1. Mufflers & Resonators Deals
  2. sku: 9014588199338682
  3. STREET MAX SM11239

STREET MAX SM11239 Body Muffler Offset 810041861658

fits model: X9.

Sm11239 Street Max - 4 Inch X9 Oval Body Muffler 3 Offset In / Out

( Brand: Street Max ), ( Part Type: Muffler ), ( Color: Polished ), ( Material: 409-grade 16-gauge Stainless Steel ), ( Manufacturer Part Number: SM11239 ), ( UPC: 810041861658 )

Review STREET MAX Inch Oval Body Muffler Offset In Out fits X9

Introducing the Street Performance SM11239 X9 Body Muffler Offset, a high-performance exhaust component designed to deliver power gains and an enhanced exhaust note for your vehicle. This muffler is specifically engineered for select make and model applications and is a direct replacement for the original equipment muffler.

The X9 Body Muffler Offset from Street Performance is constructed using premium materials for durability and longevity. This muffler features a 3-inch inlet and a 2.5-inch outlet, making it a great choice for those looking to upgrade their exhaust system for improved performance. The offset design of this muffler provides clearance for various exhaust components and ensures a proper fit.

This Street Performance muffler is designed to reduce back pressure within the exhaust system, allowing for improved engine breathing and increased power output. The muffler's internal design utilizes a series of tubes and honeycomb-style catalytic converters to maximize exhaust flow while minimizing exhaust noise. The result is a powerful exhaust note that is sure to please enthusiasts and performance-minded drivers.

The X9 Body Muffler Offset from Street Performance is manufactured to meet or exceed original equipment quality and is backed by a limited lifetime warranty. This muffler is easy to install, requiring only basic hand tools and minimal exhaust system modification. The muffler comes complete with all necessary hardware and detailed installation instructions to make the process as smooth as possible.

Upgrading your exhaust system with the Street Performance SM11239 X9 Body Muffler Offset is a great way to unleash the full potential of your vehicle's engine. This high-performance muffler delivers power gains, improved exhaust flow, and an enhanced exhaust note, making it a must-have for any serious performance enthusiast.

Buying a performance muffler like the SM11239 X9 for your vehicle can offer several benefits and drawbacks. Here's a detailed analysis of both.

Benefits:

1. Enhanced Engine Performance: A high-performance muffler can help your engine breathe better, allowing it to produce more power and torque. This can result in improved acceleration and overall driving experience.

2. Increased Exhaust Flow: Performance mufflers employ larger diameter pipes and more open designs to increase exhaust flow, which can help reduce back pressure and improve engine efficiency.

3. Improved Sound: A high-performance muffler often produces a more aggressive exhaust note, which can be a desirable feature for many car enthusiasts.

4. Durability: Aftermarket performance mufflers are typically made from superior materials, ensuring they last longer than stock mufflers.

Drawbacks:

1. Cost: Performance mufflers are generally more expensive than stock mufflers due to their construction materials and design.

2. Loudness: The increased exhaust flow and open design of performance mufflers can lead to increased noise levels, which may not be desirable for all drivers, especially in residential areas.

3. Fitment Issues: Performance mufflers may require modifications to fit properly on your vehicle, such as custom exhaust tips or adapters. This can add to the overall cost and complexity of the installation process.

4. Emissions: Performance mufflers may not meet emissions standards, which could lead to potential fines or issues when undergoing vehicle inspections.

Conclusion:

A performance muffler like the SM11239 X9 can offer significant improvements in engine performance, exhaust flow, and sound. However, it also comes with potential drawbacks such as cost, loudness, fitment issues, and emissions concerns.

Recommendation:

If you are a car enthusiast looking for increased power, improved exhaust flow, and a more aggressive exhaust note, then a performance muffler like the SM11239 X9 may be a worthwhile investment. However, it is crucial to carefully consider the potential drawbacks before making a purchase and to ensure that any modifications made to your vehicle meet local laws and regulations. Additionally, investing in a high-quality aftermarket muffler from a reputable manufacturer can help mitigate potential issues with durability and fitment.

part # sm11239 prices

  • $64.99-$103.99

specifications mufflermooch:

  • for models: X9
  • brand: Street Max
  • part type: Muffler
  • color: Polished
  • material: 409-grade 16-gauge Stainless Steel
  • manufacturer part number: SM11239
  • upc: 810041861658

seller mufflermooch:

  • rating: 98.7%
  • # reviews: 25407

payments mufflermooch:

  • wallet: Apple-pay
  • other
  • credit card: Diners-club

general mufflermooch:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators
  • condition: New

offer mufflermooch:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • best offers: True
  • quantity: 10
  • started: September 22, 2025

shipping mufflermooch:

  • cost: $0.00
  • transit: 3-5 Days
  • service: Economy
  • type: Fixed
  • class: Economy

returns mufflermooch:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for models: x9, part type: muffler,
category: auto parts > car truck parts accessories > exhaust emission systems > mufflers resonators, color: polished, material: 409-grade 16-gauge stainless steel, sku: 9014588199338682,

Street Max SM11239 Is Similar To:

mufflermooch logo
5 offers $64.99–$103.99 USD
  • Offer #1: $103.99 price + free delivery = $103.99* total. The Street Max design incorporates a straight-through core providing optimal flow for improved horsepower and torque. Street Max delivers a deep performance tone without the excessive interior drone or high-pitched external sound frequencies (rasp).FREE SHIPPING
  • Offer #2: $64.99 price + $39.34 delivery = $104.33* total. Muffler Configuration: Offset - Offset 409 SS Oval Exhaust Muffler ( ) by Street Max.+$39.34 shipping
  • Offer #3: $64.99 price + $39.34 delivery = $104.33* total.+$39.34 shipping
  • Offer #4: $64.99 price + $39.34 delivery = $104.33* total.+$39.34 shipping
  • Offer #5: $103.99 price + free delivery = $103.99* total.FREE SHIPPING