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Description
Catalytic Converter for 1995-1998 Nissan Maxima 3.0L MagnaFlow 27503Overview: Keep the check engine light off with MagnaFlow HM Grade Federal EPA Compliant Direct Fit Catalytic Converter 27503. With features including free flowing mandrel bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state of the art metrology department uses the latest 3D scanning systems during research and
Overview:
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 27503. With features including free-flowing mandrel-bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency.
Designed to fit the 1995-1998 Nissan Maxima and 1996-1999 Infiniti I30, this direct-fit catalytic converter also interchanges with OE parts 14012-41U21 and 14012-55U00. Avoid potential exhaust leaks by using the included gaskets to get a proper seal.
Note : Not For Sale in California
| Brand | Interchange Part Number |
|---|---|
| Infiniti | 14012-41U21 |
| Nissan | 14012-41U21 |
| Infiniti | 14012-55U00 |
| Infiniti | 1401241U21 |
| Nissan | 1401241U21 |
| Infiniti | 1401255U00 |
| Infiniti | 14012-41U21 |
| Nissan | 14012-41U21 |
| Infiniti | 14012-55U00 |
| Infiniti | 1401241U21 |
| Nissan | 1401241U21 |
| Infiniti | 1401255U00 |
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1996 - 1999 | Infiniti | I30 | 3L/V6 | |
| 1995 - 1998 | Nissan | Maxima | 3L/V6 |
Specs:
| Body Material | Stainless Steel |
|---|---|
| Overall Length (In.) | 44.75 |
| Substrate Material | Ceramic |
| Air Tube Adaptable | No |
| Converter Quantity | 2 |
| Inlet Attachment | Bolt-On |
| Main Piping Diameter | 2 |
| Oxygen Sensor Location | Pre Converter |
| Material | Stainless Steel |
| Finish | Stainless Steel |
| Series | HM Grade |
| Subtitle | Federal / EPA Compliant |
| Title | HM Grade Direct-Fit |
| Type | Direct-Fit |
| Mounting Hardware Included | Yes |
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 26 reviews
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Product Reviews
★★★★★ 5
Probably the best
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I'm not a super meat head muscle workout guy, but I went from being very active about my nutrition and macros and then had an accident which left me disabled so my needs changed. This fits different needs, but is still really really exceptional.
If you're a gym rat just looking for *only* plain old bulk protein to take after workouts, or you reeeeeeallly take a lot of it, honestly I'd get a big giant tub of bulk powder from like muscle milk or optimum nutrition. The price is just too good to ignore, & plus you can add another scoop or two to double or triple the protein. You can't really beat it, other than taste.
Speaking of taste, whether it's a pre-mix or powders, I've never, ever ever ever tasted a protein shake that tasted as good as this chocolate one. Dozens & dozens of brands over the decades, & the only one that comes close was the OG Muscle Milk recipe in the old tetra packs from like 15-20 years ago, before they were bought by Gatorade or whoever. This has NO right tasting as good as it does, with as little sugar, calories, & fat. PLUS having artificial sweeteners like stevia & sucralose. One reason I despise pre-made shakes, zero calorie & low sugar drinks is because I have a very strong detection of artificial sweeteners, but I can barely tell these are there. On top of that, 42 grams of protein in 14floz? I don't know what magic Fairlife did, but it's incredible.
One thing I will say though, is if you're taking a protein drink for pretty much anything other than supplemental protein replacement, this doesn't offer too much else. The "vitamins & minerals" aren't too impressive, and though a high protein drink can make you feel full or satiated, calories & fat are important too. As stereotyped it is, something like Ensure has a really good blend of calories, fat, sugar, and a lot of vitamins. There is a reason it's used all over hospitals & nursing homes. Plus the Ensure "Plus" & "Complete" have 16g & 30g protein each, respectively. They don't taste as good as the Fairlife does, but they're actually not too bad, since they use actual sugar. However, those really are meant for convalescing & true meal replacement, not bulking & training.
The only other downside is price really, at $40-45 for a 12 pack, these aren't cheap. However, when compared to a good alternative like optimum gold at about $25 for a 12 pack, you're getting almost double the protein in each drink from 24 to 42, and they're 14oz instead of 11oz, so you're getting 168oz compared to 132oz, which is like getting 3 more drinks worth. It's still a bit costly per bottle, as an Optimum Nutrition/Pure Protein/Premier Protein 11oz pre-made at $25 a 12pk will be a little over $2 each, & the Fairlife 12pk @ $45 is about $3.75 each. Still cheaper than if you went to pick one up at the gym or a gas station or something, a single would probably be $5-7, so there's value there in bulk. If it's worth it to you, that's up to your wallet.
Another plus is they are SNAP/EBT eligible, so that's a massive W.
If you take loads & loads & loads of protein every single day, and lugging a shaker with powder around isn't a problem, bulk powder is gonna be a LOT cheaper. However, if you only drink one every couple days, and don't want to deal with the blender/shaker hassle, and most importantly want the best tasting shake, this is it. This stuff is awesome, & I'll 1000% be trying the vanilla and strawberry as well. The chocolate is an easy 5 and worth trying.
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Reviewed in the United States on April 13, 2025
★★★★★ 5
Yummy taste!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12), Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I’ve been using the Core Power Elite protein shakes and they’ve honestly become a go-to. The taste is super smooth and not chalky at all—more like chocolate milk than a typical protein drink. Each bottle packs 42g of protein, which is perfect after a workout or when I need something quick and filling.
I also love that it’s lactose-free and easy on my stomach. Great for busy days, gym recovery, or hitting protein goals without overthinking it. Definitely keeping these stocked
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Reviewed in the United States on April 24, 2026
★★★★★ 5
The Best Protein Drink I've Ever Had!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
These are hands down my favorite protein shakes. I’ve tried quite a few different brands over the years, but I honestly don’t drink any other protein drinks now besides these. The chocolate flavor is absolutely delicious and tastes much better than most protein shakes I’ve had.
They’re smooth, not chalky whatsoever like other protein drinks, and have a great balance of sweetness without tasting artificial. The high protein content is also a huge plus for post-workout recovery or a quick meal on busy days. I always keep these stocked in my fridge and restock every other week!
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Reviewed in the United States on May 28, 2026
★★★★★ 5
No chalky aftertaste
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
Been buying this product for years. Good amount of protein for pre/post workout. A little pricey but worth it.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Delicious!
Flavor Name: Chocolate, Size: 14 Fl Oz (Pack of 12)
I’ve tried a lot of protein shakes and this one is hands down my favorite choice. It tastes like a delicious glass of chocolate milk, without being overly sweet the way some other protein drinks are, and the texture is perfect - neither chalky nor too thick. Some folks don’t like the sugar in the ingredients list but for me, 42g of protein in 230kcal is a godsend for meeting my daily macros. And it’s lactose free so zero issues with digestion. I use a little in my morning coffee as a coffee creamer and drink the rest with breakfast - a great and easy way to start my day with a good amount of protein.
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Reviewed in the United States on March 30, 2026