I installed pacesetter coated longtube headers on my 94 formy. I must say, what a difference. Wide open throttle is so bad ass. Shocking actually. I havent ran any datalogs yet, It runs fine. I recently had the heads worked over, new timing set, and 1.6 roller tip rockers. The power band definately moved up. It screams all the way to red line. I have tunercats,etc. So a tune is in my future, I am very pleased so far.