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Flowmaster Signature Series Exhaust System Fits 2014-2019* (Classic Body) GM 1500 4.3L/5.3L, 304 Stainless Steel, Single Exit exhaust - 737857

$1,071.95
SKU:
737857
Weight:
42.60 LBS
Shipping:
Calculated at Checkout
Flowmaster Signature Series Exhaust System Fits 2014-2019* (Classic Body) GM 1500 4.3L/5.3L, 304 Stainless Steel, Single Exit exhaust - 737857

Description

The Flowmaster Signature Series Cat-Back Exhaust System is engineered for 2014–2019* GM 1500 Silverado and Sierra trucks with 4.3L or 5.3L engines (*Classic body 5.3L, 4WD with 143.5-inch wheelbase). Designed for drivers seeking a moderate performance tone with increased horsepower and torque, this premium exhaust system combines high-end appearance with proven performance.

Manufactured from brushed 304 stainless steel, the system offers excellent corrosion resistance and a polished, high-end look. TIG-welded construction ensures stronger, precise welds that are both durable and visually appealing. A 3.00-inch inlet pipe feeds into the Signature Series straight-through absorption muffler, delivering deep performance sound. The single 3.00-inch mandrel-bent tailpipe exits behind the rear passenger-side tire and is finished with a 4.50-inch PVD-coated black chrome 304 stainless steel tip, adding a custom, upscale appearance.

This system fits both 2WD and 4WD models with 143.5-inch and 153-inch wheelbases. It uses all factory hanger locations for a straightforward bolt-on installation. Installation hardware and instructions are included, allowing for easy at-home installation. Dyno-proven performance gains include up to 9 HP and 10 lb-ft of torque at the rear wheels.

Key Features

  • Moderate performance exhaust tone

  • Signature Series straight-through absorption muffler

  • Single 3.00-inch mandrel-bent tailpipe

  • 4.50-inch black chrome PVD-coated stainless steel tip

  • Brushed 304 stainless steel construction for corrosion resistance

  • TIG-welded for precise, durable welds

  • Increases horsepower and torque over stock exhaust

  • Fits 2WD and 4WD models with 143.5- and 153-inch wheelbases

  • Uses factory hanger locations for easy installation

  • Includes all necessary hardware and instructions

  • Dyno-proven performance gains

  • At-home installation friendly

Fitment

  • Year: 2014, 2015, 2016, 2017, 2018, 2019* (*Classic body only for 5.3L, 4WD, 143.5-inch wheelbase)

  • Make: GM

  • Model: 1500 Silverado / Sierra

  • Engine: 4.3L, 5.3L

  • Drivetrain: 2WD, 4WD

  • Wheelbase: 143.5-inch, 153-inch

  • Exhaust Type: Cat-Back

  • Exit Style: Single Side Exit

Specifications

  • Brand: Flowmaster

  • Exhaust Series: Signature Series

  • Muffler Series: Signature Series

  • Muffler Type: Absorption

  • Muffler Quantity: 1

  • Muffler Material: 304 Stainless Steel

  • Muffler Body Length: 18.00 in

  • Muffler Body Height: 4.00 in

  • Muffler Body Width: 9.00 in

  • Muffler Shape: Oval

  • Tail Pipe Quantity: 1

  • Tail Pipe Diameter: 3.00 in

  • Tail Pipe Tapered: Yes

  • Tip Diameter: 4.50 in

  • Tip Material: 304 Stainless Steel

  • Tip Finish: Black Chrome PVD Coated

  • Tip Cut: Angled

  • Tip Edge: Rolled

  • Inlet Diameter: 3.00 in

  • Main Piping Diameter: 3.00 in

  • Exit Style: Single Side Out

  • Mount Type: Uses Factory Hangers

  • Hangers Included: Yes

  • Clamps Included: Yes

  • Valve Included: No

  • Sound Level: Moderate

  • Pipe Material: 304 Stainless Steel

  • Pipe Wall Gauge: 16

  • Finish: Brushed Stainless Steel

  • CARB Compliant: Yes

  • California Proposition 65: Yes

  • Proposition 65 Chemical: Chromium (hexavalent compounds)