aFe Power Twisted Steel Performance Headers W/ Sport Cats - E46 M3, Z3/4 M S54

Product Details

aFe Power's Twisted Steel catted headers deliver 15hp and 14lbs. ft. torque while outflowing the factory cats. These headers use 400cpsi sport cats in place of the factory cats in the headers. aFe's headers outflow the stock cats and manifolds thanks to optimized primary lengths, oversized tubing, and a precison-made 3-1 merge collector for each bank. These headers are crafted in California using TIG-welding, smooth mandrel-bent tubing, and increased pipe diameters. State of the art design removes restriction and keeps exhaust gas flowing smoothly for improved performance and durability. All components are supplied for a hassle-free installation with no modifications necessary.

DETAILS:

• 1-5/8” primary tubing into 2-1/2” tubing
• Mandrel-bent for unrestricted flow
• 3/8 IN thick, 304 stainless steel laser cut head flanges
• Includes EPA-compliant catalytic converters
• 3-to-1 mitered merge collectors decrease turbulence and increases exhaust velocity
• Optimized tube lengths improve flow and performance
• Retains factory sensors
• 100% hand TIG-welded construction ensures optimal strength and durability

Features:

• Optimized Tube Lengths:
  • Tube lengths are optimized for true pulse control technology, which improves flow and performance.
• Catalytic Converters:
  • Includes EPA-compliant catalytic converters.
• Retain Factory Sensors:
  • This system was designed to retain all your factory sensors for a hassle-free installation.
• Laser Cut Header Flanges:
  • High quality laser cut 304 stainless steel header flanges provides superior sealing at the head surface.
• 304 Stainless Steel Tubing:
  • High grade stainless tubing with a uniform brushed finish provides a beautiful look and high resistance to corrosion.
• Mitered Merge Collectors:
  • 3-to-1 mitered merge collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.
• TIG-Welded:
  • 100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.
• aFe headers and exhaust are engineered and manufactured in our Corona, California manufacturing facility.

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

Prop 65 Warning

Product Q&A

Lifetime Replacement

Fits These Cars