Hi Guys! I am researching the modifications to do to my future evo. From my knowledge, these are the bolt on mods:

• Cat-Back Exhaust
• Downpipe
• Intake System
• Intercooler Kit
• Test Pipe
• Cobb AccessPort V3
• Grimmspeed 3 Port Evo X Boost Control Solenoid

If you were to install these mods in a certain order, what would it be?

Could someone prioritize this list, ranging from most important, or greatest improvement, to the least? I'm going to guess:

1. Cobb AccessPort V3
2. Grimmspeed 3 Port Evo X Boost Control Solenoid
3. Intake System
4. Cat-Back Exhaust
5. Downpipe
6. Test pipe
7. Intercooler Kit

Which Mods should come next after this? Turbo/fuel injectors? Whats next?

 

Intake, Test Pipe, and 3 port are the three mods that make the most power. FMIC and Cat-back is after that. You’ll barely see anything from a downpipe on these cars unless its a 02 dump. Cobb APv3 isn’t really necessary (unless you really want one), get an open source tune instead.

 

Catback, test pipe, intake, boost controller.

 

Catback, test pipe, 3 port boost controller. In that order, intake isn't necessarily huge on gains, if any. More so for that wooshing noise. Keep in mind once you install a 3 port boost controller, you should probably get the car tuned or install all your other mods then tune it or you'll over boost.

Greatest differences that I noticed, was the test pipe and 3 port.

 

Intake definitely makes a worth while difference.