Found Dyno runs for both cars in the Dyno Data Base and figured i would share.
Info :Same dyno tested 24hrs apart at Newtech Performance in the bay area.
Active Stage 2+ 625 HP @ 7-7.5 psi
Manual transmission
Pump 91 octane + water meth
Akrapovic Evolution Exhaust
463 whp SAE
ESS VT1-535 535 HP @ 4.5-5 psi
Manual transmission
Pump 91 octane
Akrapovic Evolution Exhaust
471 whp SAE
Info :Same dyno tested 24hrs apart at Newtech Performance in the bay area.
Active Stage 2+ 625 HP @ 7-7.5 psi
Manual transmission
Pump 91 octane + water meth
Akrapovic Evolution Exhaust
463 whp SAE
ESS VT1-535 535 HP @ 4.5-5 psi
Manual transmission
Pump 91 octane
Akrapovic Evolution Exhaust
471 whp SAE
both company's make great products but at the end of the day ess has a cheaper kit with better results and has proven to be reliable with no issues at all, and that's why counts when buying one of these