Originally Posted by billvp
Did you gain 16rwhp with the HE and exhaust? I thought that it was generally accepted that neither of those items would gain rwhp on a dyno.
My friend's shop uses a DynoCom Dyno so to be honest I don't know if the exhaust helped since I switched dyno's. It was also 70*F when I got the 349whp. I ran it a few months ago in 90*F weather and I only pulled a 314whp.
HE isn't an HP modification. It allows the car to not pull timing if your car is tuned for it. I am contemplating putting he stock exhaust back on once the weather cools down here since my fastest time was in some pretty cold non-humid conditions. There's also a chance that my tune is messed up since I got the car flashed with the added exhaust, not a dyno tune. If you get an exhaust you need to dyno tune it. I'm hoping to get it done before the end of the year