The ULTIMATE Guide To Modding Your Fiesta ST!

[Jason@dizzytuning]

*sorry, I accidently deleted the post, trying to update the file*

I threw this guide together for the community. This can be considered a step-by-step guide on how to modify your Fiesta ST. It has been compiled from all the data and knowledge I have learned from tuning various Fiesta setups over the last 3 years. I am open to suggestions, and will keep the latest version posted at the top of the page.

My suggestion to some of you, is to find the modification that is currently installed on your car (with the highest number to left of it). Once you locate that line, you should have every modification listed above it, already installed on your vehicle. If you do not, it is highly recommended.

 

[CSM]

I like it! although your X37 figures are kind of low IMO. I did 258 on 93 and 275 on E30 on a dyno

 

[Crystals]

I unknowingly did everything on the list down to the Stage 2 tune

No wonder your flash tune still kicks ass after a year!

 

[Jason@dizzytuning]

I thought it was time I updated this Modification Guide from 2020


https://cdn.shopify.com/s/files/1/0...iesta_ST_-_revised_1-17-2025.pdf?v=1737148130