Mustang and Ford Performance Forums banner
1 - 4 of 4 Posts

27 Posts
Discussion Starter · #1 ·
as you know I have your 3.10 pulley and your street chip tuned for CA gas etc. I recently emailed you my dyno chart which showed my A/F curve to be starting out at 15 and flattening out to a nice 11.4 at the top end. I have just installed a Bassani X-pipe (cat-back already installed) and also plan to put on a throttlebody and my question is this:

How will those mods effect the A/F ratio?
Will it be necessary/critical to have a retune on the chip for safety reasons (too lean) or should I get a retune done to take advantage of the new additions for more HP & TQ?

Thank you

1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.