I got a 1.8 tq automatic and wanted some performance upgrades. Ive been looking at revo stage 2 just need an exhaust and front mount intercooler, will any of this harm my car or transmission its automatic

 

A lot of people have told me to check out www.goapr.com. That's where I found an ECU upgrade...just debating on it now.

 

None of what you ask about will "harm" your car. Now the fact that you have an auto even a w/a tune your car will feel slower than a 5speed with similar mods But I defiantly say a tune is worth it and makes the car more fun