I have added a cat-back exhuast and an air intake and I have not seen an increase in my horsepower. I first added the cat-back and I did notice that I got better gas mileage, but when I added the intake it went back down to the orginal stock mileage. I heard that I needed to reset my ECU but I am pretty new with cars and don't know much about reseting anything. Was wondering if anyone had any ideas on how to get my added horsepower and/or my reset question. I don't want to void my warrenty so I am not going to add a turbo or noz just yet.

 

just unhook the battery for a few minutes, and it will reset. On the HP issue. The extra HP is there, but it has just moved. On a N/A car when you add those mods most of the time you lose someTQ down low and gain some HP up high.