior exhaust tone with a deep performance character

• Construction: Full 409 stainless steel construction for durability and corrosion resistance

• Muffler: Flow FX single-inlet, dual-outlet straight-through performance muffler

• Tubing: Mandrel-bent tubing promotes smooth exhaust flow and consistent fitment

• Tailpipes: Dual 2.5-inch tailpipes exit behind the rear wheels at an angled orientation

• Exhaust Tips: Includes dual 4.5-inch black ceramic-coated 304S stainless steel tips

• Installation: Uses factory hanger locations and includes an additional hanger for the left-side tailpipe

• Clearance: Designed to clear the factory spare tire

• Included: Installation instructions and required mounting hardware

• Warranty: Limited lifetime warranty

Fitment:
Chevrolet Silverado 1500 Custom 2016
Chevrolet Silverado 1500 Custom 2017
Chevrolet Silverado 1500 Custom 2018
Chevrolet Silverado 1500 High Country 2014
Chevrolet Silverado 1500 High Country 2015
Chevrolet Silverado 1500 High Country 2016
Chevrolet Silverado 1500 High Country 2017
Chevrolet Silverado 1500 High Country 2018
Chevrolet Silverado 1500 LS 2015
Chevrolet Silverado 1500 LS 2016
Chevrolet Silverado 1500 LS 2017
Chevrolet Silverado 1500 LS 2018
Chevrolet Silverado 1500 LT 2014
Chevrolet Silverado 1500 LT 2015
Chevrolet Silverado 1500 LT 2016
Chevrolet Silverado 1500 LT 2017
Chevrolet Silverado 1500 LT 2018
Chevrolet Silverado 1500 LTZ 2014
Chevrolet Silverado 1500 LTZ 2015
Chevrolet Silverado 1500 LTZ 2016
Chevrolet Silverado 1500 LTZ 2017
Chevrolet Silverado 1500 LTZ 2018
Chevrolet Silverado 1500 SSV 2015
Chevrolet Silverado 1500 SSV 2016
Chevrolet Silverado 1500 SSV 2017
Chevrolet Silverado 1500 SSV 2018
Chevrolet Silverado 1500 WT 2014
Chevrolet Silverado 1500 WT 2015
Chevrolet Silverado 1500 WT 2016
Chevrolet Silverado 1500 WT 2017
Chevrolet Silverado 1500 WT 2018
Chevrolet Silverado 1500 LD Custom 2019
Chevrolet Silverado 1500 LD LT 2019
Chevrolet Silverado 1500 LD WT 2019
GMC Sierra 1500 Base 2014
GMC Sierra 1500 Base 2015
GMC Sierra 1500 Base 2016
GMC Sierra 1500 Base 2017
GMC Sierra 1500 Base 2018
GMC Sierra 1500 Denali 2014
GMC Sierra 1500 Denali 2015
GMC Sierra 1500 Denali 2016
GMC Sierra 1500 Denali 2017
GMC Sierra 1500 Denali 2018
GMC Sierra 1500 SLE 2014
GMC Sierra 1500 SLE 2015
GMC Sierra 1500 SLE 2016
GMC Sierra 1500 SLE 2017
GMC Sierra 1500 SLE 2018
GMC Sierra 1500 SLT 2014
GMC Sierra 1500 SLT 2015
GMC Sierra 1500 SLT 2016
GMC Sierra 1500 SLT 2017
GMC Sierra 1500 SLT 2018
GMC Sierra 1500 Limited Base 2019
GMC Sierra 1500 Limited SLE 2019