SKU: 83338924880

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long (85200)

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Description

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long (85200)GESI G Sport part number 85200 is ONLY the Catalytic Core. G Sport Transition Cones are sold separately. G Sport Gen2 EPA Compliant Catalytic Converter Core 4. 500" Body x 4. 000" Long (85200) G SPORT EMISSIONS SYSTEMS DESIGNED FOR PERFORMANCE Typical catalytic converters include ceramic substrates that have a higher rate of cracking, degradation or cause too much back pressure in vehicle exhausts. G Sport Emissions Systems High Performance GEN1

GESI G-Sport part number 85200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately.

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long (85200)

G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE

Typical catalytic converters include ceramic substrates that have a higher rate of cracking, degradation or cause too much back pressure in vehicle exhausts. G-Sport Emissions Systems High Performance GEN1 Advanced Catalytic Converters are designed with our proven S-Wound metallic substrate for added durability. The substrate is then lined with nickel strips, and furnace-brazed to provide a solid bond throughout the core and to its mantle. This process, and our ‘Double-Lock’ transition cone application, ensure the core will not telescope or fail in high performance environments.

For best emissions control capabilities without performance degradation, G-Sport designed our high flow GEN1 Advanced Catalytic Converters with 300 cells per square inch (CPSI). Our advanced substrate design, combined with our proprietary wash coat nano-technology, ensures the highest level of emissions reduction with comparable flow rates of similar 200 CPSI converters on the market.

HOW DOES A CATALYTIC CONVERTER WORK? CHEMISTRY 101

Our G-Sport Emissions Systems Catalytic Converter is a three-way catalyst that reduces up to 99% of harmful exhaust emissions in vehicles. By targeting the three main exhaust gases, Hydrocarbons, Nitrogen Oxides and Carbon Monoxide, our proprietary wash coat technology of precious metals, separates the toxic compound structures to create environmentally neutral Water, Nitrogen and Carbon Dioxide as byproducts.

This process is enhanced by G-Sport’s precise transition cones and triangle-based substrate pattern that enhance flow and residency time for optimal conversion and performance.

NEW EMISSIONS REQUIREMENTS - NEW G-SPORT TECHNOLOGIES

For years G-Sport by GESi has addressed the needs of performance enthusiasts with well-built, emissions compliant aftermarket solutions. To date, our existing GEN1 line has provided emissions compliance and addressed check engine lights while maintaining the performance levels required in forced-induction applications in vehicles up to 2016 model year.

With the updated emissions requirements in 2017 and newer vehicles, G-Sport by GESi has developed a new GEN2 catalytic S-Wound core design with an updated proprietary precious metal coating. The new proprietary coating addresses the latest emission standards in newer vehicles while providing support for up to 1,200 hp with increased OD sizes of up to 6 inches.

Introducing the latest technology and product enhancements – our Advanced Series lineup now includes our proven S-Wound core technology in both Gen1 and Gen2 with new emission control solutions including Diesel Oxidation Catalysts and Mid-bed Catalytic Converters!

G-SPORT EPA COMPLIANT TECHNOLOGY VS. NON-EPA COMPLIANT MODELS

G-Sport by GESi® prides itself on building the highest quality emissions solutions. To address the needs of performance enthusiasts all of our G-Sport models incorporate our C3 Process in constructing each catalytic converter with high-grade stainless steel inside and out. Our metallic core is furnace-brazed and held in place with our Double-lock technology to ensure it will not telescope like lower-quality solutions on the market.

The key difference between models is our EPA Compliant catalytic converters have been third-party lab tested to meet or exceed local emissions standards in North America (excluding California) and will address Check Engine light issues with proper engine setup.

Our Non-EPA models are built with the same high-end construction, but do not offer the emissions compliant coating to meet local regulations and will not eliminate the check engine light. These models are best suited in applications where a stock catalytic converter was not offered from the OEM (vehicle years 1973 and older) as well as any off-road application such as trail or race.

Shipping Notes
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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]
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SKU: 83338924880

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Sweet_Gato
Belleville, US
★★★★★ 5
Perfect Fit and Amazing Quality – Highly Recommend!
Color: Black, Size: 12, Color: Black, Size: 12
I am absolutely thrilled with this boys’ formal vest! The size was spot on—it fit perfectly without being too tight or too loose, which can be hard to find for kids’ dress clothes. The material feels premium, soft yet structured, and it looks much more expensive than it actually is. I ordered it for a wedding where my son was the ring bearer, and it photographed beautifully. It gave him such a classy, well-dressed look while still allowing him to move comfortably through the day. The stitching and finish are top-notch, and the color stayed vibrant even after washing. It paired perfectly with a white shirt and dress pants we already had. I also appreciate how versatile it is—it’ll be great for Easter, family photos, or any other special occasion. Overall, I’m extremely happy with the quality, fit, and style of this vest. Definitely a 5-star purchase that I would buy again without hesitation!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
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c'est la vie🎉😘
Fort Morgan, US
★★★★★ 5
Perfect Suit Great Quality and Value
Color: Lavender Purple, Size: 6 Years, Color: Lavender Purple, Size: 6 Years
I love at how nice this boys suit turned out. The slim fit gives it a stylish, elegant look, and it makes my nephew look so sharp and grown up. Fit true to size. The material feels good quality, not thin or cheap, and it’s definitely nicer than I expected for the price. I really like that it comes as a full set, which made things so much easier instead of having to buy down extra pieces. Love the tie and the vest, so cute. He wore it for a special event and got so many compliments, people couldn’t believe how handsome he looked. It stayed looking neat all day, and he was able to move around comfortably. I could easily see him wearing this again for weddings, church, holidays, or even school pictures. Overall, it’s a great buy if you want your little guy to look dressed up without spending a fortune. Beautiful boys suit, stylish and elegant, great value and quality. Wash inside out, and air dry.
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Reviewed in the United States on August 26, 2025
K
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Keneisha Morris
Belleville, US
★★★★★ 5
One of the best suits out there!!
Color: Christmas Green, Size: 8 Years
I am not one who write reviews, so the fact that I'm penning this review you should know. These suits are the best, the sizing, the fit, the quality everything is perfect. I bought for my 3 sons and they all fit well, I was worried about the fit because one of my son is slender but tall so length things would be okay but waist toooo big, with this suit everything was on point. Ages: 13-14(about 5"4-5"5 have a little body wouldn't consider husky) got him size 18, 10-11(slender but a little tall for his age) got him size 14, 9yr old(average height and body size) got him size 8. Can't beat the price and for 6 pieces(pants, vest, jacket, shirt, tie, bowtie)
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Reviewed in the United States on April 2, 2026
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Lori
Grantham, US
★★★★★ 5
Great buy
Color: Champagne, Size: 6 Years
I bought 3 sizes for my sons to wear at our wedding. They are heavy duty quality material. The dress shirts are a little stiff and snug but also great quality. Would buy again 100%
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Reviewed in the United States on May 24, 2026
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Shaun
West Palm Beach, US
★★★★★ 5
Perfect fit!
Color: Lavender Purple, Size: 12 Years, Color: Lavender Purple, Size: 12 Years
It’s perfect! Just get it, like now!!!
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Reviewed in the United States on May 4, 2026

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