Breathe Performance
Select a vehicle to find exact fit parts
Shop by Brand
AEM 
aFe Power 
Airaid 
AWE Tuning 
Banks 
BBK 
Corsa 
Diablosport 
Dinan 
Edge 
FASS Fuel Systems 
Holley 
Injen 
JLT 
Magnum FORCE 
Mishimoto 
S&B 
Sinister 
Sniper Motorsports 
Superchips 
Takeda 
Volant 
XDR Latest Products
-
17-20 Honda Civic Si (Coupe/Sedan - 1.5 - FWD) Exhaust System Kit
$1,305.59
-
AIRAID Performance Air Intake System- 200-126-1
$349.99
-
24-26 Ford Ranger Raptor Exhaust System Kit
$2,659.15
-
Chevrolet, Pontiac (302, 326, 327, 350, 396, 400) Exhaust System Kit
$715.43
-
Mishimoto Silicone Radiator Hose Kit for 2015-2021 Subaru WRX (Red)
$129.95
Image
Product
Price
-
- Includes a pair of Super 44 Series mufflers tuned for that iconic deep, aggressive 5.0L Fox body sound
- Bolt-on installation using factory hanger locations, with all hardware and easy-to-follow instructions included
- Free-flowing 2.50-inch aluminized steel mandrel-bent inlet pipes and tailpipes for smoother exhaust flow
- Long 2.50-inch 304 stainless steel dual tips deliver a genuine show-car look
- Emissions-legal and CARB (California) compliant to keep your Mustang street-legal
- Fits 1987-1993 Mustang LX and 1986 Mustang GT with 5.0L, coupes and convertibles
-
- Delivers the most aggressive, deepest-sounding tone in Flowmaster’s four-inch case street muffler lineup
- Delta Flow® technology carried over from the larger Super 40 mufflers for strong performance
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- Universal fitment with a 2.25-inch inlet for flexible custom and replacement builds
- High-temperature paint finish helps the compact four-inch case stand up to heat
- Purpose-built for street/strip vehicles that demand serious exhaust attitude
-
- Delivers Flowmaster’s most aggressive, deepest sounding four-inch case street muffler tone
- Proven Delta Flow® technology shared with the larger Super 40 series for strong performance
- 16 gauge aluminized steel body, fully MIG welded for maximum durability
- High-temperature paint finish helps resist heat and wear
- Universal fitment with a 2.25-inch inlet and 9.50-inch body width, ideal for classic muscle cars
-
- Delivers Flowmaster’s most aggressive, deepest four-inch case street muffler sound using proven Delta Flow® technology
- Fully MIG welded 16 gauge aluminized steel construction for maximum durability
- High-temperature paint finish stands up to the heat of everyday street driving
- Universal fitment with a 2.25-inch inlet, ideal for late model muscle car builds
- Compact 9.50-inch body width packs big, rich tone into a durable package
-
- Delta Flow® technology delivers the deepest, most aggressive tone in Flowmaster’s four-inch case street muffler lineup
- 16-gauge aluminized steel, fully MIG welded for maximum durability
- High-temperature paint finish helps the compact four-inch case stand up to the heat
- Universal fitment with a 2.25-inch inlet for flexible custom exhaust builds
- Rich, aggressive sound purpose-built for classic muscle cars
-
- Delivers Flowmaster’s most aggressive, deepest four-inch case tone using proven Delta Flow® technology
- Built from 16-gauge aluminized steel and fully MIG welded for maximum durability
- Compact 9.50″ body with a 2.50″ inlet fits a wide range of Street/Strip builds
- Universal fitment gives you flexibility for custom exhaust setups
- High-temperature paint finish stands up to real-world exhaust heat
-
- Delta Flow® technology delivers Flowmaster’s most aggressive, deepest four-inch case street muffler sound
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish stands up to the heat of street and strip driving
- Universal fitment with a compact 9.50-inch body and 2.50-inch inlet for flexible installation
- Purpose-built for Street/Strip vehicles that demand a powerful, rich exhaust tone
-
- Delta Flow® technology delivers Flowmaster’s most aggressive, deepest four-inch case street muffler tone
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish stands up to heat and the elements
- Universal fitment with a 2.50-inch inlet and 9.50-inch body width for flexible installs
- Tuned for street/strip vehicles that demand a rich, powerful exhaust note
