AP EXHAUST 48731 Pipe Bpf 14603666-101

( Brand: Ap Exhaust ), ( Type: Exhaust Pipe ), ( Manufacturer Part Number: 48731 ), ( Item Length: 44.750 ), ( Manufacturer Warranty: 1 Year ), ( Ipn: 14603666-101 ), ( California Prop 65 Warning: Prop65 Warning )

Review AP EXHAUST Pipe Bpf

The AP Exhaust 48731 Cat-Back Exhaust System is a high-performance aftermarket exhaust solution designed specifically for BMW M3 and M4 models equipped with the N55 and N57 engines. This cat-back exhaust system replaces the stock exhaust from the catalytic converters, all the way to the rear tips, providing a significant improvement in performance and exhaust sound.

The 48731 system is made from premium T304 stainless steel, ensuring durability and resistance to corrosion. Its mandrel-bent design maintains the original exhaust flow and minimizes restriction, allowing for maximum power gain and improved throttle response. The system also features a 2.5-inch diameter exhaust pipe, which increases the flow rate of exhaust gases and reduces backpressure.

The AP Exhaust 48731 system comes with a high-flow sports catalytic converter that is designed to reduce the amount of harmful emissions while maintaining the performance gains. The system also includes a pair of high-quality, polished stainless steel exhaust tips with a diameter of 100mm (4 inches), giving the car an aggressive and sporty look.

One of the key benefits of the AP Exhaust 48731 system is the significant improvement in exhaust sound. The system produces a deep, resonant tone that is both aggressive and refined, adding to the overall driving experience. The sound is not overly loud or obtrusive, making it suitable for daily driving and track use.

Installation of the AP Exhaust 48731 system is relatively straightforward and can be done by an experienced DIY enthusiast or a professional mechanic. The system comes with all necessary hardware and instructions, making the installation process as seamless as possible.

In summary, the AP Exhaust 48731 Cat-Back Exhaust System is a high-quality, performance-oriented exhaust solution that provides significant power gains, improved exhaust sound, and a more aggressive appearance for BMW M3 and M4 models with N55 and N57 engines. It is made from premium T304 stainless steel, features a mandrel-bent design, and comes with a high-flow sports catalytic converter and polished stainless steel tips.

Buying a BorgWarner Series 48731 Catalytic Converter Back Pressure (BPF) exhaust pipe for your vehicle involves considering several pros and cons. This component is responsible for reducing exhaust gas emissions and improving engine performance. Here are some potential benefits and drawbacks of investing in this part.

1. Improved Engine Performance: A BPF exhaust pipe can lead to enhanced engine performance by reducing back pressure in the exhaust system, allowing the engine to breathe better and produce more power.

2. Reduced Emissions: The catalytic converter in the BPF pipe is designed to minimize harmful emissions, making your vehicle more eco-friendly and environmentally responsible.

3. Longer Lasting: The BPF pipe is typically made from high-quality materials, ensuring durability and longevity. This can save you money in the long run by reducing the need for frequent replacements.

4. Enhanced Sound: A BPF exhaust pipe can provide a more pleasing exhaust note, as it allows gases to exit the exhaust system more freely, producing a deeper and richer exhaust tone.

1. Expense: The cost of a BPF exhaust pipe can be relatively high compared to other exhaust components. This investment may not be feasible for everyone's budget.

2. Complex Installation: Installing a BPF exhaust pipe requires a certain level of expertise and knowledge. If you are not comfortable working on your vehicle, it is recommended to seek professional assistance to ensure proper installation and function.

3. Potential for Increased Noise: While some people may enjoy the enhanced exhaust sound, others may find it to be excessively loud. Installing a BPF exhaust pipe may not be suitable for those who prefer a quieter driving experience.

The decision to invest in a BPF exhaust pipe (BorgWarner Series 48731) depends on your personal preferences, budget, and priorities. If you are looking for improved engine performance, reduced emissions, and a more pleasing exhaust note, this component may be a worthwhile investment. However, if you are concerned about the cost, complexity of installation, or potential for increased noise, it may be best to consider other options. Ultimately, it is essential to weigh the pros and cons carefully before making a final decision.

If you decide to proceed with purchasing a BPF exhaust pipe, make sure to choose a reputable supplier or manufacturer. Research the product thoroughly and read reviews from other customers to ensure you are getting a high-quality component. Additionally, consider seeking professional assistance for installation to ensure proper function and performance.

part # 48731 prices

• $156.95-$190.41

specifications frazzlekits:

• brand: Ap Exhaust
• type: Exhaust Pipe
• manufacturer part number: 48731
• item length: 44.750
• manufacturer warranty: 1 Year
• interchange part number: 14603666-101
• california prop 65 warning: Prop65 Warning

payments frazzlekits:

• credit card: Discover
• other
• wallet: Apple-pay

shipping frazzlekits:

• service: Standard, Expedited, Overnight
• type: Fixed
• cost: $0.00
• transit: 3-6 Days
• class: Standard, Expedited, One-day

seller frazzlekits:

• # reviews: 12786
• rating: 99.1%

offer frazzlekits:

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

general frazzlekits:

• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
• condition: New

returns frazzlekits:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

Ap Exhaust 48731 Is Similar To:

• Srm Ap-lp610-170 Lamborghini Huracan Lp580 Lp610 Exhaust Muffler (27% similar) $1499.00. (October 21st, 2024)
• Agency Power Ap-brp-x3-170-blk Valvetronic Exhaust With Black Tips 2017 - 2025 Can-am Maverick X3 (24.6% similar) $1200.00–$1375.00. (November 25th, 2024)
• Magnaflow 15620-ap Exhaust System Kit For 1995 Chevrolet 5.7l V8 Gas Ohv (24.7% similar) $754.00. (December 12th, 2024)
• Ap Exhaust 8786 Flange Bpf (74.5% similar) $16.79–$32.67. (December 21st, 2024)
• Apm 160400 Ap Sentra 00-2002 Ca Xe Gxe 1.8l Converter To Engine Flex Pipe (22.4% similar) Check vehicle for compatibility. Kit includes: 1 x part# 3A1452 engine flex pipe, connect your front pre converter to rear converter, 2/3 1321 front gaskets, 31578 rear gasket. (December 22nd, 2024)
• Ap Exhaust F5309 Spring (58.3% similar) $17.41. (December 22nd, 2024)
• Ap Exhaust 4979 Spring (63.8% similar) $11.81–$36.99. (December 22nd, 2024)
• Ap Exhaust 9162 Flange (59.6% similar) $6.31–$33.99. (January 27th, 2025)
• Ap Exhaust 18180 Pipe Tcp (76% similar) $30.41. (February 2nd, 2025)
• Apm 164049 Ap New Engine Flex Pipe Made In Usa Front Converters For Edge 2.0l Turbo 13-16 (17.5% similar) $591.00. (February 9th, 2025)
• Apm 160960 Ap Muffler Exhaust System Made In Usa D Escape Mazda Tribute 2.0 3.0 05-08 (27.3% similar) $174.00. (February 15th, 2025)