* No factory provisions: The Impala SS wasn't designed for forced induction. There are no factory mounting points or plumbing for turbochargers. Everything would need to be custom-fabricated.
* Engine modifications: The LS1 or LS4 engine in the Impala SS, while strong, would need significant internal upgrades to handle the increased stress of forced induction. This could include forged internals (pistons, connecting rods), upgraded head studs, and a higher-flow oil pump.
* Exhaust system: A completely new exhaust system, including manifolds, downpipes, and a high-flow cat-back, would be needed.
* Fuel system: The stock fuel system wouldn't be adequate. You'd likely need higher-capacity fuel injectors, a fuel pump upgrade, and possibly a fuel management system.
* Engine management: The stock ECU won't be able to handle the twin-turbo setup. A standalone engine management system (EMS) or a heavily tuned ECU would be necessary to properly control fuel delivery, ignition timing, and boost levels.
* Cooling system: The cooling system would require upgrades to handle the extra heat generated by the turbos. This might involve a larger radiator, upgraded water pump, and potentially an intercooler.
* Transmission: The automatic transmission in the Impala SS may not hold up to the increased power, especially if significant boost is used. Upgrading the transmission or even swapping it for a stronger unit might be necessary.
In short: While technically feasible, installing twin turbos on an Impala SS is a very complex, expensive, and time-consuming project that requires significant mechanical expertise and fabrication skills. It's not a project for a beginner. It's far more cost-effective to simply buy a car that already has a factory turbocharger or supercharger if forced induction is your goal.
