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Flowmaster Catback System - Dual Rear Exit - Force II - Mild Sound Chevrolet Corvette 1986-1990 5.7L V8

$697.00 Sale:$626.95


Model #17153

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This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

This Force II® system is specifically designed for 1986-1990 Chevrolet Corvette's with the 5.7L engine. The system starts at the factory ball flange at the rear of the car flowing into a Scavenger Series® Y-collector splitting the system into duals. The 2.50-inch mandrel-bent aluminized steel tubing flows into a pair of specially designed 60 Series™ Delta Flow® mufflers keeping the interior tone down to a minimum, with a deep mellow performance exterior tone. The system is finished off with dual 2.50-inch brushed stainless steel tips on each muffler and uses the factory hanger locations making installation a breeze. Force II systems deliver a moderate exterior tone and a mild interior tone, and are suited to customers looking for efficiency improvements without a lot of interior noise. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.


  • Includes Hangers and Hardware for an Easy Installation
  • Specially Designed 60 Series Performance Mufflers
  • Mandrel-bent 16 Gauge Aluminized Steel Tubing
  • Connects After Factory Catalytic Converter
  • Uses the Factory Hanger Locations
  • Mild Performance Exterior Sound
  • Minimal Interior Tone
  • 2WD/4WD: 2WD
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
  • California Proposition 65 Chemical Name: Nickel (Metallic)
  • California Proposition 65 Required: Yes
  • Emission Code: 5
  • Exhaust Series: Force II
  • Exit Position: Dual Rear Exit
  • Heat Shield: No
  • Inlet Diameter (in): 2.25
  • Material: Aluminized Steel
  • Muffler Part Number: 9424501-L, 9424501-R
  • Muffler Quantity: 2
  • Muffler Series: 50 Series Delta Flow
  • Outlet Diameter (in): 2.5
  • Product Type: Exhaust Systems / Kits
  • Single Dual: Dual
  • Sound Level: Mild Sound
  • System Type: Catback System
  • Tip Diameter (in): 2.5
  • Tip Quantity: 4
  • Tubing Diameter (in): 2.5
  • Warning: California Proposition 65
  • Fits 1986-1990 Chevrolet Corvette with 5.7L engine.

Proposition 65

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Vehicle Engine Notes
Chevrolet Corvette

  • Dual; Dual Rear Exit; Incl. 3.0 in./2.25 in. Rear Y-Pipe/50 Series(TM) Delta Flow Mufflers w/4 2.5 in. Stainless Tips;50 State Legal / California Emissions Compliant
Chevrolet Corvette
8 Cylinder 5.7 Liter
  • Dual; Dual Rear Exit; Incl. 3.0 in./2.25 in. Rear Y-Pipe/50 Series(TM) Delta Flow Mufflers w/4 2.5 in. Stainless Tips;50 State Legal / California Emissions Compliant

Who is Flowmaster?

Founded in 1983, Flowmaster is an aftermarket company specializing in manufacturing exhaust systems for various vehicles. This includes classic muscle cars, modern sedans, trucks, jeeps, off-road vehicles, and more. 

It has since revolutionized the industry and has continued its tradition to produce high-quality exhaust parts. Today, Flowmaster has been the go-to brand of many car builders and enthusiasts worldwide and has been the market leader for years.

Pushing the Boundaries of Exhaust Design

Flowmaster has been the pioneer when it comes to developing mufflers that are quiet enough to be used legally on the streets but, at the same time, does not restrict the performance of the engine. This is why more and more people are choosing Flowmaster for their car builds as they can enjoy their vehicles on and off the streets.

An Exhaust For Any Style

The company provides its customers with the ability to choose the type of muffler they want. They offer five sound categories of their exhaust system, from quiet and discrete to something more aggressive and gives that racy sound. They can also choose between 12 designs of chambered mufflers, including their exclusively-designed “laminar-flow” muffler or “straight-through.” 

Passionate Development Team

Flowmaster is composed of people who have years of experience in developing quality exhaust systems. Using the knowledge they acquired over the years, they were able to improve their designs and match it with the ever-growing technological advancement of vehicles today. 

Tried and Tested

With hundreds of installs under its belt, Flowmaster has proven itself to be a brand that delivers what it promised. All their exhaust systems are designed and dyno-tested, making sure that it can maximize your vehicle’s performance once installed.

Purchase Flowmaster at Vivid Racing

If you are in search of an upgrade in your vehicle’s exhaust that would provide you with that distinct sound and improved performance, then Flowmaster is the brand for you. 

They offer a variety of exhaust that would suit any preference. Visit Vivid Racing and check out the Flowmaster exhaust that would fit your needs.


This catalytic converter is warranted to be free from defects in materials andworkmanship subject to the exclusion and conditions set forth below and subject to the durational limits in this paragraph. This catalytic converter has been designed and manufactured and is warranted to meet federal Environmental Protection Agency emission requirements for 25,000 miles. The stainless steel body and the nipples alone are warranted for 5 years or 50,000 miles, whichever comesfirst. At the conclusion of the 5 year/50,000 mile or 25,000 mile period, whichever is applicable, all liability under this limited warranty shall terminate.

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Installation Instructions

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Warranty Information

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