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Description
CTS Turbo K04-X Hybrid Turbocharger Upgrade | Audi B7/B8 Audi A4,A5, Allroad, Q5 2.0TCTS Turbo is proud to announce an official release of our new HYBRID K04 X Turbo Upgrade for 2. 0T FSI TSI Longitudinal Engines. Our engineers designed the compressor cover to accept a larger billet compressor wheel and exhaust housing to work with the clipped K04 turbine wheel, exactly how intended. While other manufacturers simply install a larger CHRA into a small factory spec housing. High quality castings are CNC machined to replace your factory
CTS Turbo is proud to announce an official release of our new HYBRID K04-X Turbo Upgrade for 2.0T FSI/TSI Longitudinal Engines.
Our engineers designed the compressor cover to accept a larger billet compressor wheel and exhaust housing to work with the clipped K04 turbine wheel, exactly how intended. While other manufacturers simply install a larger CHRA into a small factory-spec housing.
High-quality castings are CNC machined to replace your factory turbocharger and do not require any additional parts to be installed aside from supporting mods.
Due to the high-performance nature of the K04-X Hybrid 2.0T FSI/TSI Transverse Turbocharger Upgrade, supporting mods are required as per list below! We do not recommend using this turbo with factory exhaust and intercooler systems.
This kit is by far the best Hybrid K04 turbo available for Audi enthusiasts with the 2.0T FSI and 2.0T TSI longitudinal engines. With proper tuning and supporting mods, this turbo will support 400HP.
Features:
- CTS-spec HYBRID K04 CHRA with heavy-duty thrust bearings
- Larger billet compressor wheel (MFS – machined from solid)
- Clipped K04 turbine wheel
- K04-X specific compressor and turbine housing. Not a reworked factory housing!
- OEM+ manufacturing tolerances
- VSR high-speed balanced
- Direct-fit factory replacement
- OEM installation kit included
- Compatible with any HYBRID K04-specific tune
Fitment:
- 2006 – 2009 Audi A4 2.0T
- 2009 – 2016 Audi A4 2.0T
- 2009 – 2016 Audi A5 2.0T
- 2009 – 2016 Audi AllRoad 2.0T
- 2009 – 2017 Audi Q5 2.0T
ROW vehicles, please confirm fitment with your CTS Turbo dealer.
Additional parts required:
- Hybrid K04 specific software tuning
- CTS Turbo or other performance high flow cat and downpipe
- CTS Turbo or other performance intake
- CTS Turbo or other performance intercooler
- B7 A4 requires upgraded HPFP and fuel injectors
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
4.0 ★★★★★
Based on 1760 reviews
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Product Reviews
★★★★★ 5
Completed by myself but 2 is faster
Color: Classic Cherry, Size: L:29.80" x W:12.99" x H:71.26", Color: Classic Cherry, Size: L:29.80" x W:12.99" x H:71.26"
This bookshelf was the closest to what I was looking for. My current bedroom theme is sort of a cross between medieval castle/Hogwarts mixed with Disney and anime. The bookshelf has the “fancy library” feel that I was going for and the nice rich color of the brown goes so well with the grey stone background of the wall. I would love to order a second one but my room isn’t big enough. The top half I use for the small handful of my favorite books “since I have a lot of books in storage” and the lower half of the shelf, behind the doors, was supposed to be for movies but I decided to store my video games there instead. There’s also plenty of room at the edge of the shelves in front of the books for small knickknacks.
The shelf is decent in sturdiness and weight and the wood is typical particles but still pretty thick. The cardboard backing was also easy to hammer on.
However, I do have a couple of complaints during assembly.
1) The cupboard doors need to be held exactly where you want them and either you need to have something hold them in place, or else have a second person hold them in place for you. Otherwise one door will scrape against the top or bottom edge of the frame, or there will be a weird gap between the doors when closed. Also, the back of the door handles have two little pegs sticking out and the cupboard doors have a little hole where the pegs should go. However, the holes are not aligned and the first time I attached the handles, one handle ended up being higher than the other. After a while, I had the idea of removing the handles and switching the doors. Once I did that, the handles were aligned correctly. But neither door or handle is marked, so there’s no way of knowing the handles won’t line up until you try putting the handles on. Bit annoying.
2) One of the final steps is to attach the trim to the individual shelves. If you look at the front of each of the two top shelves in my pictures, you will notice the thickness of the front edge. That is actually a separate piece of wood that needs to be attached. However, there are no holes to put the screws through. Instead there is a narrow opening that runs along the entire length like a thin trench. The screw goes through the opening until it reaches the bottom and then goes through the wood. Once they are attached, you can wedge the shelves into the bookshelf. However, if it turns out that the trim is uneven and there is an annoying gap on one side (which there more than likely will be) you CAN NOT unscrew it, readjust it, and screw it on again. That will split the wood. It happened to me with both trims. Now both trims tilt downward a tiny bit.
