... SOLD ... SOLD ... an unused Holley HP EFI ECU only ... this was a spare for a race team that switched to a Holley Dominator Controller ... harnesses are available for just about any EFI set-up that you could imagine ... the HP has a self learning capability that minimizes the need for laptop tuning ...... $750 shipped .............

 

...... Still available .................

 

500$ shipped ???

 

..... Ouch ! .......... No .................

 

Had to try lol no one else was pm'ed...

 

............ Still available ................

 

whats trhe part number

 

... Holley part # 554-113 ............

 

................ Weekend bump .................

 

..... Bump it ... How about $750 shipped ? ..............

 

Will the Holley Commander 950 wiring harness work with this?

 

..... No , unfortunately it will not ... Holley incorporated some additional features into the HP ... wide band O2S for one ... that required an all new harness configuration ... the Avenger , HP , and Dominator all share the same harnesses which makes it easy to upgrade from the HP ... the harnesses needed for a typical MPFI set-up ( HSR or TPI ) will cost around $500 from a place like Summit or Jegs , there are some E-bay vendors that will give you a package deal ............

 

You can piece together the harness for your particular application on Amazon cheaper than Summit/Jegs or ebay if you invest a few hours online figuring out part numbers. That's what I did for the Avenger retrofit going on my car.

GLWS

 

This is a great system and great price considering its about $950 new just for the ecu.
I would buy it as a replacement for my HP ECU as my usb connector broke and I have had to resort to using an SD card in my handheld for tuning Right now, replacing the ECU is not my priority.

 

Does any know the parts list to make this the same as a complete 550-601 kit? I'm curious how much id save buying it like this versus the whole kit. Does ur ecu include a controller?

 

To make a 550-601 kit you need ... 554-113 ECU ... 558-101 TPI/SR harness ... 558-200 V8 injector harness ... 558-304 HEI ignition harness ... 558-308 Main Power harness ... 558-409 USB Cable (you probably have several of these already) ... 554-101 Bosch Wideband O2S ... GM MAP , IAT , ECT , and IAC ( you can use the ones you have on your TPI set-up ) ... the touch screen is not included with the 550-601 kit , but is available as 553-103 ... you will need a laptop to initiate your base tune and establish some operational parameters ... once you're up and running the Holley HP will automatically adjust fuel maps to your pre-set AFR targets ........ closed loop learning so to speak ..........

 

............. Still available .................

 

........... T T T ...................................

 

x

 

.......... Bump it up ...........

 

PM sent.