G-Sport Gen2 UHO EPA Compliant Catalytic Converter 6 Pack - 4.000" Inlet/Outlet (685240)

Also available: Single unit (85240) | 6-Pack in 3.000" (685230)

FABRICATOR 6-PACK — G-SPORT GEN2 ADVANCED UHO CATALYTIC CONVERTERS, 4.000"

This listing is a Fabricator 6-Pack: six G-Sport Gen2 Advanced UHO (Ultra High Output) Catalytic Converters (part number 85240) at a discounted per-unit price. With a full 4.000" inlet/outlet and an 850hp-per-converter rating, this is the pack for shops building big-bore, high-output systems on late-model platforms.

The GEN2 Advanced series pairs GESi's proven 400 CPSI S-Wound metallic substrate with their latest proprietary precious-metal coating, developed for the advanced OBD monitoring on 2017 and newer vehicles — the combination that prevents catalyst-related check engine lights on late-model platforms. Gen2 is fully compatible with earlier model years as well.

FEATURES

• Set of six GSP85240 converters at a discounted per-unit price
• Rated up to 850hp per converter — 4.500" body, full 4.000" inlet/outlet
• 400 CPSI S-Wound metallic substrate with proprietary GEN2 wash coat for 2017+ emissions monitoring
• Nickel-lined, furnace-brazed core with Double-Lock canning; 300 Series stainless steel throughout; spikes up to 1,600°F
• EPA compliant — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)

SPECIFICATIONS (PER CONVERTER)

• Sold As: Set of six (part number 85240)
• Inlet/Outlet: 4.000"
• Body Diameter: 4.500" OD
• Overall Length: 7.000" (±0.125")
• Cell Count: 400 CPSI
• HP Rating: up to 850hp per converter (per exhaust bank)
• Substrate: S-Wound metallic, furnace-brazed
• Material: 300 Series stainless steel
• EPA Compliant: Yes (not CARB certified)
• Weight: 3.73 lbs each
• Connection: Welding Required

APPLICATIONS & FITMENT

Ideal for shops building systems between 500hp and 850hp per exhaust bank on 4.000" tubing. Install each converter as close to the OEM location as practical — on custom systems, within 8"–24" of the turbo outlet or header collector — and always run the same model on both banks of a dual-bank system.

For the full selection guide, see Understanding the G-Sport Catalytic Converter Lineup and our G-Sport FAQ; installation best practices are in our G-Sport Installation Guidelines.

Running volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email sales@aceraceparts.com. For fitment or sizing questions, reach us at support@aceraceparts.com.