Other than those two issues, this shelf is great. I managed to assemble it myself but it took me nearly 3 hours and I was assembling it in a narrow hallway. Definitely would have been faster if I had help and more space to work but was still doable alone. Despite the setbacks, I still give this 5 stars. Mostly for aesthetics, sturdiness, depth of the shelves, and the ability to assemble it alone.
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Reviewed in the United States on July 15, 2021
★★★★★ 5
Absolutely love it?
Color: Classic Cherry, Size: L:29.80" x W:12.99" x H:71.26", Color: Classic Cherry, Size: L:29.80" x W:12.99" x H:71.26"
Five-Star Review: Sauder Heritage Hill Library with Doors/Book Shelf
I am genuinely impressed with this Sauder Heritage Hill Library. It combines classic style with practical storage, making it a standout addition to any living room or home office.
Timeless Design:** The Classic Cherry finish exudes warmth and traditional charm. The molding, paneling, and overall silhouette instantly elevate the room’s decor, pairing well with both antique and contemporary furnishings.
Generous Storage:** With a full bookcase on top and two doors below, there’s ample space for books, decorative accents, and office essentials. The combination of open shelving and enclosed storage helps keep the area tidy while still displaying favorite items.
Perfect Dimensions:** Measuring L: 29.80" x W: 12.99" x H: 71.26", it fits nicely in a variety of spaces—from compact living rooms to home offices. It doesn’t overwhelm a room and still provides substantial storage.
Solid Construction:** The piece feels sturdy and well-made. The materials and craftsmanship reflect Sauder’s reputation for durability, giving me confidence it will endure daily use for years.
Easy Assembly:** While any bookshelf can be a bit of a project, the assembly process was straightforward with clear instructions. The hardware and fittings lined up as expected, and it came together without issue.
Versatile Styling:** The neutral cherry finish blends with a range of color schemes—from rich burgundies and creams to soft grays and blues. It’s easy to accessorize with framed photos, lamps, and keepsakes.
Practical Features:** The doors on the bottom are great for concealing clutter, while the open shelves top show off favorites. The overall footprint is efficient for maximizing storage without sacrificing style.
Value:** Given the blend of classic aesthetics, functional shelving, and robust build, this is excellent value for money in its category.
If you’re looking for a stylish, durable, and versatile library with doors that adds character and organized storage to your space, the Sauder Heritage Hill Library is a superb choice. Five stars from me. Highly recommended!
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Reviewed in the United States on October 11, 2025
★★★★★ 4
Nice Looking Bookshelf... Lots of Work to Assemble
Color: Classic Cherry, Size: L:29.80" x W:13.09" x H:71.26"
I specifically bought this bookshelf because I already have the Heritage Hill desk and lateral file cabinet, so natually this is the one I wanted to add to my office.
LOOKS: This shelving unit has the same look as the other pieces to the Heritage Hill collection, so it fits in perfectly to the look of my office.
STURDINESS: I'm not a big fan of the side panels because are not one continuous piece. It definitely is not very sturdy while you are trying to assemble it (more on that later) but once it is fully assembled and secured to the wall it seems very sturdy. I do not anticipate any issues.
STABILITY: A wall anchoring bracket was included with the product, so when it's properly attached to a wall there will be no concerns over stability. They did not include a drywall anchor with the bracket, so unless you plan to screw this directly into a stud, you definitely need to have a drywall anchor on hand to use.
ASSEMBLY: This is where it gets a little frustrating. I am no stranger to assembling pieces of furniture from kits like this. I understand why they have chosen to use the hidden screws and L-brackets everywhere, but it does add time on to the assembly. It probably took me about 90 minutes to assemble this product.
The trim pieces that go on to the front of the shelves (around the sides, top, bottom, and fixed shelf) make the shelf look like a higher quality product, and the L-brackets you use to attach them have oval-shaped holes so that you can adjust the positioning of each piece of trim to make everything line up right. You can adjust the positioning so that you don't see any of the unfinished wood or have ugly gaps.
Or so I thought! This trick worked fine for everything except the 3 adjustable shelves which also have a trim piece that go on the front, but for the life of me I could not get everything to line up properly. I read this in other reviews so I was prepared to do some troubleshooting and adjusting, but I could not get it to look right, so I just left these pieces off. You really don't need them. It makes the shelves easier to more around and it still looks great. The directions offer some "hints" on what to fix. There was a 1/4" gap between the edge of the shelf trim and the edge of the trim going down the side of the shelf. So the directions tell you to adjust the side pieces of trim to close the gap. Well the problem with doing that is after you adjust the side trim then the other edge of it no longer lines up properly with the edges of the trim piece of the fixed shelf.
