Fleece Performance has it all!

Powerstroke dyno prep

We are racing King Of The Hammers!

Cummins vs. EPA - what happened?!

Your mechanic may think the egr is faulted…

Let’s design a shirt!

See you at PRI!

2017 Shaker Challenger dyno testing

2017 shaker hemi challenger #ppei #dyno #hemi

2021 Cummins testing #ppei #dyno #cummins #korywillis

2017 Challenger R/T Shaker

2012 Cummins made 160hp with 2 modification.

Fleece Performance has it all! #ppei #dyno

King of Hammers here we come! #canam #maverickx3 #dyno #ppei #kingofhammers #mg1

Regear your vehicle! #ppei #dyno

PPEI SXS shop

2012 Cummins makes 160hp over stock with only 2 simple modifications! #ppei #dyno #korywillis

Unleashing Cummins HP

PPEI Tuning for Ford F150 EcoBoost

PPEI Promod Racecar on Dyno

Emissions Compliant PPEI Tuned Duramax L5P 507hp

You should be worried! But not about this.

“Why does it take PPEI so long to tune new trucks"

Let the MG1 Ecu party begin! #Canam #MaverickX3 #MG1 #PPEITuning #PPEI

500hp L5P tow tune testing.