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Description
do88 Porsche 911 Turbo (991) 2013- Inlet Hoses for Turbo 51.5mm compressor housingdo88 proudly presents the worlds first high flowing turbo inlet hoses for Porsche 991. 1 991. 2 with upgrade Turbos. Developed by do88 in Sweden! Much larger overall inner diameter for improved air flow, 50% higher! (see diagram below). The hoses has 2,5" (63mm) inner diameter on the smallet location. Smooth flow transitions. Very smooth internal surface for best air flow. Excellent thermal properties, the hoses will not absorb heat from the engine.
do88 proudly presents the worlds first high flowing turbo inlet hoses for Porsche 991.1 / 991.2 with upgrade Turbos. Developed by do88 in Sweden!- Much larger overall inner diameter for improved air flow, 50% higher! (see diagram below). The hoses has 2,5" (63mm) inner diameter on the smallet location.
- Smooth flow transitions.
- Very smooth internal surface for best air flow.
- Excellent thermal properties, the hoses will not absorb heat from the engine.
- The hoses are reinforced with stainless steel wire to eliminate the risk of implosion on high outtakes.
It was a real challenge developing new turbo intake hoses for the 991 Turbo. The lack of space made it really difficult to make a set of hoses that would outflow the stock plastic pipes. We succeeded but in some smaller areas we had to compromise and letting the hose have no clearance, so they will push or rub in some non-sensitive areas.
Porsche 911 turbo. This immortal icon. The absolute essence of the motorworld´s cars, the Porsche 911, elevated by ten applied with turbo charging. Could it get any better for a car enthusiast? Rewarding through a sweeping bend, viperous in pooring rain, thrilling on full throttle, breathtaking on retardation.
Owning a Porsche implicates more than just owning a car. A Porsche is a Porsche. You find yourself travelling in the true definition of immortality, feeling ever so alive. Owning a Porsche is all about enjoying every single detail there is to it. Everything ought to be as optimized and as refined as possible. This is where do88 fit in. Our self-developed intake hoses increase air flow with 50 %. We can ensure you the sensation while driving is very different. The improvement in throttle response is immense, making the car feel so much more refined and alert. This upgrade makes it become what it should have been from the start. This is an improvement no test figures can explain, it has to be perceived behind the wheel of a 991 turbo!
VTG adapters for upgrade turbos:
The package includes everything for mounting:
2 wire-reinforced silicone hoses
2 silicone hoses
2 breather valves
2 CNC machined VTG adapters for upgrade turbos (ID 51,5mm)
Clamps and Screws
Detailed installation instructions, click here to read it!
Fits:
Porsche 991.1 & 991.2 Turbo / Turbo S with upgrade turbos
Model years: 2013-
OEM reference.
99111002371 / 99111002372
9A111004172
99111002471 / 99111002472
9A111004272
This diagram shows the turbo intake air flow at different pressure drops of do88 intake hosescompared to the OEM intake pipes:
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4.3 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
It works!
Size: 1 Count (Pack of 1)
My 2005 Jetta failed the inspection and my mechanic said (after clearing the engine light) that I should drive the car for 20 min highway and 20 local. We've tried that the whole day but out of three lights on his device only 1 went away. Next day the light engine came back. After not being happy with the explanation offered by him (a family friend) that I should keep driving it until we get lucky I went online and found CRC 05063. Followed the instruction (one bottle on full tank of gas). Before my tank was under 3/4, engine light went off!! At half tank I went and did the inspection - IT PASSED! I am really impressed!
Update August 2015!
I have been using this product for 2-3 years now and if it is not working for you please read. In July I have used the first bottle and took my 2005 Jetta for inspection. It failed. Ordered a second bottle and it failed again. My mechanic said keep driving. Did 200 miles in one day and nothing. Decided to take matters in my own hands and ordered Autel MaxiScan MS300 ($18, it allows you to read and delete codes). There were two faults - EVAP and 2nd something about Oxygen. Went online and this is the first time I heard about driving cycles. These are steps that you have to follow so that your car's computer can start measuring all the parameters needed for the test. Driving cycles are not exact science but I tried to follow the instructions as much as I could and after just 20 minutes (10min city and 10min highway) ALL the parameters were set and I passed the emission test with flying colors! So, just before you give a comment about CRC like "tried and didn't work" be aware that there are other things you have to take into account.
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Reviewed in the United States on July 1, 2013
★★★★★ 3
My car did not pass!
Size: 1 Count (Pack of 1)
My car didn't pass. However, the company CRC sent me a reimbursement check.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Pass Again
Size: 1 Count (Pack of 1)
This product never fails (no pun intended), I have been using this for the last 10 years my car has never failed a smog test. I highly recommend this and that you use it correctly. You will not be disappointed.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Really Helps-Especially for Star Station Tests-Haven’t Failed Since Using in Two Older Vehicles
Size: 1 Count (Pack of 1)
Ever since the new CA State mandate that older cars and trucks have to go to a Star Emissions Station for their smog check I have become very familiar with Guaranteed to Pass. The first year of getting smogged under the new regulations my 1995 truck barely failed. It’s a tougher series of tests and it really sucks to have to pay more for a smog test that is designed to get older cars and trucks off the road that would normally pass a regular smog check. It came at a bad time, having just been laid off and losing my health insurance and income and trying to figure how to come up with money for truck repairs to get my registration renewed so I could be a viable job candidate in the really bad job market of a few years back (and still today, may I add.) But that is a whole other issue that gets my blood boiling. So back to my experience with Guaranteed to Pass. My 1995 Ford Truck barely failed and I mean barely according to the emission numbers so I had the manifold cleaned out, used premium gas for a tank and added Guaranteed to Pass. Having two gas tanks was handy as I could switch the tank to a fresh tank without the remainder of the additive in it for the retest. It passed with flying colors.
So for our other older 1993 mini-van and the truck in the few successive years since I always run the premium gas with Guaranteed to Pass in the tanks before the smog check. We’ve had the van and truck tested 3-4 times combined since and they pass every time. So I’m sold on Guaranteed to Pass and will vouch for it.
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Reviewed in the United States on November 14, 2016
★★★★★ 5
Excellent quality
Color: Black
Fits perfectly to my bmw x3 2017 2.0L
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Reviewed in the United States on May 16, 2026