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Home Exhaust Borla ATAK Axle-Back Exhaust Systems 11921CFBA
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Borla ATAK Axle-Back Exhaust Systems 11921CFBA

$1,456.00

Exhaust System, ATAK, Rear Section, Quad, Stainless Steel, Natural, Split Rear Exit, Chevy, 6.2L, Kit

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Description

Overview

Brand: Borla
Manufacturer’s Part Number: 11921CFBA
Part Type: Exhaust Systems
Product Line: Borla ATAK Axle-Back Exhaust Systems
Summit Racing Part Number: BOR-11921CFBA
UPC: 808422921022
System Material: 304 stainless steel
System Style: Rear axle-back
Exhaust Type: Dual in/Four out
Exit Location: Split rear
System Finish: Natural
Catalytic Converter(s) Included: No
Intermediate Pipe Diameter (in.): 2.75 in.
Muffler Included: Yes
Muffler Quantity: Two
Muffler Configuration: Single inlet/Dual outlet
Muffler Style: Turbo
Muffler Material: 304 stainless steel
Muffler Finish: Natural
Hardware Included: Yes
Inlet Quantity: 2
Tailpipe Diameter (in.): 2.50 in.
Tip Included: Yes
Tip Outlet Size (in.): 4.00
Tip Quantity: 4
Tip Shape: Round
Tip Cut: Slant
Tip Edge Style: Non-rolled edge, single-wall
Tip Material: Carbon fiber
Tip Color: Carbon fiber
Remanufactured: No
Quantity: Sold as a kit.
Notes: Fits models equipped with NPP Dual Mode Exhaust.
Special Attention: It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Borla ATAK Axle-Back Exhaust Systems

Installed behind the rear axle, Borla ATAK axle-back exhaust systems replace the factory rear muffler(s) and exhaust pipe(s). Following the same exhaust path and secured using the original hangers and rubber isolators, Borla axle-back (rear section) performance exhausts are less restrictive than factory exhaust systems. Welded tips are standard on most systems.

ATAK (Acoustically Tuned Applied Kinetics) technology is designed for high-performance purists who prefer exhaust sound over their stereos. ATAK-equipped exhaust systems deliver the highest available dB (decibel) levels in the Borla street-legal lineup. Unlike inferior brands that lose significant sound quality at higher volumes, ATAK systems are tuned like a graphic equalizer to shape and focus sound waves for optimum high-volume output. They are calibrated on a vehicle-by-vehicle basis and their specifically-tuned internal muffler cores deliver the most desirable sound.

Many vehicles have a factory service-point in the exhaust system (flange or slip-fit) located in the exhaust tubing behind the rear axle; so most Borla ATAK axle-back installations are completed in less than an hour with no cutting of the factory system. Vehicles that don’t have a factory service-point require cutting, so Borla includes easy-to-follow instructions and hardware to complete the installation.

Borla pioneered the use of aircraft-grade 304 stainless steel tubing, a material with a higher content of carbon and nickel that won’t rust or corrode, for the automotive exhaust aftermarket … including Borla ATAK axle-back exhaust systems with the power of race-winning Borla Multicore technology.

 

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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