1. Manifolds & Headers Offered
  2. sku: 10978740297719771
  3. MBRP EXHAUST S4501304

MBRP EXHAUST S4501304 Armor Pro Resonator Bypass 882963131478

fits model: M3, M4. year: 2021–2026.

S4501304 Mbrp Exhaust Armor Pro Resonator Bypass Fits 21 26 M3 M4

( Brand: Mbrp Exhaust ), ( Type: Exhaust Resonator Delete Pipe ), ( Material: Material ), ( Manufacturer Part Number: S4501304 ), ( Item Height: 7.750 ), ( Item Length: 42.750 ), ( Item Width: 17.100 ), ( UPC: 882963131478 )

Review MBRP EXHAUST Armor Pro Resonator Bypass fits M3 M4 2021–2026

The MBRP Exhaust S4501304 ArmorPro Resonator Bypass is a performance exhaust component designed for select 2005-2014 Mercedes-Benz ML350, ML450, ML550, GL320, GL450, GL550, R350, and R450 models with a 21" to 26" exhaust system. This bypass is part of the ArmorPro series, which is engineered to deliver powerful sound and enhanced durability.

This resonator bypass is a high-flow component that eliminates the factory resonator, allowing for an increased exhaust flow and improved performance. The result is a more responsive engine and a deeper, more aggressive exhaust note. The bypass is constructed from 304 stainless steel, which is known for its strength and corrosion resistance, ensuring long-lasting performance.

The ArmorPro Resonator Bypass features a polished finish, adding a touch of style to your vehicle's exhaust system. The kit includes all necessary hardware for installation, making it a straightforward process for the average DIY enthusiast. However, for those who prefer professional installation, MBRP offers an optional installation service.

This bypass is designed to fit seamlessly into your existing exhaust system, with no modifications required. It is also CARB certified, making it an excellent choice for those who live in California or other states with strict emissions regulations.

In summary, the MBRP Exhaust S4501304 ArmorPro Resonator Bypass is a high-performance exhaust component that delivers increased power, improved engine responsiveness, and a deeper exhaust note. It is constructed from durable 304 stainless steel, features a polished finish, and is CARB certified for use in California and other emission-regulated states. With easy installation and a straightforward bolt-on design, this bypass is an excellent choice for anyone looking to enhance the performance and sound of their Mercedes-Benz vehicle.

Pros and Cons of Buying MBRP Exhaust S4501304 ArmorPro Resonator Bypass for M3 and M4

Introduction:

The MBRP Exhaust S4501304 ArmorPro Resonator Bypass is a popular aftermarket performance exhaust component designed for BMW M3 and M4 models. This component aims to provide improved exhaust flow, increased power, and a more aggressive exhaust note. In this analysis, we will discuss the potential benefits and drawbacks of purchasing this product.

Pros:

1. Power Gain: The primary benefit of installing an MBRP ArmorPro Resonator Bypass is the potential power gain. By reducing restriction in the exhaust system, engine performance is enhanced, resulting in more horsepower and torque.

2. Improved Exhaust Note: Another advantage is the enhanced exhaust note that comes with this component. The bypass resonator eliminates the factory resonator, resulting in a deeper, more aggressive exhaust tone.

3. Durability: MBRP builds their components with high-quality materials, ensuring a long-lasting exhaust system. The ArmorPro series is designed with a robust mandrel-bent stainless steel construction, guaranteeing strength and corrosion resistance.

4. Performance: By removing the restrictive resonator, exhaust gases are allowed to flow more freely, improving overall exhaust performance and increasing engine responsiveness.

Cons:

1. Loud Exhaust Note: The primary disadvantage of installing an MBRP ArmorPro Resonator Bypass is the significantly louder exhaust note. This may not be desirable for all drivers, especially in urban environments where noise levels are regulated.

2. Cost: The price point of this aftermarket component may be a deterrent for some buyers. While the cost can vary depending on the retailer and location, it is generally more expensive than the stock resonator.

3. Maintenance: An aftermarket exhaust system like the MBRP ArmorPro Resonator Bypass may require more maintenance than the stock component. This includes regular check-ups and potential repairs or replacements over time.

Conclusion:

The MBRP Exhaust S4501304 ArmorPro Resonator Bypass offers several benefits for BMW M3 and M4 owners, including increased power, improved exhaust note, and enhanced durability. However, it also comes with some drawbacks, such as a significantly louder exhaust note and a higher cost compared to the stock resonator. Ultimately, the decision to purchase this component depends on individual preferences and priorities. If you value performance, a more aggressive exhaust note, and durability, then the MBRP ArmorPro Resonator Bypass may be an excellent investment. However, if you prefer a quieter exhaust system and are budget-conscious, it may be best to stick with the stock resonator.

Recommendation:

If you are considering purchasing the MBRP Exhaust S4501304 ArmorPro Resonator Bypass for your BMW M3 or M4, we recommend carefully considering your personal preferences and priorities before making a decision. Weigh the benefits of increased power, improved exhaust note, and enhanced durability against the drawbacks of a louder exhaust note and higher cost. If you are confident that the benefits outweigh the drawbacks, then this aftermarket component may be a worthwhile investment for you. However, if you prioritize a quieter exhaust system or are budget-conscious, it may be best to stick with the stock resonator.

part # s4501304 price

  • $734.99

specifications maniheader:

  • for models: M3, M4
  • for years: 2021-2026
  • brand: Mbrp Exhaust
  • type: Exhaust Resonator Delete Pipe
  • material: Material
  • manufacturer part number: S4501304
  • item height: 7.750
  • item length: 42.750
  • item width: 17.100
  • upc: 882963131478

payments maniheader:

  • other
  • wallet: Paypal
  • credit card: Visa

shipping maniheader:

  • service: Standard
  • type: Fixed
  • cost: $0.00
  • transit: 2-4 Days
  • class: Standard

general maniheader:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
  • condition: New

offer maniheader:

  • quantity: 4
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: March 3, 2026

seller maniheader:

  • rating: 98.8%
  • # reviews: 84063

returns maniheader:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days
for models: m3, m4, for years: 2021-2026, type: exhaust resonator delete pipe, item height: 7.750, item length: 42.750, item width: 17.100,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, material: material, sku: 10978740297719771,

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