For PCMtuner Users Stage 2- Modifying Car Intake and Exhaust System Function

Tuning & Mods Stage 2

HP Gains: 25-200+ horsepower

Mods Required: Tuning, Intake, Exhaust

Stage 2 is where things can become a lot different depending on the specific car in question, tuning company, and other factors. What is fair to say is that stage 2 tuning and mods are more aggressive. Stage 2 tunes are usually designed for use with other modifications. It's a good idea to already have the basic stage 1 mods like an intake and exhaust.

Then you add in more mods like headers for NA engines or downpipes for turbo engines. Cooling system upgrades like a FMIC are common stage 2 mods, too. The list goes on and on, and we'll provide a list in the stage 2 summary like we did above.

These are still fairly simple bolt-on mods that take things a step further than stage 1. We're not quite to the point of adding forced induction or upgrading stock turbos or superchargers. Stage 2 is typically where you're looking to maximize power and performance before moving onto more serious, expensive mods.

It's a little confusing since there can often be a large variety in stage 2 tuning and mods. Some engines may be considered stage 2 with a tune, intake, and headers. Another may still be stage 2 but have even more mods such as cams, intake manifold, fuel pump and injector upgrades, etc.