Is there a Mustang Modification Index or anything along those lines that describes the various types of gains that can be acheived from various mods to various 4.6 engines. In my case, I am looking for the 2V obviously but does anyone know of such a thing. Almost like a calculator or forumla that estimates the amount of horsepower/torque gains from cai or midpipe or catback or all of the above. It would be really awesome if there was such a thing because I am sure many of us would use it. Any thoughts?

 

Here's a link to a book you can buy.

http://www.motorbooks.com/Store/Prod...ails_31764.ncm

It's not a bad book to use for reference but it doesn't have all engine set-up's and there are just a few "stock" engines being modified.It's all crank HP also.So no DD comparisons.Not all mods are represented either.