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Description
High-Efficiency Three Way Catalytic Converter for Gasoline Vehicles for Gasoline Vehicles 85mmHigh Efficiency Three Way Catalytic Converter for Gasoline Vehicles Optimize Exhaust Performance & Reduce Emissions Product Attributes 1. Product name: Ceramic catalytic core for gasoline vehicles 2. Size: diameter: 85mm, height as picture 3. Cpsi: 400 600cpsi 4. Material: ceramic 5. Product delivery includes: 1pcs ceramic catalyst + 1pcs insulation cotton NoteDue to increased emissions standards, these items are not certified for sale in California,
High-Efficiency Three Way Catalytic Converter for Gasoline Vehicles - Optimize Exhaust Performance & Reduce Emissions
Product Attributes
1. Product name: Ceramic catalytic core for gasoline vehicles
2. Size: diameter: 85mm, height as picture
3. Cpsi: 400/600cpsi
4. Material: ceramic
5. Product delivery includes: 1pcs ceramic catalyst + 1pcs insulation cotton
Note：Due to increased emissions standards, these items are not certified for sale in California, New York, Maine and Colorado.If your vehicle is registered in California, New York, Maine or Colorado , these items can not work on your vehicle. Please check your registration states before you buy.
Purchasing notice
1. If you need a large batch, please contact our customer service
2. Powerful merchants, support customization, need to contact us
3. Allow us to have an error of ±1mm,It will not affect normal us
4.Please replace the catalyst of the original size and do not modify it
5.Friend of modified cars, it is recommended to contact us separately, you need to provide relevant data such as modified horsepower, only accurate data can be more suitable for your products
If you don't know how to choose the size, or need other sizes, please contact us
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How Catalysts Work
Core chemical equations：
1. 2CO + O₂ → 2CO₂
2. 2C₃H₆ + 9O₂ → 6CO₂ + 6H₂O
3. 2NO + 2CO → N₂ + 2CO₂
Essential conditions for efficient operation
1. Temperature requirements:
Ignition temperature: About 300°C is required to start the reaction.
The vehicle shortens the warm-up time through a close-coupled design (close to the engine).
2. Fuel quality:
Leaded fuel will cause the catalyst to "poison" and fail, and unleaded gasoline must be used.
3. Engine health:
Misfires, burning oil and other problems will accelerate the clogging or sintering of the catalyst
When do you need a catalytic converter?
-
Increased fuel consumption : The three-way catalytic converter is damaged , which
directly causes high fuel consumption and reduced power. -
The exhaust gas is not up to standard : Noise, polluting the environment, annualinspection can not pass, if it is a car with a trip computer (ECU), damage will cause the oxygensensor to fail, may lead to fuel supply failure.
-
The engine shake fault light is on : lf the failure of the three-way catalytic convertercauses the exhaust emissions to exceed the standard, the engine control system with OBD willlight up the emission fault light.
-
Decreased power : The common failure of the three-way catalytic converter is blockageand functional failure, if the blockage will cause poor exhaust and lead to insufficient power.
- Poor exhaust and odor : Acungent, smelly odor can be smelled during idle andacceleration, and exh aust gas analysis will find that the Danyang compound (NOx) seriouslyexceeds the standard, and it should be cleaned up and repaired in time.
