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Bbk

BBK 05-09 Mustang 4.0 V6 True Dual Cat Back Exhaust Conversion Kit With X pipe

SKU: BBK4011

Exhaust Systems

BBK True Dual Exhaust Kit...

Bbk

Bbk

BBK 05-09 Mustang 4.0 V6 True Dual Cat Back Exhaust Conversion Kit With X pipe

SKU: BBK4011

Exhaust Systems

BBK True Dual Exhaust Kit...

A$2,300.54
LAST ONE! Est Ship 4-7 days. In stock at 1 location (only 1 available)

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Description

Exhaust X-Pipe - Dual Exhaust Conversion - Catted - 2.5 in Diameter - Steel - Aluminized - Ford V6 - Ford Mustang 2005-09 - Kit

Exhaust Pipes

Convert the single exhaust on your 2005-2009 Mustang V6 into a true dual set up with this BBK dual exhaust conversion kit. Combining a GT axle back and the included BBK Performance off road x-pipe will dramatically increase the sound of your Mustang to a roar that will be sure to turn heads. This conversion kit designed to be used with factory or aftermarket shorty style headers and requires the use of an axle back exhaust for Mustang GT and both driver side exhaust hanger brackets (not included). The rear bumper cover will need to be modified to clear the driver's side exhaust tip, or you can use a GT bumper cover. BBK V6 Mustang dual exhaust conversion kits include a full 2.5" mandrel bent stainless steel X pipe with high flow catalytic converters along with the added drivers side tail pipe.

Additional Information

High Flow True Dual V6 Mustang Exhaust Conversion; 2.5 in.; X-Pipes w/Converters;

Part Type

Exhaust X Pipe

Data: v4.2 - Upd: 2026-11-07 23:33:38

Features

  • Improve Appearance and Add an Aggressive Exhaust Note - 2.5" CNC Mandrel Bent Stainless Tubing with X-Pipe Center Section
  • Made In The USA

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 16:57:43

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Bbk, Bbk Performance, BBK Performance Parts
StreetFX SKU bbk4011
SFX Item ID 4194139
Accounting SKU bbk-4011
Manufacturer SKU 4011
Manufacturer UPC 197975040114
Alternative References 4011, BBK-4011

Exhaust Conversion System, True Dual Conversion, Aluminized Steel, Ford, 2005-10 Mustang, 4.0L V6, Requires a Separate Axle Back System, Kit

BBK Mustang V6 catted dual exhaust conversion systems offer two performance exhaust upgrades in one kit. First, the kits upgrade any 2005-10 Ford Mustang 4.0L V6 to a true dual cat-back exhaust system. Second, you are adding a high performance, high-flow X-pipe system. You will love the additional horsepower and the free-spirited and aggressive V8-style growl.

These free flowing Mustang V6 dual exhaust and X-pipe kits feature high-flow steel substrate catalytic converters and mandrel-bent tubing for maximum exhaust flow. All factory hangers are re-used along with new supplied hangers and hardware, that makes the installation simple. Best of all, the kit is designed to be used with a stock axle-back system, or your choice of aftermarket options to fine-tune your desired sound!

Product Attributes
BrandBBK Performance
Manufacturer's Part Number4011
Part TypeExhaust Systems
Product LineBBK Mustang V6 Catted Dual Exhaust Conversion Systems
UPC197975040114
System MaterialSteel
System StyleManifold/Shorty header back
Exhaust TypeDual
System FinishNatural
Catalytic Converter(s) IncludedYes
Intermediate Pipe Diameter (in.)2.50 in.
Muffler IncludedNo
Hardware IncludedYes
Inlet Quantity2
Tailpipe Diameter (in.)2.50 in.
Tip IncludedNo
RemanufacturedNo
QuantitySold as a kit.
NotesDesigned to be used when installing an axle back exhaust system on V6 models.
Special AttentionIt 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.

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