I’m getting a new 2019 XP4 turbo this weekend. Looking into getting a HMF exhaust (mainly to get rid of the cat to eliminate heat, not for a power gain) and Aftermarket Assassins intake charge tube and high flow intake tube. Are these changes going to change the tune enough to require a tuner? Everything else will be stock. I’m told they are scary lean stock?

Eventually I’m going to mod the heck out of it (and need a tuner) but for now just want to make a few changes to get rid of heat in the system.

Thanks for any info you can give if you have done this…..

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