-
- Dual Super 44 Series mufflers deliver Flowmaster’s iconic deep, aggressive rumble
- 2.50-inch mandrel-bent stainless steel tubing for smooth, high-flow performance
- Polished 4.00-inch stainless tips embossed with the Flowmaster logo for a finished look
- Uses factory hangers and includes all parts and hardware for easy installation
- CARB (California) compliant and backed by a Lifetime Limited Warranty
- Fits 2005-2010 Mustang GT, GT500 and California Special coupes and convertibles (4.6L/5.4L)
-
- True dual crossmember-back design with a built-in H-pipe crossover for a fuller, balanced sound
- Dual Super 44 Series mufflers deliver a moderate to aggressive interior and exterior tone
- Built from 16-gauge mandrel-bent aluminized steel with 2.50-inch tailpipes for durable, smooth flow
- Delivers improved throttle response, power, and mileage like all Flowmaster systems
- Includes 3.00-inch polished stainless steel tips plus all hangers and hardware for installation
- CARB compliant and backed by Flowmaster’s 3-Year Limited Warranty
-
- True dual crossmember-back system with a built-in H-pipe crossover for balanced flow and tone
- 16-gauge mandrel-bent stainless steel tubing for durability and unrestricted exhaust flow
- Super 44 Series mufflers (P/N 842546) deliver a moderate to aggressive interior and exterior tone
- Improves throttle response, power, and mileage — hallmark Flowmaster performance benefits
- Includes all hangers and hardware for an easy, straightforward installation
- CARB (California) compliant with a 2.50″ inlet and dual tail pipes
-
- Delivers Flowmaster’s most aggressive, deepest sounding four-inch case street muffler tone
- Delta Flow® technology carried over from the larger Super 40 series for proven performance
- 16-gauge aluminized steel construction, fully MIG welded for maximum durability
- Universal fitment with a compact 4-inch case and 3.00-inch inlet for flexible custom builds
- High-temperature paint finish helps it stand up to real-world exhaust heat
- Ideal for classic muscle car owners who want bold, unmistakable sound
-
- Delta Flow® technology delivers a powerful, rich, aggressive exhaust tone
- Flowmaster’s deepest sounding, highest performing four-inch case street muffler
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- High-temperature paint finish for lasting protection against heat
- Universal fit with a 9.50″ body width—ideal for classic muscle car builds
-
- Delta Flow® technology delivers Flowmaster’s most aggressive, deepest four-inch case street muffler sound
- 16 gauge aluminized steel, fully MIG welded for maximum durability
- Universal fitment with offset (same side) outlet for flexible custom installs
- High-temperature paint finish resists heat and the elements
- Compact four-inch case with a 9.50-inch body width fits a wide range of builds
- Purpose-built for Street/Strip vehicles that demand an aggressive tone
-
- True dual crossmember-back system with a built-in H-pipe crossover and Super 44 Series mufflers for an aggressive-to-moderate tone
- Built from durable 16-gauge, 2.50-inch mandrel-bent stainless steel tubing for smooth, efficient flow
- Delivers improved throttle response, power, and mileage
- Includes all hangers and hardware needed for installation, with tailpipes that exit in the factory location
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
-
- Delta Flow® technology delivers Flowmaster’s most aggressive, deepest four-inch case street tone
- 16-gauge aluminized steel, fully MIG welded for maximum durability
- Compact 9.50-inch body width fits tight chassis while keeping big sound
- 3.00-inch inlet designed to flow with serious performance exhaust setups
- High-temperature paint finish protects the case under demanding conditions
- Perfect match for classic muscle car and aggressive street builds
-
- Aggressive exterior tone with a moderate, livable interior sound thanks to Super 44 Series dual mufflers
- Durable 409 stainless steel construction with 3.00-inch mandrel-bent tubing for smooth flow
- Large 4.00-inch polished stainless steel tips add a refined, upgraded look
