Just came back from testing Nightriders O2 IEDdevice. Just a simple wire that slightly reduces the voltage that the O2 sensor sends back to the ECU.
http://www.nightrider.com/parts/
Here's my results. The last time I tested the Bike I had the Terminal Velocity II on. Outside temp was 65 degrees. The temperature of my heads taken with an infrared thermometer just to the left of the spark plug was 320 degrees front, and 350 degrees rear. Fuel mileage was around 44 mpg.

Today without the terminal velocity IIand just the O2 IED's installed from Nightrider. Outside temperature was 60. The temperature of my heads taken with an infrared thermometer just to the left of the spark plug was 244 degrees front and 250 degrees rear. Fuel mileage was 42 mpg.
Bike ran good, exhaust sounded louder. Pretty amazing for a device that costs only $69.99.
Accessories running on my Bike are an RK3909 K&N air kit and Rush Mufflers with 2 inch baffles.
Pulled the plugs and they had just a slight tint of tan compared to last time where they were white.
With results this good I am tempted to buy their LC1 Wide Band sensors and try adjusting a little lower AFR.

This is not another Nightrider advertisement. As most of you thought I was working for Terminal Velocity. The TVII worked good, fuel mileage was excellent, but it just didn't cool my Motor. According to Jim the Tech guy he says my unit is not the norm and they plan to send me a new one. After todays results I'm not sure I need anything. Its amazing what dropping the AFR to just 14.2 did for my engine temperature. I wish I had tested the TVII to see how high the AFR was running.

My advice, save yourself $150 plus labor for the dealers stage one and do the O2 IED instead.

I'm sure a good tune up with a SERT couldn't help to make it run better, but with these results I'm happy. Took a whole 10 minutes to install.

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Cruiser good to hear. I have them sitting in my garage, awaiting for spring. Give us a follow up.

Thanks Fastbagger, will do. I'm thinking about now grabbing their LC1's.

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I put them on my 08WG and I'm pretty happy. Bike runs great and the engine is a little smoother at speed. 14.7 is just too lean.

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Regards,
RLK

08 FXDWG
07 XL1200L (wife)
98 FLHR

07 R1200GSA
95 R100PDC
93 R100PD

It's amazing what going from 14.7 to 14.2 will do for the Bike. I never would have believed it if I hadn't seen it with my own eyes.

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Thanks for the link cruiser. Expensive being the Guinea pig. I hope you can recover your costs. This might be the answer I'm looking for.
BTW did you have a Stage 1 flash prior to putting these in?

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08 RG
07 XL1200L

Heywood:

No, I never had the dealer do a stage one.

"Expensive being the Guinea Pig". Terminal Velocity II has been around for a while now. According to their Tech Man I just got a hold of a Bad one. They're suppose to send me a new one, we'll see. The way the Bike runs now with Nightriders O2 IED I just might leave it alone as it is running good now and a whole lot cooler.

I'm really curious now to see how Nightriders LC1's work.

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NAMZ sells these also. Not sure if its the same thing or their own brand.
http://www.namzcustomcycleproducts.com/NO2-IED.htm

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Victor
07 Harley FXST Softail
86 B-Powered CRX (SM2 Solo2, HPDE-3 NASA & TA-B Time Attack)

Now that I think about it whats a better choice?

$160 for these?
$150 for the stage 1 down load?

Or will you still have the same heat issues with the down load? Is there anything the down load gives that these dont?

Sorry at the point of needing to do this so I thought I would ask.

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Victor
07 Harley FXST Softail
86 B-Powered CRX (SM2 Solo2, HPDE-3 NASA & TA-B Time Attack)

Same thing, and the download from the dealer is still lean.
And the $79.99 is for a pair.

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http://i223.photobucket.com/albums/d...rygreenhm7.jpg

Barry Green
08 FLHX