Lethal performance is a good one. It is all one piece so there are no issues of having potentially leaky cat delete sections.

Also, people have been asking if I use 93 octane.[/QUOTE]


I use premium fuel only, the price difference is not that much per tank and when you use the cheap stuff you loose a little bit of power about 20hp because the computer takes out timing to prevent detonation. Run a tank of 93 and see if you notice a difference. It shouldn't hurt anything using 87 but I don't see the point also if you get a tune you will probably need to run 91-93 octane anyway.

I use premium fuel only, the price difference is not that much per tank and when you use the cheap stuff you loose a little bit of power about 20hp because the computer takes out timing to prevent detonation. Run a tank of 93 and see if you notice a difference. It shouldn't hurt anything using 87 but I don't see the point also if you get a tune you will probably need to run 91-93 octane anyway.[/QUOTE]

I can get into a lengthy discussion about all that.....:snoopfacepalm:

Check out VMP tuning as well

Shaun Perry at AED is one of the best Tuners in the country for Mustangs.

http://www.advancedenginedevelopment.com/contact-us.

Ford Racing X Pipe is very good fit.