SKU: 74131954303

aFe Twisted Steel Long Tube Header 304 Stainless Steel w/ Cat - BMW / S54 / E46 M3 / Z3 MCoupe / M Roadster / Z4 MCoupe / M Roadster

Sale price$2010.14 Regular price$2233.49
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

aFe Twisted Steel Long Tube Header 304 Stainless Steel w/ Cat - BMW / S54 / E46 M3 / Z3 MCoupe / M Roadster / Z4 MCoupe / M Roadster1 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 Optimized Tube Lengths: Tube lengths are

  • 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

 

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.

Emissions Disclaimer:
This product is EPA compliant, not for sale or use on vehicles certified for the state of California. Consult your state or local authority for any additional clarification. Replacement of catalytic converters (if equipped) is allowed only under the following conditions: 1) if the vehicle is missing a converter; 2) if a state or local inspection program has determined the existing converter has been lead-poisoned or damaged or otherwise needs replacement; or 3) if the vehicle is more than five (5) years old or has more than 50,000 miles and a legitimate need for replacement has been established and documented. This product only fits those vehicles as listed in the application table.

aFe headers and exhaust are engineered and manufactured in our Corona, California manufacturing facility.

Download Installation Guide 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74131954303

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4.8 ★★★★★
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Emma
Belleville, US
★★★★★ 4
Good quality for the money
Size: 10, Color: White
Really happy with the fit! The pants are a little big, but it’s nothing a belt can’t fix. The sleeves are on the short side, but my son is very tall so that could be the issue. My main complaint is the buttons get caught on threads when you’re buttoning and unbuttoning. So the quality isn’t perfect, but for the money it’s not too bad. Besides that, it’s very sleek white, slim fit, and looks great.
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Reviewed in the United States on March 26, 2026
Y
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Yamileth Castillo
Bozeman, US
★★★★★ 5
Está muy bonito
Size: 5, Color: Light Champagne
Está muy bonito la tela está fresca trae todas los accesorios q dice le doy 10/10
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Reviewed in the United States on May 26, 2026
T
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Tania pizarro
Fort Morgan, US
★★★★★ 5
Muy satisfecha con la compra
Size: 14, Color: Black
Está perfecto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
F
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Farryn
Los Angeles, US
★★★★★ 5
Great fit!
Color: Black, Size: 10 Years, Color: Black, Size: 10 Years
My son is 10 years old, about 4’ 8” and around 80 lbs. I ordered the size 10 and it fits him perfectly! We did need to tighten up the waist of the pants so I was very thankful they have the adjustable waist. He looks so handsome in the tuxedo and the material seems to be comfortable even though it’s polyester. The regular tie hangs down too far so I will have to figure out the best way to adjust it to sit where it’s supposed to but the bow tie does have an adjustable strap. For the price I don’t think it can be beat, great value!
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Reviewed in the United States on May 13, 2026
F
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faith
Louisville, US
★★★★★ 5
Autism Awareness
Color: Light Grey, Size: 14 Years, Color: Light Grey, Size: 14 Years
A little big, but the adjustable band helps. Good material and he looked great!
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Reviewed in the United States on April 30, 2026

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