Finding the best flowmaster 400 suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Flowmaster 942043 40 Delta Flow Muffler - 2.00 Offset IN / 2.00 Offset OUT - Aggressive Sound
Feature
Durable fully welded 16 gauge alumInized steelReduced Interior resonance
Excellent street, strip and off road application
No Internal packIng to blowOut
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.2. Flowmaster 943043 40 Delta Flow Muffler - 3.00 Offset IN / 3.00 Offset OUT - Aggressive Sound
Feature
Durable fully welded 16 gauge alumInized steelReduced Interior resonance
Excellent street, strip and off road application
No Internal packIng to blowOut
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.3. Flowmaster 52558 Super 50 Muffler - 2.50 Offset IN / 2.50 Offset OUT - Moderate Sound
Feature
Mild to moderate exterior exhaust toneReduced Interior resonance
Excellent choice for large displacement vehicles
Improved horsepower or torque and potential mileage improvement
Race proven patented delta flow technology
Description
The Super 50 Series muffler is a larger version of Flowmaster's 50 Series Delta Flow muffler. OrigInally designed for trucks and SUV's, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces Interior resonance and provides a deep, rich tone along with mileage and power gaIns. Constructed of 16 gauge alumInized steel and fully MIG welded for maximum durability.4. Flowmaster 53058 Super 50 Muffler - 3.00 Offset IN / 3.00 Offset OUT - Moderate Sound
Feature
Mild to moderate exterior exhaust toneReduced Interior resonance
Excellent choice for large displacement vehicles
Improved horsepower or torque and potential mileage improvement
Race proven patented delta flow technology
Description
The Super 50 Series muffler is a larger version of Flowmaster's 50 Series Delta Flow muffler. OrigInally designed for trucks and SUV's, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces Interior resonance and provides a deep, rich tone along with mileage and power gaIns. Constructed of 16 gauge alumInized steel and fully MIG welded for maximum durability.5. Fluidmaster 400A Anti-Siphon Toilet Tank Fill Valve
Feature
#1 solution to fix noisy toilets, #1 best-selling toilet fill valve in the worldEasy-to-install, universal design fits most toilet models
Height adjusts easily between 9" - 14"
Replaces old ballcock and outdated valve designs
Anti-siphon design eliminates water supply contamination (code approved)
Description
The Fluidmaster 400A Universal Toilet Fill Valve is the #1 selling toilet fill valve in the world. A height adjustable toilet replacement part designed to fix leaking, noisy and slow filling toilet valves in an easy-to-install model. The anti-siphon design eliminates fresh water supply contamination, is code approved, and efficiently uses water. Fluidmaster recommends using this toilet repair product in pre-1994 toilets, with flush volumes between 3.5 7 gallons per flush for most effective use. A quick and easy replacement toilet fill valve that solves common toilet problems. The 400A is a trusted and durable toilet replacement part, consisting of corrosive-resistant materials combined with simple installation. Fluidmaster for replacement fill valves, and all your toilet parts needs. Combine with a Fluidmaster 2 Flapper for even better performance. Parts included with 400A purchase are Fill Valve, Shank Washer, Locknut, Refill Tube, Refill Clip and Instructions.6. Flowmaster 942443 40 Delta Flow Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound
Feature
Durable fully welded 16 gauge alumInized steelReduced Interior resonance
Excellent street, strip and off road application
No Internal packIng to blowOut
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.7. Flowmaster 15811 Prebent Tailpipe
Feature
1988-98 Chevy/GMC C1500/K1500 PickupsDescription
Flowmaster introduces their dual 2.50" "pre-bend" tailpipes for 1988-1998 GM C/K1500 pickup trucks. These are universal type parts that are constructed in aluminized steel and do not include any hangers, mounts, tips, etc. They are intended to be used with a single inlet, dual outlet muffler located on the right (passenger) side of the vehicle. The pipes exit out both sides of the vehicle behind the rear tires. These tailpipes are manufactured in the USA and are mandrel bent to maximize performance.8. Flowmaster 942543 40 Delta Flow Muffler - 2.50 Offset IN / 2.50 Offset OUT - Aggressive Sound
Feature
Durable fully welded 16 gauge alumInized steelReduced Interior resonance
Excellent street, strip and off road application
No Internal packIng to blowOut
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.9. Flowmaster 17119 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive
Feature
Mandrel bent 16 Gauge TubingModerate to Aggressive Sound Exterior Exhaust Tone
Includes hangers and hardware for easy installation
Made in the USA
Description
For the person who is looking for a complete header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. 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.10. Flowmaster 42443 40 Series Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound
Feature
Durable fully welded 16 gauge alumInized steelAggressive and powerful exterior exhaust tone
Notable Interior resonance
Excellent street, strip and off road application
No Internal packIng to blowOut
Description
FLOWMASTER, 40 SERIES PERFORMANCE MUFFLER, SOLD INDIVIDUALLY, ALUMINIZED STEEL -- Original Powerful Flowmaster Sound With Noticeable Interior Resonance, 2.25" Offset Inlet And 2.25" Offset Outlet Material: Aluminum Aluminized Steel Series: 40 Series11. Flowmaster 942453 50 Delta Flow Muffler - 2.25 Offset IN / 2.25 Offset OUT - Moderate Sound
Feature
Mild to moderate exterior exhaust toneReduced Interior resonance
Excellent choice for street rods cars and trucks
Improved horsepower or torque and potential mileage improvement
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.12. Flowmaster 15802 Prebend Tailpipes - 2.50 in. Rear Exit - Pair
Feature
Mandrel bent 16ga aluminized tubing2.50 inch prebent tailpipes
Exits at rear of vehicle
Keeps the exhaust system cleaner
Use Offset Inlet / Center Outlet Mufflers Only
Description
Pre bent Pipe Kits. Flowmaster's 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.13. Flowmaster 942553 50 Delta Flow Muffler - 2.50 Offset IN / 2.50 Offset OUT - Moderate Sound
Feature
Mild to moderate exterior exhaust toneReduced Interior resonance
Excellent choice for street rods cars and trucks
Improved horsepower or torque and potential mileage improvement
Race proven patented delta flow technology
Description
This two chamber design Incorporates Flowmaster's patented delta flow technology. The delta deflectors generate Increased scavengIng for better performance and reduced Interior sound. Milder exterior tone and reduced Interior resonance over standard 40 Series. Constructed of 16 gauge 409S staInless steel and fully MIG welded for maximum durability.14. Flowmaster 17107 Header-back System - 2.50 in. Dual Rear Exit - Pipes Only No Mufflers
Feature
2.5 inch tubing onlyNo mufflers in pipe kit, muffler must be purchased separately
Transmission cross-member back
Dual out rear exit
Requires offset/offset mufflers
Description
Flowmaster's 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.15. Flowmaster 15818 Tail Pipe Kit- 3in 68-72 GM A-Body
Feature
FLOWMASTER 15818 Tail Pipe Kit- 3in 68-72 GM A-BodyDescription
FLOWMASTER 15818 Tail Pipe Kit- 3in 68-72 GM A-Body16. Flowmaster 942053 50 Delta Flow Muffler - 2.00 Offset IN / 2.00 Offset OUT - Moderate Sound
Feature
Mild to moderate exterior exhaust toneReduced Interior resonance
Excellent choice for street rods cars and trucks
Improved horsepower or torque and potential mileage improvement
Race proven patented delta flow technology