2008 And 2009 Pontiac G8 Receives Over 6 More Horsepower With AEM Air Intake System

The Pontiac G8 is a performance sedan and replaced the Bonneville and Grand Prix in the Pontiac line-up. The G8 was actually manufactured by General Motors’ Australian subsidiary and is based on the Holden VE Commodore.
AEM's charcoal gray intake number 21-8027DC for the 2008 and 2009 Pontiac G8 6.0L V8 engine.
AEM's charcoal gray intake number 21-8027DC for the 2008 and 2009 Pontiac G8 6.0L V8 engine.
AEM's polished aluminum intake number 21-8027DP for the 2008 and 2009 Pontiac G8 6.0L V8 engine.
AEM's polished aluminum intake number 21-8027DP for the 2008 and 2009 Pontiac G8 6.0L V8 engine.


Available in three trim levels, Sedan, GT, and GXP, the G8 is Pontiac’s first rear-wheel drive sedan since 1986. Unfortunately, the 2009 model year brought production of the G8 to an end as GM announced the discontinuation of the Pontiac brand.

Although production of the G8 has ceased, AEM can appreciate the value of engineering a performance air intake system for this vehicle. The G8’s short production run is sure to make it an instant classic with performance enthusiasts and collectors.

Owners of 2008 and 2009 Pontiac G8 models with a 6.0L V8 engine, can now increase their performance while also increasing under hood appeal with the choice of either a gray powder coated mandrel-bent aluminum intake tube (21-8027DC) or polished aluminum intake tube (21-8027DP).

Dyno chart for a 2008 Pontiac G8 with a 6.0L V8 engine.
Dyno chart for a 2008 Pontiac G8 with a 6.0L V8 engine.
AEM engineers created a highly unique intake system for G8 6.0L models. Emissions equipment found inside the factory air box is becoming increasingly common. This means that removing the OE air box assembly has the potential to make a vehicle non-compliant with emissions regulations.

To overcome this obstacle, AEM designers created a mandrel-bent aluminum air intake inlet tube for the G8 6.0L that retains the use of the factory air box assembly. Part numbers 21-8027DC and 21-8027DP eliminate the OE resonator chamber and accordion style factory inlet tube. The result is a smoother delivery of air to the engine, a sizeable increase in horsepower, and an intake that is street legal in all 50-states.

2008 Pontiac G8 with a 6.0L V8 engine.
2008 Pontiac G8 with a 6.0L V8 engine.
AEM’s Research and Development Department tested a 2008 Pontiac G8 with a 6.0L V8 engine on our dynamometer. Results showed horsepower increases throughout the RPM range with a maximum horsepower gain of 6.67 horsepower @ 5,000 RPM!

Installation of AEM’s performance air intake system for the Pontiac G8 6.0L is simple and relatively straightforward. It requires no cutting or drilling and can be installed with common hand tools. Additionally, AEM warrants this intake system for the life of your vehicle.

To find all AEM products for your vehicle, use the AEM application search function and the Where to Buy function on AEMIntakes.com to find an AEM dealer near you.