Connection Pipe

Upgrade your Z4 M Coupe exhaust with the Twisted Steel 2 ½" race pipe. Mandrel bent from 304 stainless steel tubing for maximum exhaust flow and corrosion resistance, the mitered merge "X" pipe eliminates drone and maximize scavenging. This system delivers gains of up to +13 horsepower and +20 lbs. x ft. of torque when tested with PN 49-36339 exhaust and are 100% hand TIG-welded for strength and durability. Includes high quality gaskets and is a direct bolt-on system for a secure, leak-free installation. In house dyno testing produced gains of up to +13 horsepower and +20 lbs. x ft. torque (tested with 49-36339 exhaust). 2-1/2", mandrel-bent, 304 s tainless steel tubing for maximum performance, corrosion resistance, strength, and durability. A mitered merge "X" pipe is used to balance and evenly distribute exhaust pulses traveling through the exhaust system, minimizing exhaust drone and maximizing scavenging. 100% TIG-welded by certified craft smen for race proven strength and durability. TIG-welding provides the strongest welds.

Additional Information

Twisted Steel 2-1/2 IN 304 Stainless Steel X-Pipe BMW M3 (E46) 01-06 L6-3.2L S54

Product Overview

Upgrade your Z4 M Coupe exhaust with the Twisted Steel 2 ½" race pipe. Mandrel bent from 304 stainless steel tubing for maximum exhaust flow and corrosion resistance, the mitered merge "X" pipe eliminates drone and maximize scavenging. This system delivers gains of up to +13 horsepower and +20 lbs. x ft. of torque when tested with PN 49-36339 exhaust and are 100% hand TIG-welded for strength and durability. Includes high quality gaskets and is a direct bolt-on system for a secure, leak-free installation. In house dyno testing produced gains of up to +13 horsepower and +20 lbs. x ft. torque (tested with 49-36339 exhaust). 2-1/2", mandrel-bent, 304 s tainless steel tubing for maximum performance, corrosion resistance, strength, and durability. A mitered merge "X" pipe is used to balance and evenly distribute exhaust pulses traveling through the exhaust system, minimizing exhaust drone and maximizing scavenging. 100% TIG-welded by certified craft smen for race proven strength and durability. TIG-welding provides the strongest welds.

• 100% MIG Welded
• Integrated X Pipe
• Quality Gaskets

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.

Product Details

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.

Reference Information

Twisted Steel 2-1/2 IN 304 Stainless Steel Race Series X-Pipe