Tommy

i currently have an intake, catback, and underdrive pulleys. if i were to add a down pipe and a y-pipe would i have to get a different computer? i am already running pretty rich on the factory ecu....thanks

1FAST7

by the time u get a downpipe is certainly is a good thing to get an ECU.

Viper jr

I was showing rich on my air/fuel gauge with an intake, cat-back and downpipe but managed to crack an apex seal anyways - its not worth the engine, get a computer.

r0t0rhead93

i have been running intake,downpipe,and catback for about 6 months now with no problems.

Pressurized

Why risk it? If you can pick up 25hp and keep your car safe at the sme time....what a deal!

Just remember to look at EVERY ECU before you make a choice.....
I chose the M2, and although I'm very happy with it and their service, I have already maxed out it's usefulness and I've had it for 2 months.......sheesh

I would say look into the Power FC or Pettit Unlimited if you're going to do some serious modding.....

Tommy

i'm pretty strapped for cash....i am in the process of getting a new motor and turbos and i ran across the dp and ypipe. i dont have enough for a new ecu hence my question.....thanks for the replys

Viper jr

the apexi avc-r is a avenue you can pursue too, it'll at least make sure you get more fuel in there. only problem is that it seems to outlive its usefulness after a few mods