I have an '05 GT that I made some changes to, K&N cold air kit, Magnaflow Catbacks. With these changes I pulled 303 RWHP on the dyno. I added an SCT Xcalibrator tune and the dyno improved to 316. This was with 87 octane in the tank. It was about a two hour trip to the dyno shop and it was initially planned as a recon, but after talking with the dyno master I went for it.
He gave me a 92 octane tune that he said he has gotten 340 RWHP on the new Mustangs with. With just the 87 tune on board, there was a noticeable difference. With the 92 it was quite dramatic. Just whether I have the 340 he claims it yet to be seen. After my warranty lapses (18 months) I plan to go back and make some more mods. i.e. BBK throttle body and Steeda undrive pulley.
Anybody with similar mods have any input.
He gave me a 92 octane tune that he said he has gotten 340 RWHP on the new Mustangs with. With just the 87 tune on board, there was a noticeable difference. With the 92 it was quite dramatic. Just whether I have the 340 he claims it yet to be seen. After my warranty lapses (18 months) I plan to go back and make some more mods. i.e. BBK throttle body and Steeda undrive pulley.
Anybody with similar mods have any input.