SKU: 94253445475

G-Sport Gen2 UHO+ EPA Compliant Catalytic Converter Core - 5.000" Body x 7.000" Long - Mid-Bed Series (25001)

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Description

G-Sport Gen2 UHO+ EPA Compliant Catalytic Converter Core - 5.000" Body x 7.000" Long - Mid-Bed Series (25001)GESI G Sport part number 25001 is ONLY the Catalytic Core. G Sport Transition Cones are sold separately. WHAT IS A "MID BED" CATALYTIC CONVERTER? Mid Bed is a specific type of Gen2 catalytic converter that contains two separate catalyst bricks within a single housing, with an oxygen sensor port located between them. This mirrors the layout commonly found in many OEM catalytic converters. The Mid Bed option was developed to provide a high performance,

GESI G-Sport part number 25001 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately.


WHAT IS A "MID-BED" CATALYTIC CONVERTER?

Mid-Bed is a specific type of Gen2 catalytic converter that contains two separate catalyst bricks within a single housing, with an oxygen sensor port located between them. This mirrors the layout commonly found in many OEM catalytic converters.

The Mid-Bed option was developed to provide a high-performance, emissions-compliant replacement that maintains the physical and functional characteristics of factory catalytic systems—while benefiting from GESI’s proven durability and flow performance.


G-Sport Gen2 UHO+ EPA Compliant Catalytic Converter Core - 5.000" Body x 7.000" Long - Mid-Bed Series (25001)

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
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 94253445475

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Olga K.
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★★★★★ 1
Oddly shaped dress
Size: Large, Color: Black
I retuned it because the shape of the dress was little off. I really wanted to like the dress but I didn’t .
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Reviewed in the United States on April 18, 2026
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Emma Woodhouse
Carnegie, US
★★★★★ 4
Cute for warm weather, but consider sizing down!
Size: X-Small, Color: Golden Yellow Beige Multi Folk Floral
I liked this dress and probably would have kept it if it fit me. The material is not very thick, but I think thin cotton is ideal for a summer dress anyway. The slightly glossy/shiny feel of the sateen is a bit unusual, but didn't bother me. I LOVE that it has pockets. Just keep in mind that something heavy like a phone will weigh the skirt down and make it sit slightly differently. Can't speak to the long-term durability or how it washes, but the overall construction looked decent - no unraveling seams or glaring quality control issues. Sadly, it does not seem TTS to me. I am 5'2", 115lb. Bought my usual XS. It hit about mid-shin, so not too long, but it was quite large, especially in the chest and waist. It was less noticeable with the skirt since it is loose and pretty forgiving - if you are bottom-heavy and nervous about sizing down to fit your upper body, I wouldn't worry too much.
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Reviewed in the United States on December 30, 2025
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Hashbrown Emotions
Boise, US
★★★★★ 5
Great for the price. And POCKETS!
Size: X-Large, Color: Black, Size: X-Large, Color: Black
I don’t have a full body shot but the dress is lovely. I bought it for a party and it was comfortable the entire evening. Very light and not sheer. It fit very well and of course POCKETS! I will wear it again I’m sure. I don’t know if it will last for very long in the future, but for the price it is simply worth it to have a nice light dress for the summer.
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Reviewed in the United States on August 10, 2025
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Cassie Miller
Fort Morgan, US
★★★★★ 5
So cute!
Size: Small, Color: Navy
Love this dress. It’s cute and light weight and the length is perfect for me. I also love the fluttering sleeves.
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Reviewed in the United States on January 23, 2026
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A Middle-Aged Reader
Cuba, US
★★★★★ 5
Great Summer Dress
Size: X-Small, Color: White
This is such a pretty dress. I'm pretty small--a size 0 J Crew or 00 Loft--and the XS fit me with some room to flex. It's very pretty on, not see-through, and it holds its shape nicely over the course of a day. A perfect summer dress!
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