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When it comes to extracting real-world performance from Holden’s LLT SV6 , the key is addressing factory restrictions and backing it all up with proper dyno tuning. Daryl’s SV6 is a perfect example of how the right combination of hardware and calibration can completely transform how the car drives. 🧩 The Problem with a Stock LLT From the factory, LLT engines are held back by restrictive exhaust components, conservative ECU torque management, and intake limitations. While the