K04 Performance Upgrade Turbo Turbocharger For A4 & Volkswagen VW Passat 1.8T B5 B6 1997-2006 - Stigan 847-1435 New
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Features
- Two year, unlimited-mileage warranty. Guaranteed Exact Fit for easy installation
- Direct bolt-in replacement for the factory BorgWarner K03 unit, with larger K04 style compressor housing and wheel.
- This is NOT LEGAL for sale or use in California, Colorado, or anywhere else that requires CARB emissions certification
- Fits all US-spec 1997-2006 Audi A4 & VW Passat 1.8T. Does NOT fit VW Golf, Jetta, Beetle or Audi TT due to different mounting points. This Turbocharger is NOT CARB-approved and not legal for sale in California.
- This is a K04-style bolt-in high performance upgrade turbocharger. Please note that your results may vary depending on which supporting mods are done to your vehicle. It is HIGHLY recommended that you upgrade your fuel injectors, intercooler, and have the vehicle professionally tuned for maximum potential and reliability
Manufacturer: Stigan
Brand: STIGAN
Item Weight: 13 pounds
Product Dimensions: 13 x 10 x 10 inches
Manufacturer Part Number: 847-1435
OEM Part Number: 030TC14082000 030TC14306000, 033TC10082000 058 145 703, 058145703E 058145703EX, 703L 058145703C 058145703D, J 058 145 703J 058 145
Date First Available: March 20, 2015
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
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View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Let me start by saying this is a wonderful product. I purchased this turbo to put on my 97 Audi A4 Quattro. It shipped to my home with in 4 days. The installation Itself went very smooth, only took a few hours. This may have been because I had the whole front end off while I did a timing belt, water pump, turbo and FMIC. Even when I did my turbo install the second time it took less than 3 hours by my self. Either way this part was a direct fit and bolted up with ease. After installation the car ran great for about 300 miles and then one day I got in it and it was just not running right and smoking so I thought I blew the turbo. So I called the Stigan company talked to a representative (who was wonderful I wish I remembered her name to shout her out) with in 2 days I had a brand new turbo at my door. That same day I put the new turbo in started the car still had the same issue. I then realized I had a bad Maf swapped it out and the car ran great. In the process I realized I probably didn’t even blow the original one up. As of now I have about 600 miles on this new turbo with no issues. My car is currently running on a stock tune. The car does have a number of supporting modes though. This list includes 3” catless down pipe, Rks Diverter valve, CX front mount, a silicone turbo inlet and a few more random things. The car runs great and the boost kicks in quickly. This is a great upgrade for someone who has a worn out turbo like I did. I will add more to this review in a few months after the turbo has about 3,000 miles on it and I put my GIAC PC16 Tune on. I’ll let you know how it does after get to push it a lot more so far though a great product!!! *Update have put 10,000miles on this thing and it’s still boosting no issues. About 1000 miles ago I added my pc16 tune and clutch upgrade I’m hitting 18psi before 3k you really feel the pull in the car now **** Update part 2 I’m at 20,000 miles now with the tuned set up of me just BEATING on this thing and I’m still boosting great
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Reviewed in the United States on February 26, 2020 by Ethan K. Ethan K.
Great price for a great turbo! Installed this as the base to my slight build of my 1.8t in my passat and to fix the chattering Wastegate from the worn out ko3. Install was super easy if you are mechanically inclined. Took me about 4 hours with the help of a friend. Make sure to get about 4 extra crush washers. The coolant return line from the turbo bolts to the block, it's easier to remove the banjo bolt from the block and take of hose off with the turbo instead of trying to take the banjo bolt off at the turbo as there is a small bolt that holds that banjo bolt on and is inaccesible with the turbo on the car you will see what I mean when you do it. Overall this turbo is great, spools fast, sounds mean (I have a silicone turbo inlet pipe and cone filter with heat shield) and makes full boost (8psi) on a stock ko3 program. So YES you can swap this turbo in and run it on a stock tune but a k04 tune and supporting mods would be way better. Only problem I'm having is I think my catalytic converter is restricting the exhaust flow (it's partially melted or clogged or something) and putting my ecu into limp mode. I'm only making 5psi and the ecu is requesting more boost than it's actually getting. I'll report back once I find the problem. Edit: after replacing the hoses to the N75 valve and backing off the tension of my diverter valve spring, along with a host of other tests, the problem has been solved! This turbo now spikes at about 10-12psi then drops to about 8-9psi and holds steady all the way to redline! Love this little turbo
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Reviewed in the United States on October 6, 2018 by RJ
I purchased this turbo and within a couple of hours, a 5% discount was offered from the seller for the listed K04 turbo. They refused to give me the 5% discount after I had purchases only a couple of hours earlier. We're talking $15.XX or so, but it is the principle of the situation. Now, I am just going to return the turbo and buy again at the discounted price, which is going to cost them way more than $15.XX and ding their returns. This is not an effective way to operate, Stigan. I buy turbos dozens of times a month for various projects. This is our first interaction with Stigan, and will most likely be the last, unless they choose to make it right.
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Reviewed in the United States on August 31, 2024 by TheOneAndOnly
Liked how this fit right in
Reviewed in the United States on September 23, 2022 by Humberto garcia
I have been warned not to purchase and install an aftermarket turbo and I payed that price buying a k04-015 turbo off eBay, made by Rev9. The cartridge blew out within' two days. Screwed up my MAF sensor, shot oil through my new FMIC and torched my up/downstream o2 sensors. Not to mention wasting $100 on synthetic oil and G12 coolant. I am an ASE certified mechanic and I know what I'm doing. With today's economy, I couldn't afford to spend over $1k on the stock replacement, nor a more expensive route. APR, ECStuning, etc etc... So, I took a chance on this model. The kit has the thicker, premium gaskets and a set of exhaust studs that work well. A set of high quality vacuum lines and a oil pre filler that I kept for future use. So far, this has been a great replacement. The only issue with this kit; should come with new crush washers (at least an assortment) to swap oil feed and coolant feed adapter ports. Instead, paper gaskets "ghetto washers", I call them. They are very hard to find locally. I pulled a decent set from an LKQ turbo which worked out well. The kit comes with pre-ignition steps to ensure the turbo is properly lubricated and has a steady oil feed to prevent premature cartridge failure. All and all, so far, I'm very pleased with this product and manufacturer. Spooling 20 psi under 3k Rpms. Who doesn't appreciate that!? My ride: 2001 VW Passat 1.8t AWM. 386cc 2 1/2" FMIC 4bar FPR (adjustable) Forge Splitter RBV Giac Stage 2+ .... bunch of other crap
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Reviewed in the United States on March 13, 2017 by Sue Duvall