SKU: 3797901086

Fabspeed 991.2 GT3/GT3 RS Sport Headers with HJS Catalytic Converters (FS.POR.9912GT3.SHDR)

Sale price$2573.97 Regular price$2859.97
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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

Fabspeed 991.2 GT3/GT3 RS Sport Headers with HJS Catalytic Converters (FS.POR.9912GT3.SHDR)Why We Choose HJS Catalytic Converters: HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93 95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able

Why We Choose HJS Catalytic Converters:

HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light. If you'd like to learn more, watch our video about HJS catalytic converters.

Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range.

FEATURES:

  • Fits all Porsche 991.2 GT3 / GT3 RS, vehicles 2017- 2019
  • Includes German-imported HJS 200-Cell Tri-Metallic Sportcats. Imported DIRECTLY from HJS Emissions technology by Fabspeed USA.
  • Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
  • Saves 2 lbs from the rear of the vehicle
  • The LARGEST HJS German catalytic converters are chosen for maximum power and reliability. Watch our for small HJS cats. Larger is critical.
  • CNC mandrel-bent 1pc primary header tubes for maximum flow and scavenging
  • High-velocity motorsports-style merge collector
  • Constructed from T304 Stainless Steel
  • Lost wax investment cast inlet flange CAD designed ports for maximum exhaust flow. No ShortCuts.
  • Innovation and Excellence not Imitation from Fabspeed Motorsport.
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

INSTALLATION NOTE:To ensure proper header seal,after initial heat cycle,tighten all exhaust bolts to the OEM torque specs.

 

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

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: 3797901086

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Hodari
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★★★★★ 5
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Size: Large, Color: Purple
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Reviewed in the United States on January 20, 2026
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TeeTee Fields
Belleville, US
★★★★★ 4
Looovveeee it!!
Size: Medium, Color: Royal Blue, Size: Medium, Color: Royal Blue
The suit is amazing!! I just hate it arrived 3 days before prom after being delayed twice. It fit my son great, the blue was exactly as shown. It was not wrinkled or funny smelling at all. The material was very good and it will last a while. My son is 5’11, 150lbs, size medium
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Reviewed in the United States on April 22, 2026
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Kort
Fort Morgan, US
★★★★★ 5
Beautiful tux!
Size: Large, Color: Purple, Size: Large, Color: Purple
I only needed to get the pants hemmed and the tux looked AMAZING on me!
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Reviewed in the United States on May 29, 2026
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Solomon
Carnegie, US
★★★★★ 1
Misleading
Size: Small, Color: Brown
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Godzilla
Natrona Heights, US
★★★★★ 5
Beautifuly made
Size: 3X-Large, Color: Baby Pink
Great product and made well. The attention to detail is outstanding. Looks great on my sister
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Reviewed in the United States on March 24, 2026

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