Hello, i have a 99 s70 t5 that i want to make fast. I have a boost gauge in, and adding the controller. I also have an air intake, what should I do next? My dad suggested a used catback

 

First I would do a full tune up and make sure the motor is in good enough condition to build up. Then a good place to start is help it breathe better (intake and exhaust upgrade. Then increase fueling. Check out IPD.com, they sell a lot of performance parts for Volvos

 

Yeah, I have an intake. I have replaced all my coils too. I was wondering about exhausts though, I would idealy be able to find a used one for cheaper. Another thing was a tune, I added the boost controller and my car freaks out if the PSI goes over 15, and turns it back to like 6. Dont wanna have to pay 800 for a ecu flash