997/GT2/S Turbo Intercoolers

Intercoolers for the 997 Turbo models are even more critical than in the 996 Turbo because of the hotter running turbos, hence why Porsche made improvements to them over the previous 996 Turbo models. Furthermore the 997 Turbo DME (the brain) is more knock sensitive to higher intake temps (IATs) and as a result reduces power when IATs rise.

Despite this improvement in intercooler design, one of the most overlooked upgrades on any 997 Turbo model are the intercoolers, especially when tuning a 997 Turbo. We often see competitors running higher ignition and boost without fitting better intercoolers to the 997 Turbo. The primary goal of upgraded intercoolers is the lower the intake temperature (IATs), preventing detonation, and keep the car from pulling timing. Cooler intake temperatures equals greater power retained.

The 997 Turbo comes with much better intercoolers than on the 996 Turbo. The 997 Turbo models run two different intercoolers types depending on the model. The generation one 997 Turbo runs an intercooler than flows better than the GT2/S model, but the later models, including the GT2RS, run intercoolers that cool better. These intercoolers are widely named "GT2RS Intercoolers". 9E uses these intercoolers for some of its packages in the 996 Turbo model range.

We quite commonly hear that people have had remaps from competitors without having any issues. The simple fact is that if you never take the car over certain speeds, the 997 Turbo DME keeps everything under control. The car will feel faster up to 120mph etc, but if you were to continue to higher speeds, or you are tracking the car where the engine does not get an opportunity to reduce the IATs, the car will feel like it is losing power, or as we say "Hitting a brick wall" - bascially the 997 Turbo DME is doing its job. Better intercoolers help to minimise this.

Intercoolers are not just about cooling. It is also important the amount of flow and pressure drop. Think of it this way, if the intercoolers cool amazingly then in general they achieve this by having more rows of cooling plates but that can also create flow restrictions. It is all about finding the right balance, the right intercooler for the package on your car.

As part out our R&D when creating all our 9E Packages, we tested many different aftermarket intercoolers. Some cooled better, but restricted flow, others cooled well, but then heatsoaked and took time to recover when off boost. In general based on our extensive experience in testing we find that the 997gt2rs intercoolers is an excellent upgrade for any 997 turbo generation one model. After this they become a bottleneck and restrict flow too much. We have now built larger intercoolers to address this that work better than the 997gt2rs intercoolers and use these on our high hp packages.


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9E 5 x 14  Intercoolers

Our 5 x 14 inch intercoolers are the perfect intercooler for high hp (over 650hp) 997 Turbo cars. They are hand crafted and pressure tested to 35psi. We use only high quality Bell cores along with custom one piece end tanks that come with our CNC'd fittings for perfect seal with the stock intercooler hoses. Lower intake temperatures not only prevent detonation but also stop the car from pulling timing and eventually produce more horse power.