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Feb 24, 2022 · I used jba headers on my 99 454 vortec and hp tuners to tune it out. I left my egr valve in place and just cut the end off the return line ...
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Apr 13, 2014 · The only way to get the upper intake off is to remove the EGR tube that goes from the intake down to the manifold on the driver side.
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If you will be sending us your ECM for reprogram you will need to select "Remove Core Charge". We no longer offer tuning for the 1996-1997 model years.
Dec 2, 2012 · If I use headers for an older truck, can I bypass the EGR and plug the intake port without any performance/efficiency/PCM issues?
May 4, 2015 · I am new to factory ecm tuning and have a 94 Chevy dually with a TBI 454 with a 7427 ecm. I get the code 32 for the egr occasionally when driving the truck.
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The GM 7.4L UltraPower ECM has long been the ultimate performance modification you can make to your GM 7.4L powered RV or truck with the highest power gains on ...
May 24, 2008 · The only thing that will tune 96-97 Vortec Trucks is Tunercat OBD2 (not the same TC used on 94-95 LT1 cars) which was sold to Jet and is now being sold as the ...