
We are proud to present our newly developed Plenum for the Porsche 9971 Turbos
With this extreme high flow Plenum the performance of your 997 generation 1 will increase
Available for OEM 74mm and GT3 82mm throttle body
do88 plenum is Yshaped for improved air flow Our plenum flows 34 better for GT3 throttle body and 18 better for OEM throttle body compared with the OEM plenum see diagram below
High quality casting pipe with CNCmachined connections
Smooth internal surface for best air flow
Comes with all necessary accessories for installation
The OEM 997 Turbo plenum is Tshaped which means the air flow from the throttle body abruptly change direction when its divided to each side of the intake manifolds It makes sense to design a plenum with a Yshape instead of a Òbank into the wallÓ Tshape
During the development process of this plenum we spent a lot of time with flow simulations of the internal Yshape design We made both flow simulations on our CAD system and real tests on our own SuperFlow SF1020 flow bench on 3Dprinted models
The results of the final design were very impressive the do88 Plenum totally outperform the OEM Plenum by 34 increased flow at the same pressure drop
To be able to manufacture this final design we choose to make a 3D freeform designed casting This construction adds a lot of performance but not so much of extra weight We designed the outside of the plenum to add as little weight as possible to the plenum
do88 Performance Plenum weight 080 kg 176 lb OEM plastic pipe weight 028kg 062 lb and competitor cast performance pipe weight 119kg 263 lb
Our Performance plenum is a great upgrade both with the OEM 74mm throttle body or the more extreme 82mm GT3 version
The do88 Performance Plenum is a bolt on with the 82mm OEM Porsche 997 GT3 throttle body
But you can also purchase our Plenum together with a CNCmachined adaptor plate which allows you to install it with the 74mm OEM Porsche 9971 Turbo throttle body
Be aware of that the OEM parts was designed for the power level the car was built for originally A power increase may cause your stock plenum to hold back the power of your engine So even on an engine with a software tune the do88 performance plenum will give a performance increase
do88 performance plenum comes as a complete package with all parts necessary for installation
When you order this kit there is one choice that must be made |
Fits |
Porsche 9971 Turbo Year models 20072009 |
OEM reference | 99711021570 99711017771 |
This diagram shows the air flow at different pressure drops of do88 Plenumcompared to the OEM Plenum