SKU: 39714056121

Flowmaster 717873 FlowFX Cat-Back Exhaust System

Sale price$285.75 Regular price$317.50
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Flowmaster 717873 FlowFX Cat-Back Exhaust SystemThis Flowmaster FlowFX cat back exhaust system is designed for 1999 2007* (*Classic Body) GM Silverado Sierra 1500 trucks with 4. 3L, 4. 8L & 5. 3L engines and features 409 stainless steel construction for added durability and 16 gauge mandrel bent tubing for free unrestricted flow. The compact, oval "straight through" FlowFX performance muffler attaches behind the catalytic converter and delivers a moderate, deep and powerful sound with minimal

This Flowmaster FlowFX cat-back exhaust system is designed for 1999-2007* (*Classic Body) GM Silverado/Sierra 1500 trucks with 4.3L, 4.8L & 5.3L engines and features 409 stainless steel construction for added durability and 16-gauge mandrel-bent tubing for free unrestricted flow. The compact, oval "straight-through" FlowFX performance muffler attaches behind the catalytic converter and delivers a moderate, deep and powerful sound with minimal interior resonance. The mandrel-bent stainless tailpipe tucks up high in the undercarriage protecting it from being crushed when traversing rocky terrain. This system uses the factory hanger locations and is finished off with a 4.50-inch black ceramic-coated 304 stainless steel tip embossed with the Flowmaster name. The kit includes detailed instructions and all hardware necessary for a quick and easy installation you can do at home. Covered by our Lifetime Limited Warranty.

Features & Benefits

  • Increases Of 67 HP And 65 FT/LBS Over The Stock Exhaust
  • System Produces A Nice Rumble With Minimal Internal Resonance
  • Large 450-Inch Black Ceramic Coated Stainless Steel Tip Offers An Aggressive Look
  • FlowFX "Straight-Through" Performance Muffler Delivers A Deep Tone And Improved Exhaust Flow
  • Mandrel-Bent 16-Gauge 409 Stainless Steel Tubing Maximizes Exhaust Flow With Excellent Corrosion Resistance
  • Limited Lifetime Warranty

Attributes

  • Sound Level: Aggressive/ Moderate
  • Type: Cat-Back
  • Exhaust Type: Single
  • Outlet Type: Single
  • Exit Position: Rear Exit
  • Material: Stainless Steel
  • Diameter (IN): 3 Inch
  • Includes Muffler: Yes
  • Includes Exhaust Tip: Yes
  • Exhaust Tip Style: 4-1/2 Inch Round Angle-Cut
  • Exhaust Tip Material: Stainless Steel
  • Muffler Quantity: 1
  • Includes Exhaust Pipe Muffler Delete: No
  • Muffler Configuration: Single Inlet, Single Outlet
  • Includes Hardware: Yes
  • Required Welding: No
  • Estimated Install Time (Hours): 2
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39714056121

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4.1 ★★★★★
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M
Verified Purchase
Mike M.
San Leandro, US
★★★★★ 4
Very good shipped and received fast
Missing one bottom gasket. Maybe factor made changes from old style
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2021
D
Verified Purchase
DW
Charlottesville, US
★★★★★ 5
Good impeller kit
Great kit for impeller alpha one gen two outdrive. The only thing that was missing is the instructions as a reference.
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Reviewed in the United States on August 14, 2025
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Outboard impeller replacement kit.
This kit was for a 1999 Mercury Force 75 hp outboard motor. I purchased used and had not been run for a year. Impeller was hard and not flexible enough to pump water. The kit fixed that problem and the job took about 2 hours to complete. (I took my time). If you don't have a shop manual look for YouTube videos. I watched several and found one that matched the motor I was working on. Made things much simpler.
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Reviewed in the United States on April 28, 2022
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
Excellent product
The water pump kit fits perfectly well on my 1997 Alpha 1 Gen+ Stern drive. Quality looks good and at reasonable price. I run the motorboat for 20 minutes and the water recirculation was constant
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Reviewed in the United States on December 12, 2024
D
Verified Purchase
D.Hutch
Los Angeles, US
★★★★★ 5
back on the water
perfect fit
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Reviewed in the United States on June 23, 2025

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