How to choose a catalyst
| Model | Purchase according to the emission standard of the vehicle model to be installed (Euro3/4/5/6). The purchase selection standard can be increased, but not lowered. |
| Size recommendations | The ratio of engine displacement to catalyst liters is 1.5:1 (Note that if there is an original catalyst size, please choose the original size and do not reduce the catalyst size to save costs) |
| Function | Please select the catalyst according to the purpose of using the catalyst (to avoid purchasing errors) |
| Cpsi | 400/600cpsi，The catalytic effect of 600cpsi is higher than that of 400cpsi |
| Insulation cotton | Its main function is to improve the installation gap and heat insulation function. (Usually 5mm thickness is the best. If the catalyst diameter is smaller, you can choose thicker insulation cotton to supplement it.) |
Application scenario diagram
| Options | Product Group Links | Installation display |
|---|---|---|
| Ceramic core | Link | |
| Ceramic core + shell | Link | |
| Ceramic core + shell + caliber | Link |
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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
4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Lightweight bur actually hydrating
Style: 3.38 Fl Oz (Non SPF), Style: 3.38 Fl Oz (Non SPF)
I’ve tried so many moisturizers that either felt greasy, heavy, or just sat on top of my skin, but this La Roche-Posay moisturizer honestly surprised me. It’s super lightweight, absorbs quickly, and leaves my skin feeling soft and hydrated without feeling oily. My face feels smooth and refreshed after using it instead of sticky or coated. It layers really well and doesn’t make my skin feel overloaded. Definitely one of the best moisturizers I’ve used so far.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Quietly effective leave-on exfoliant that smooths pores
Size: 1 Fl Oz
I bought this to tackle clogged pores and the occasional blackhead and to even out my skin without scrubbing harshly. I wanted a gentle option I could use daily without irritation, especially on the more sensitive areas around the nose and cheeks.
In everyday use, I cleanse, pat dry, then apply a few drops and let it sink in. It dries down quickly, leaves no fragrance, and doesn’t feel sticky or harsh. It’s a liquid leave-on with 2% salicylic acid that helps unclog pores while smoothing dead skin, and I can follow with moisturizer and sunscreen without any trouble.
What stood out the most is how it clears inside the pore and smooths texture over time. After several weeks I notice my skin looks more even and the fine lines around my eyes and mouth appear a touch softer. It feels hydrating while still doing the exfoliating job, which is nice to experience without extra dryness.
A small note: there can be a brief, mild tingling if my skin is dry or I use too much at once, so I started with a smaller amount and every other day for a week. Sunscreen is still important during the day. Overall, it fits my routine well and I would rate it five stars.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Amazing exfoliating toner
Size: 4 Fl Oz
I am almost 40 and have had acne since puberty. I have tried so many products. The products that showed some improvement (like Proactiv) changed the texture of my face. Literally made my face feel like a basketball. I’ve tried some products that I’ll notice an improvement after a week or so, and the it would just stop working. I have never used something that so drastically helped my face in such a short amount of time. Notably, within 5 days my blemishes were almost gone. Within a week, my chin felt smooth instead of feeling the bumps of every clogged pore. The discoloration of my face, such as the redness, hasn’t totally disappeared, but it is improving. My face doesn’t feel oily throughout the day. My skin feels tighter, like I got a facelift. Moisturizer along with this product is important. And it is important to follow the directions and start slowly with this product. Use it every other day for the first week, gradually working your way up to daily and then twice a day. It is a shock to your skin and can dry it out if you go overboard. But for what I needed this product for, it has exceeded my expectations in every way. I couldn’t recommend it more. Just a heads up, it is applied like a toner. I expected a face wash, but it is a liquid that you apply to cotton and rub on your face. I wash with CeraVe SA cleanser, follow it with this, and apply whatever moisturizer you prefer—I’ve been using moisturizer with SPF so as to not damage my skin more than I already have.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
If you actually understand how to use it, it's amazing.
Size: 4 Fl Oz
My skin type:
- Very Dry, easily dehydrated
- Oily nose
- Prone to stubborn acne and closed comedones
- Redness on chin and cheeks (not rosacea)
I already use a nightly Tretinoin cream (.04% concentration) to help with my acne and premature signs of aging but decided with my derm that incorporating a BHA would be a good idea to help with my seriously stubborn closed comedones and some irritating textural issues. It was between this and the Cerave SA lotion and I ultimately decided on this due to the higher concentration of salicylic acid.