- Bolt-on axle-back design uses factory hanger locations and includes all necessary hardware
- CARB compliant and emissions-legal for street use on 13-14 Mustang GT 5.0L coupes and convertibles
- Backed by the Flowmaster Lifetime Limited Warranty
-
- Delta Flow® technology delivers Flowmaster’s most aggressive, highest-performing street tone in a four inch case
- 16 gauge 409S stainless steel, fully MIG welded for maximum durability
- High-temperature paint finish stands up to real exhaust system heat
- Universal fit with a 2.25″ inlet and 9.50″ body — ideal for late model muscle car builds
- Perfect centerpiece for a custom catback exhaust or cat back muffler system
-
- Delta Flow® technology delivers the aggressive, powerful tone muscle-car owners want in a compact four-inch case
- 16-gauge 409S stainless steel, fully MIG welded for maximum durability
- Universal fitment with a 2.25 inlet diameter for flexible exhaust system builds
- High-temperature paint finish stands up to heat cycling and the elements
- Ideal centerpiece for a late-model muscle car cat back exhaust system upgrade
-
- Complete crossmember-back system with built-in H-pipe crossover and a pair of Super 44 Series mufflers for that signature Flowmaster growl
- Choose from four dual tailpipe exit styles to match your truck’s look and stance
- Mandrel-bent 2.50-inch aluminized steel tubing delivers smooth flow and durable construction
- Direct fit for 1967-1972 Chevy/GMC C10 and C15 1/2 ton 2WD coil spring trucks, short or long wheelbase
- CARB compliant and includes all necessary installation hardware
- Provides adequate clearance for substantially lowered vehicles, backed by a 3-Year Limited Warranty
-
- True dual, crossmember-back exhaust system with a built-in H-pipe for improved throttle response, power, and a deep muscle car sound
- 2.50-inch mandrel-bent aluminized steel tubing throughout for strong, consistent flow
- Includes a pair of Flowmaster Super 44 Series mufflers (PN 942546) delivering a moderate to aggressive tone inside and out
- Dual 2.50-inch tailpipes exit in the factory location behind the rear wheels for a clean, correct look
- CARB (California) compliant and ships complete with all parts, hardware, and instructions for an easy fit
- Stainless steel construction available via optional system #817129 for those who want an upgraded material
-
- Delivers the deep, aggressive, iconic 5.0L sound thanks to a pair of Super 44 Series mufflers
- Free-flowing 2.50-inch mandrel-bent stainless steel inlet pipes and dual tailpipes for smooth exhaust flow
- Uses factory hanger locations plus included hardware and instructions for quick, easy installation
- Emissions legal and CARB (California) compliant bolt-on upgrade
- Long 2.50-inch 304 stainless steel tips add a show-car finish
- Fits 1986-1993 Mustang LX (coupes and convertibles) and 1986 GT with the 5.0L engine, backed by a Lifetime Limited Warranty
-
- Complete true dual, Crossmember-back exhaust system that includes the Super 44 mufflers, hangers and hardware for a straightforward install
- 2.50-inch mandrel-bent aluminized steel tubing plus a built-in H-pipe delivers maximum flow and a balanced, aggressive tone
- Super 44 Series mufflers produce an aggressive to moderate interior and exterior sound for enthusiasts who want to be heard
- Dual 2.50-inch tailpipes finished with 2.50-inch angle-cut brushed stainless steel tips for a clean, muscular look
- Engineered to improve throttle response, power and mileage, and backed by a 3-year Limited Warranty
- CARB (California) compliant and purpose-built for 1969 Camaro and Firebird V8 applications
-
- Delta Flow® technology delivers a rich, powerful, and aggressive tone in a compact four-inch case
- Built from 16-gauge 409S stainless steel and fully MIG welded for maximum durability
- Flowmaster’s highest-performing, most aggressive street muffler in its four-inch class
- Universal fit with a 3.00-inch inlet, ideal for late-model muscle car exhaust builds
- High-temperature paint finish adds protection against heat and the elements
- Flexible setup — pair with your choice of hangers and exhaust tips (sold separately)
Showing 1–24 of 56 results
