The ultimate performance package for Porsche 911 Carrera (991.2), with both increased flow and significantly lower inlet temperature!

This kit is offered at a package price and includes our charge air coolers, our high-flow Y-pipe, as well as all necessary hoses, accessories, and mounting details.

Our intercooler kit and Y-pipe are excellent products on their own, but when assembled together, they form a powerful unit that delivers lower inlet temperatures and increased flow while reducing back pressure across the system - resulting in a significant power increase!

- Lower inlet temperature under the same test conditions: XX°C , a decrease of XX°C. See diagram under the product images.
- More oxygen to your engine, less back pressure, and improved flow!
- Airflow at 0.1 bar / 1.45 psi pressure drop: XXX CFM (XXX CFM), an increase by XX%! See diagram under the product images.
- Bar&Plate cells of motorsport quality from renowned Garrett, absolutely highest quality.
- 3D free-form designed cast tanks.
- Specially designed carbon fiber air guides.
- Reduced pressure drop! See diagram below!
- Y-pipe made from 63mm mandrel bent aluminum pipes.
- Y-pipe with elegant, cast collector part.
- Y-pipe with CNC-machined (2x) 1/8 NPT connections, perfect for methanol injection or as outlets for example boost pressure sensor.
- Comes with high-quality silicone hoses and mounting accessories.

About our intercoolers:

To optimally distribute the flow over the entire core, we use casting, flow-optimized tanks. A well designed tank is essential to maximize heat transfer properties and flow. Flow and cooling capacity directly depend on the dimensions of the core and to utilize as thick a core as possible, we have replaced the upper air guides with carbon fiber guides. These are designed by do88 with 3D scanning as a basis, which guarantees an excellent fit against both the car's bodywork and our large intercoolers.

To maximize cooling, these air guides are equipped with seals against both the charge air cooler and bodywork, to ensure that the cooling air does not take the easier routes around the core. The intercooler connections are a full 70mm (2 3/4") to maximize flow and eliminate any bottlenecks in the system. This means that this kit comes with new hoses at all four positions, all designed and CFD-tested for optimal flow. The hoses at the turbocharger outlet are made of material with especially high heat resistance, rated for a constant temperature of 240°C.

About our Y-pipe:

Our do88 Y-pipe is the result of extensive design work with many hours at the CAD drawing board and several flow calculations and 3D prints. do88's Y-pipe is the solution when you are aiming for high performance goals and want to eliminate system restrictions. It provides significantly improved flow along with low weight! The Y-pipe is made from mandrel bent lightweight aluminum pipes that are welded to a 3D free-form designed, cast collector to maximize flow.

The Y-pipe is finished with an elegant powder coating that gives it a look to match its performance.

Performance:

When it comes down to performance, the do88 intercoolers significantly reduce the intake temperature! In the graph the difference towards the OEM 991 units is presented. The data is collected with an AIM race logger under 3 consecutive runs in an immediate sequence. Full throttle accelerations between 50-250 km/h (30-155 mph) in a Porsche 991.2 Carrera. No cooldown in between, just full pull.

The test was conducted in the following manner:
Firstly, 3 runs were made with the car equipped with OEM intercoolers. Stop, fast change of parts to the do88 intercoolers. Shakedown for a few minutes and then 3 runs made in the exact same way as with the OEM parts. The decrease in inlet air temperature is significant, peak delta is XX°C (XX F) see the graph!

Cooling is important, and so is airflow. After many hours of development, refining the end tanks and choosing a core to meet our demand, the result is an intercooler that is much more efficient in terms of heat transfer as well as airflow. Using our in-house Superflow SF-1020 Probench, the airflow is verified as a complete system, with hoses on both inlet and outlet, for both the OEM 991 intercoolers, and the do88 performance intercoolers.

What you see is what you get – MORE performance from do88!