It's moisturizing, and feels sticky for the first 5-10 minutes after application but seems to sinks in to something of a satin finish on me and I can no longer feel it on my skin. You just have to be a little patient. My skin feels well hydrated and plump after it settles and looks really smooth and my pores aren't as obvious. It sits just fine under makeup for me but I'm not a new user to chemical exfoliants so I don't have lots of dead skin pilling up or sloughing off when I use it, my skin is, for the most part, already very smooth outside the acne and CCs. Occasionally I'll apply it further down my neck/decolletage than usual and WOW do I old skin just ball up and peel right away - it's so gross but also satisfying. So those that don't exfoliate often or are new to BHA/AHAs will likely have issues with foundation until their skin adjusts (but it will adjust). My advice in those cases is to either use this at night for the first few weeks or just accept going barefaced for a little while if you can.
I'd strongly suggest not applying this product over anything that you feel does not dry down fully, the times I've attempted to use it after serums or heavier products it takes forever to sink in and sometimes never fully does. I save all my serums and essences for after this has absorbed and it's far easier to work with it as a result. My steps go like this most days: ACWell Licorice toner --- PC 2% BHA --- 10% Niacinamide serum --- TO Matryxil serum --- Secret Key Black Snail cream or Syn-ake cream w/ 3 drops Stratia Fortify oil --- Sunscreen.
It works fairly quickly IMO, on my neck where I typically don't apply my Tret at night I noticed the peeling and balling of dead skin on day one and on my face where I have a patch of really awful CCs I noticed them getting smaller and smoother by around day 3-4. I'm going on about 8 days now and they're barely visible unless I'm right up in the mirror and feel as if they're almost gone when I touch my fingers to that area. I do have some slight peeling of the skin around my mouth and nose but it's not terrible (likely because I already exfoliate the heck out of my skin with the tret).
Some tips and things keep in mind:
1)
DO NOT RINSE IT OFF. I don't understand some of the top reviews advising people to do that, it says on the bottle not to rinse and nearly all chemical exfoliators are meant to be left on until the next cleansing specifically so they can do their job. If you rinse it off you're either going to prevent it from properly exfoliating or end up irritating the hell out of your skin. If you have oily skin and feel this might be heavy on you than you can probably just use this on bare skin and then sunscreen if you use in the AM or a lightweight lotion/cream and be done with it, but you need to leave it on your skin.
2)
You have got to use sunscreen while you're using this product! Any BHA or AHA exfoliant causes increased sun sensitivity and you have to address that in your routine. You should already use sunscreen daily but it becomes a must when you incorporate a chemical exfoliator or you risk sun damage.
3)
Less is more! Don't slop this on your face or soak a cotton pad in it, a little goes a long way and you'll be kicking yourself if you apply way too much and have to wait 20+ minutes for it to sink in. Use a shake or two and add more if needed but go easy.
4)
Expect some irritation initially. Chemical exfoliants can be harsh and rough even on sturdy skin and you have to give yourself time to adjust. Over-exfoliation is a possibility but sometimes just introducing a BHA or AHA into your routine can cause some sensitivity. Don't panic and just be gentle to your skin. Use ceramides (like Cerave Skin Renewing cream) or fatty oils to soothe your face if needed and try to stay away from any harsh products or acids like Vitamin C right after applying this to avoid really burning your face.
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Reviewed in the United States on January 9, 2020
★★★★★ 4
Good, but cheap and messy dispersal of product
Size: 4 Fl Oz
This stuff works great. However, the packaging is not. It is messy and you lose product whenever you dispense it. For the price, I don’t want to waste a drop, but product ends up around the top and it makes this messy. Will I continue to purchase? Yes. But only because I have tried other BHAs and they seem a bit harsher on my very delicate skin. I am in the process of trying other brands that have better packaging and once I do, I will not replace. Already, I have found a budget vitamin C that has the same percentage of actives as PC- and a much, much better dispenser. PC sold out a while ago and the brand has just not been impressing me lately. Still, this BHA works well, is non irritating on my fair, delicate, over 50 skin. I just wish the bottle had a stopper that helped it dispense the product in a more controlled manner.
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Reviewed in the United States on May 1, 2026