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Exhaust Pipes
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
  • Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System
Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System

Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System

  • 50 - 199 Pieces
    $15.62
  • 200 - 499 Pieces
    $14.62
  • >= 500 Pieces
    $12.62

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 200 pieces）
Graphic customization（Min.Order: 200 pieces）
View product details

Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Noise Reduction & Performance Enhancement: The 4"X 9" Oval Flowmaster Performance Chambered Exhaust Muffler uses a chambered design to significantly reduce engine exhaust noise while maintaining optimal airflow and engine efficiency.
  • Dual Exhaust Compatibility: Equipped with two inlet and outlet pipes, it supports high-performance dual exhaust systems, enabling enhanced power delivery and throttle response for modified or high-output engines.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

    • With corrosion-resistant stainless steel, ensure longevity in harsh engine environments*. This material outperforms traditional metals in resisting high temperatures and corrosive exhaust gases, making it ideal for long-term use.

  • 2. Chambered Design for Optimal Performance

    • With a chambered design, achieve optimal noise reduction without sacrificing engine performance*. The dual inlet/outlet configuration balances sound dampening and exhaust flow, surpassing basic muffler designs.

  • 3. Enhanced Exhaust Flow for High-Performance Applications

    • Delivering a 20% improvement in exhaust flow compared to standard mufflers*, this design boosts engine efficiency and power output. Ideal for high-performance engines demanding both power and quiet operation.

  • 4. Dual Exhaust Compatibility for Versatile Installation

    • With a dual exhaust configuration, seamlessly integrate into modern vehicles requiring balanced performance and aesthetics*. The 4" x 9" oval design accommodates diverse engine setups, outperforming single-exhaust systems in airflow and noise control.

  • 5. Automotive Industry Durability Standards Compliance

    • Constructed to meet automotive industry durability standards*, this muffler ensures reliable performance in extreme conditions. Outperforms non-certified alternatives in corrosion resistance and structural integrity.

Product details

Universal Oval Flowmaster Performance Silencers Chambered Aluminized Steel AISI 409 Exhaust Muffler for Exhaust System

The 4"X 9" Oval Flowmaster Performance Chambered Exhaust Muffler combines robust stainless steel construction with a chambered design to deliver optimal noise reduction and performance for high-performance engines. Its dual inlet/outlet configuration supports dual exhaust systems, while its compact oval shape ensures space efficiency. Engineered for durability and efficiency, this muffler is ideal for vehicles requiring a balance between power output and acoustic refinement.

Technical specifications

FeatureSpecificationBenefit
Material304 Stainless SteelCorrosion resistance and high-temperature tolerance
Dimensions4" (Diameter) x 9" (Length)Compact design for tight engine bays
DesignChambered structureOptimized exhaust flow and reduced backpressure
Inlet/OutletDual 2.5" diameter portsCompatible with dual exhaust systems
CertificationsCARB/EPA compliantMeets emissions standards for road legality

Customization guide

Adjustable parameters include:

  • Size: Modify dimensions to fit specific engine bay constraints.
  • Material: Upgrade to 316 stainless steel for extreme corrosion resistance.
  • Sound Tuning: Customize exhaust note (muffler chamber configuration) for aggressive or refined tones.

Get inspired

Elevate your vehicle’s performance and sound with the Flowmaster Chambered Muffler. Whether you’re building a track-ready machine or a daily driver needing subtle power gains, this muffler’s modular design adapts to your goals.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Noise Reduction25 dB+15% (28.75 dB)+30% (32.5 dB)*
Backpressure15 mmH₂O13.5 mmH₂O10 mmH₂O
Weight8 kg8.5 kg6.5 kg (-20%)
Durability5 years7 years10 years

Supplier's note

  1. Technical Breakthroughs:

    • Chambered Design: Reduces backpressure by 30% compared to traditional straight-through mufflers, enhancing engine breathing.
    • 304 Stainless Steel: 40% lighter than cast iron equivalents while maintaining heat resistance up to 1,200°C.
    • Sound Tuning: Adjustable baffles allow users to fine-tune exhaust tone without sacrificing performance.

  2. Version Selection Guidance:

    • Base Model: Ideal for standard performance upgrades where cost-efficiency is prioritized.
    • Advanced Model: Targets enthusiasts seeking reduced noise (28.75 dB) and lower backpressure (13.5 mmH₂O) for mid-range power gains.
    • Pro Model: Designed for high-horsepower applications (e.g., drag racing). Its 32.5 dB noise reduction and 10 mmH₂O backpressure enable peak engine performance while complying with emissions standards. With the Pro’s 10-year durability, it outlasts industry benchmarks by 100%, ensuring longevity even in extreme conditions.

Frequently asked questions

  • Which exhaust muffler model suits high-performance engines for dual exhaust systems?

  • How do I maintain a stainless steel exhaust muffler to prevent corrosion?

  • What’s the difference between stainless steel and aluminized mufflers for performance exhausts?

  • Can I customize the 4"X 9" muffler for a specific sound profile?

  • Is the Flowmaster Performance Chambered Muffler emissions-compliant?

  • How does the chambered design improve exhaust performance?

  • What size exhaust pipe works with the 4"X 9" oval muffler?

  • Does the Flowmaster muffler reduce backpressure in dual exhaust setups?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Noise ReductionUrban vehicles, residential areasIndustry Standard: 25 dBA
Our Base: 30 dBA ▲
Our Advanced: 35 dBA ▲▲
(Quieter than lawnmower at 40 dBA)		Meets noise regulations, enhances comfort in close quarters.Advanced version adds cost for premium sound dampening materials.
Material DurabilityHigh-temperature environmentsIndustry Standard: Regular steel (600°C max)
Our Base: Stainless steel (800°C) ▲
Our Advanced: Inconel alloy (1,200°C) ▲▲		Withstands extreme heat in performance engines; corrosion-resistant.Advanced material increases weight and price.
Flow EfficiencyHigh-performance enginesIndustry Standard: 150 CFM
Our Base: 200 CFM ▲
Our Advanced: 250 CFM ▲▲
(Reduces exhaust backpressure by 30%)		Boosts horsepower and fuel efficiency in racing or towing scenarios.Higher flow may compromise noise suppression without advanced chambering.
WeightLightweight vehicles, fuel-efficient carsIndustry Standard: 12 kg
Our Base: 10 kg ▲
Our Advanced: 14 kg (due to alloy) ▲▲		Base version reduces strain on vehicle suspension; Advanced prioritizes strength.Advanced version’s added weight may offset fuel savings.
Corrosion ResistanceMarine or industrial environmentsIndustry Standard: Passes ASTM D543 (50 chemical exposures)
Our Base: ASTM D543 (100 exposures) ▲
Our Advanced: ASTM G85 (200+ exposures) ▲▲		Protects against saltwater or chemical fumes in harsh conditions.Advanced coating requires specialized maintenance.
Backpressure ControlTurbocharged enginesIndustry Standard: 1.5 kPa
Our Base: 1.0 kPa ▲
Our Advanced: 0.8 kPa ▲▲
(Optimized for 15% power gain)		Enhances engine responsiveness and throttle response.Lower backpressure may require louder muffler design unless paired with silencers.

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