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Description
XForce | 2.5" Short Round 100 Cell Metallic High-Flow Catalytic Converter | CAT09-250(100)XForce 2. 5" Short Round 100 Cell Metallic High Flow Catalytic Converter CAT09 250(100) Engineered for maximum flow in high performance applications, the XForce Short Round Metallic Catalytic Converter is the ideal solution for custom builds where space is at a premium. This compact unit features a high performance 100 cell metallic substrate, designed to offer significantly less backpressure than standard ceramic converters. The reduced cell density
XForce 2.5" Short Round 100 Cell Metallic High-Flow Catalytic Converter - CAT09-250(100)
Engineered for maximum flow in high-performance applications, the XForce Short Round Metallic Catalytic Converter is the ideal solution for custom builds where space is at a premium. This compact unit features a high-performance 100-cell metallic substrate, designed to offer significantly less backpressure than standard ceramic converters. The reduced cell density allows exhaust gases to exit more rapidly, aiding turbo spool-up and increasing overall engine efficiency. Crafted from durable 304-grade stainless steel, this "Shorty" converter is built to withstand extreme thermal stress. Its 6-inch overall length makes it perfect for tight exhaust tunnels or engine bays where a full-sized converter simply won't fit.
What's in the Box?
- 1x 2.5" Short Round 100 Cell Metallic Catalytic Converter
Features:
This product offers the following high-performance features:
- 100 Cell Metallic Substrate: Provides ultra-low restriction for maximum power output and improved throttle response.
- 304 Stainless Steel Body: High-grade material ensures maximum durability and resistance to oxidation in high-heat environments.
- Ultra-Compact Design: With a 6" overall length and a 4" x 3" body, it is one of the most space-efficient high-flow cats on the market.
- Precision Inlet/Outlet: Features 2.5" (63.5mm) openings for seamless integration into performance exhaust systems.
- High Heat Resilience: The metallic core reaches operating temperature quickly and is more resistant to physical shock than ceramic alternatives.
Specifications:
- Part Number: CAT09-250(100)
- Overall Length: 6" (152.4mm)
- Body Size: 4" Diameter x 3" Length
- Inlet/Outlet Diameter: 2.5" (63.5mm)
- Substrate Type: 100 Cell Metallic
- Material: 304 Stainless Steel
- Fitment Type: Universal Weld-On
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
- Usage Note: This product is designed for race or off-road use only. It may not comply with local emissions regulations for street-driven vehicles.
- Installation: Measure your vehicle's available space for compatibility. Professional welding and installation are required.
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| Universal | Custom Race/Off-Road Exhaust | N/A | N/A | Universal | N/A | Universal | 100 Cell High-Flow | N/A |
Warranty Information
| Product Type | Warranty Period |
|---|---|
| 304 & 201 Stainless Steel Exhaust Systems | 60 Months |
| Accessories | 12 Months |
| Catalytic Converters | 12 Months |
| Electronic Products (Including SmartBox) | 12 Months |
| Mild Steel & 409 Stainless Steel Exhaust Systems | 24 Months |
| Mild Steel Headers | 12 Months |
| Stainless Steel Headers | 24 Months |
| Universal 304 Stainless Steel Mufflers | 24 Months |
| Universal Mild Steel & 409 Stainless Steel Mufflers | 12 Months |
Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place.
I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item.
Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025
★★★★★ 3
Eaten by my Thighs
Color: 04-multicolour (4-pack), Size: X-Large
I wanted to love them. Sadly they have let me down.
Pros: natural breathable fabric , super soft and comfortable, cotton panty gussets for feminine health and panty liners will stick!! Yay:). And the colors! They are great!
But here’s the Con. And it’s the con of all cons.
THEY RIDE UP!! Eaten by my thighs. I’m 5’6” and in the general area of 175. I fluctuate depending on how many times I visit the bakery! :) I don’t have a thigh gap but it is not a super tight thigh squeeze. I seldom have thigh climb but these do. I tried two different sizes to see if that made a difference. Nope.
I was miserable at a recent theme park in these. I was wearing long heavy dresses and it was quite awkward to yank these legs down non stop.
They feel amazing and they have all the requirements
1. Soft
2. Comfortable and stretches with you
3. Breathable with nice thin fabric. Not bulky
4. Natural fibers
5. Great colors
If you are a person that is not blessed with Thunder Thighs, please order these. They are great! I wear them at home and to locations that I will not be doing a lot of walking at. I have washed them so many times and they look like new still.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool.
They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me.
They are comfortable to wear, washed and dried easily.
The material has some stretch to it, but not a lot.
Well made, no stray strings. Perfect fit for me.
Just what I was looking for.
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Reviewed in the United States on May 17, 2026