[UrbanRedneck]

Mine was never tuned after putting them on. Brenspeed did my email tune and tehy told me there's no point in a tune for headers. I don't know my afr, as I've never had it on a dyno, but it's been like 10k miles since I put them on and I've never had any problem.

 

[UrbanRedneck]

I dunno about you, but I'd take a big gain in average torque over a gain in peak horsepower anyday. That's kinda odd, mine "felt" like it lost a lot of power down low. But ass dyno's are misleading. My car still feels slow to me, though it really isn't. I mean, it ran 13.1 on street tires so it isn't "slow", but it feels slow to me. I must have a Mustang brand ass dyno or something. I just hope it doesn't feel slow anymore after I supercharge it next year.

 

[UrbanRedneck]

Thanks Ian. It had more in it too. I only got 2 runs that day, so I had no practice. I was slipping the clutch out at 2900ish with zero tire spin, 1.8 60'. I think I coulda got more agressive and made a 13 flat. We'll see this summer.