Another tip: You don't have to leave the thing laying on its back the whole time you are trying to screw in the hidden screws or the L-brackets. You can carefully rotate it onto each of its sides to complete the installation of all the trim pieces, and it actually makes it easier to make sure they are lined up properly to each other the first time. I was just careful doing this because it's not very sturdy while it's being constructed.
They also include a touch-up marker in the package as well that really is the same color as the wood finish. I had a couple pieces that had minor scratches on them, probably from shipping. I had great luck with the marker by just coloring in all the scratches and then rubbing all around it with my finger. One larger spot needed this done about 3 times, but when I had finished, I really couldn't tell it was ever scratched, especially at the "normal viewing distance" I would normally see it from.
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Reviewed in the United States on June 22, 2020
★★★★★ 5
Best DIY Bookshelf We've Gotten
Color: Classic Cherry, Size: L:29.80" x W:13.09" x H:71.26"
Just finished putting this together and we're fully impressed.
The product itself is exactly what it says on the tin, looks just like the photos. It takes a little bit of extra effort from your standard DIY bookshelf just because it has some extra decorative pieces, but we think it's worth it and that's one of the reasons we picked it out. Did have a MINOR bit of confusion since some of the decorative pieces weren't labeled, but they were easy to identify with the instruction manual.
Which, let me just say, this is clearly a company who has seen the problems in the DIY furniture industry and has actually taken HUGE strides to make the whole experience easier on the customer and make the product sturdier. There are no bamboo pegs that might not even fit into their assigned holes, no weird turn-to-lock things that may are may not be tight enough to not unlock themselves, no ten different pieces of tiny hardware that barely look different from each other, and NO ALLEN WRENCHES.
The entire piece can be put together with a regular screwdriver and a hammer (or just the screwdriver if you can't find the hammer and are determined enough, since you only need the hammer to tack on the cardboard backing); and because the structure's entirely put together with screws and because it's actually separated into two pieces, it makes the entire structure way more stable than your standard DIY bookshelf.
The instruction manual is also not only EXCEEDINGLY, PAINSTAKINGLY clear about which way each piece should be facing and what hole you should be screwing it into, spelling it out for you when they can't just point it out on the diagram, or sometimes even doing both; it also comes with a little pre-measured spacer that you can cut right out of it to help you center the moldings on the shelves just right.
And just as the icing on the cake, they also include a marker in the color of the laminate to fill in accidental scratches.
We are extremely happy with this bookcase, and we'll be looking at Sauder products for future DIY furniture needs.
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Reviewed in the United States on January 8, 2017
★★★★★ 1
To be fair this is the worst side the other side is about an eighth of ...
Color: Classic Cherry, Size: L:29.80" x W:13.09" x H:71.26", Color: Classic Cherry, Size: L:29.80" x W:13.09" x H:71.26"
I used to work at big box store some twenty years ago and there were two selling points for Sauder furniture at the time. The furniture was 3/4 inch particle board and ease of construction. Well neither of those are the case any longer. I am putting this together and the L brackets that Sauder provides are of the adjustable variety. This lets one slide the two wooden pieces so to obtain a match on their edges. Well in theory, in reality one cannot slide them far enough so one has a 1/4 inch mismatched edge. On part H which is a horizontal trim piece. It is not long enough to cover the trim pieces edges that are below it in the vertical. Those edges are raw wood, but do not worry Sauder has been kind enough to include a brown magic marker so I will be able to cover up that raw wood. I included a photo of one side. To be fair this is the worst side the other side is about an eighth of an inch. And to be even more fair, there should not be any raw wood showing. It is not very sturdy either, the only thing that makes it from really wobbling is the fiber board backing at the rear of the bookcase. My expectations when I bought this piece of furniture was not that great. I wanted to buy a piece of furniture that was fairly easy to put together. I also wanted a piece of furniture that looked okay. This piece of furniture achieved neither one, I would have been better off going to a second hand furniture store and buying a bookcase there. Even if I had to refinish the second hand bookcase it would of been less hassle then this thing. Oh, Sauder I do not want to see a response saying please contact us at 1-800 whatever. When do most people put this furniture together? I would hazard to guess the weekend. When is Sauder customer service open? I can tell you it is not the weekend. If you are thinking of buying this, I would think twice.
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Reviewed in the United States on February 4, 2017
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