JEEP 6.4L Upgrades at Geelong Performance Centre
At Geelong Performance Centre, we offer a range of upgrades to enhance the performance of your JEEP SRT 6.4L, delivering more power, better sound, and improved efficiency. Our upgrades are completed in one to two days and include both Stage 1 and Stage 2 options, tailored to suit your driving needs. Here's a detailed look at what each stage offers:
Stage 1 | 365KW
Our Stage 1 upgrade begins with the installation of a high-flow K&N Cold Air Intake system. This system boosts engine breathing, increasing power and torque while enhancing the V8's iconic sound. Alongside this, we fit a Pacemaker dual 3” cat-back exhaust system to improve airflow further and elevate the overall driving experience.
Once these components are installed, we perform a custom ECU tune on our state-of-the-art dyno, optimising the engine for power, torque, and fuel efficiency. We fine-tune the vehicle during road testing to ensure that all adjustments enhance performance and driveability. At the end of the process, you will receive a detailed dyno graph showing the gains made in power and torque.
Stage 2 | 385KW
Stage 2 builds on the upgrades from Stage 1, adding more significant improvements for enhanced performance. We install a set of 4-1 headers (extractors) and high-flow metallic catalytic converters. These components are specifically designed to improve exhaust flow, delivering a noticeable increase in power and torque. The headers we use are selected based on the level of modification and application—either Pacemaker’s 2” 4-1 headers for supercharged engines or 1-7/8” headers for naturally aspirated setups, both paired with 3” high-flow cats.
As with Stage 1, we perform a custom ECU dyno tune to optimise your vehicle’s power, efficiency, and responsiveness. This upgrade delivers a thrilling V8 sound, with deep and resonant exhaust notes, and significantly improved performance. After the upgrade, you'll receive a dyno graph detailing the performance gains.
Components Explained:
Cold Air Intake: The K&N Cold Air Induction (CAI) system ensures that your Hemi engine breathes freely. The large-diameter intake path and pod-style air filter reduce airflow restriction, while the enclosed housing helps minimise the intake of hot air from the engine bay, maximising power gains.
Cat-back Exhaust System: The cat-back exhaust system replaces everything from the catalytic converters to the tips of the exhaust. This system uses larger diameter pipes and high-flow mufflers to enhance both sound and performance. Pacemaker Exhausts, a trusted Australian brand for nearly 50 years, manufactures a premium stainless steel dual 3” system, ensuring quality and durability, while delivering a rich and aggressive exhaust note.
Headers & High-Flow Cats: Our Stage 2 upgrade includes 4-1 headers (extractors), which are designed to improve exhaust flow and performance. These headers are available in different sizes to suit both naturally aspirated and blown (supercharged) setups. The high-flow catalytic converters are durable and feature a metal-coated matrix with either 100 or 200 CPI (cells per inch) for maximum efficiency and longevity. This system is engineered to handle the high performance of the Hemi V8.
At Geelong Performance Centre, we’re dedicated to delivering top-quality performance upgrades for your JEEP SRT 6.4L, ensuring your vehicle performs at its best.
