Product Summary

Cat-Back Exhaust System Type, Dual Single or Dual

  • Specifically designed for the 1986-04 Ford Mustang
  • Features a durable stainless steel construction
  • Built with race inspired outlaw muffler technology
  • Each set is dyno tuned for maximum performance
  • It is made right here in the USA!

Key Specs

MFG. Part #817682
Exhaust System TypeCat-Back
Single or DualDual
Exhaust Tubing Diameter2-1/2 Inch

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Flowmaster 817682 Details

Flowmaster's race-oriented Outlaw Extreme Cat-back system is designed for the enthusiast looking for the maximum sound level and performance from their 1986 to 2004 V8 Mustang. The turn-down tailpipes drop at the rear of the transmission and eliminates full length tailpipes to maximize the sound level and allow for extra clearance for wide tires and modified suspensions. This mandrel bent system is designed to mount behind the factory catalytic converters, or most OEM style aftermarket H-pipes. This Outlaw Extreme system delivers a super aggressive interior and exterior tone and is suited to the enthusiast who wants the most aggressive components they can purchase. Like all Flowmaster systems, the benefits include improved throttle response and power. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

  • Stainless Steel Construction
  • Dyno Tuned for Maximum Performance
  • Race Inspired Outlaw Muffler Technology
  • Made in the USA


1986-1995 Ford Mustang 302 CID/5.0L V8
1996-2004 Ford Mustang 4.6L V8


Flowmaster 817682 Specifications

MFG. Part #817682
Exhaust System TypeCat-Back
Single or DualDual
Exhaust Tubing Diameter2-1/2 Inch
Exhaust ExitDual Underbody Out-Dumps
Sound LevelAggressive
Muffler(s) IncludedYes
Muffler Quantity2
Muffler ConnectionsSingle Inlet | Single Outlet
Muffler TypeWelded Baffle
Exhaust Tip IncludedYes
Exhaust Tip Quantity2
Exhaust Tip ShapeRound
Exhaust Tip CutSquare
Exhaust Tip Edge StyleNon-Rolled Edge | Single-Wall
Exhaust Tip Size2.50"
Exhaust Tip Length6"
Exhaust System Material409S Stainless Steel
Exhaust System FinishNatural
Exhaust Pipe ColorNatural
Muffler SeriesOutlaw
Muffler Inlet Diameter2.5"
Muffler Outlet Diameter2.5"
Muffler Material409 Stainless Steel
Muffler ColorBlack
Exhaust Tip Material409 Stainless Steel
Exhaust Tip FinishNatural
Mount TypeUses Factory Hangers
Tailpipe Diameter2.5"
Catalytic Converter(s) IncludedNo
Hardware IncludedYes
Heat ShieldNo
Sold in QuantityKit
GTIN Code700042032365
Exit LocationUnderbody Out-Dump