2004 C5 Corvette American Racing Full Length Headers w/Severe Duty Cats, Tuning Required (2 Sizes) (Drop ships in approx. 2-3 months)

Vendor: American Racing Headers

SKU: ARH-C5-04134300LSWC


With race-inspired technology built into every system, you're looking at the very best the performance exhaust industry has to offer. Our C5 systems are available with 1-3/4", 1-7/8" or 2" primaries with catted X-pipe mid-section. 1-3/4" mid-sections have a 2-1/2" reduction at the flange to connect to the stock system. Of course, these are manufactured using the highest quality 304 S/S available and require no modifications to install.


  • Adds up to 35 rear-wheel horsepower and 45 lbs. ft. of torque, computer tuning is required (not included)
  • The best-fitting header that maximizes ground clearance
  • The finest quality materials backed by the industry's best warranty and customer service
  • 100% USA sourced T-304 mandrel-bent stainless steel with TIG welds
  • 1-3/4", 1 7/8" or 2" 18 gauge primary tube diameter with ported inlets
  • 3/8" inch surface ground laser-cut flanges, ball and socket connections eliminate leaks
  • NASCAR style merge collectors with scavenger spikes for unbeatable performance
  • Includes X-pipe with severe duty 49 state legal 200 cell metallic substrate catalytic converters
  • ARP grade 8 header bolts, flat out racing gaskets, Torca clamps, and 02 extensions


  • Country Of Origin:  USA 
  • Warranty: Limited lifetime manufacturer
  • Quantity:  Sold as a kit
  • Availability: Ships directly from American Racing Headers to you


  • Not legal for use on pollution-controlled motor vehicles. For off-road use only. The use of long tube headers with aftermarket cats, h-pipe, x-pipe, crossover pipes with or without aftermarket cats or aftermarket cats are illegal for installation and use on emission-legal vehicles when operated on public streets or highways. They can only be legally used while participating in sanctioned motorsports racing events.
  • Purchasing one of these items, you agree that the long tube headers with aftermarket cats, h-pipe, x-pipe crossover pipes with or without aftermarket cats or aftermarket cats purchased from Nowicki Autosport are solely being used for sanctioned motorsports racing events, and when installing or re-selling headers with aftermarket cats, or aftermarket cats, the end consumer is being made aware of and agrees to these terms of use.
  • Some or all of these parts may not comply with federal, state, province, and/or local laws, ordinances, and regulations. The buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. Nowicki Autosport is not responsible for buyer not complying with federal, state, province, and/or local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from Nowicki Autosport. Nowicki Autosport will not ship ANY non-CARB compliant products to California or New York where California or New York requires products to be CARB certified.
Models Years
Coupe 2004
Convertible 2004
Coupe Z51 2004
Convertible Z51 2004
Z06  2004

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