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I had a PCIII and recently had a SERT installed. You will need a dyno tune so that adds to the cost. Got the SERT on Ebay for $240 (great deal). If you use Ebay, be sure the buy from a reputable Ebay store. The SERT must be NIB because it only works on one bike.
My bike ran good with the PCIII but it runs even better with the SERT. I also like that I don't have to install anything or bypass the O2 sensors. The SERT simply allows you to reprogram the ECM.
IMO the SERT is more tunable, but my biggest issue with it is,
YOU CAN"T DO IT YOURSELF!!!
I hate that s..t.
PC3 I will take 95% tuned and the satisfaction of $500 in beer and good times - and that is only for each tune (which you will need with each new mod)
I was fortunate HD let me return my SERT,i told them that it wasn't user freindly like the parts person boasted,and that i wasn't going to pay them for a tune every time i change an engine or exhaust item on my bike!!I installed the PCIII myself in about 20 mins and have tweaked a few maps by myself.I'll pay for one good tune when i cam up,and i'll ask to get a peak HP/TQ map and a fuel econo map so i can switch up as needed.USB to my laptop and presto-change-o!!!!
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