Denso Iridium Power Sparkplugs - Smart Car of America Forums : Smart Car Forum

SmartCarPerformance · 10-02-2009, 12:55 PM

We have these in stock and ready to ship

Remember take an additional 15% off for the month of October.

Email us at smartcar.performance@gmail.com

silverbrabus · 10-03-2009, 09:50 AM

You guys tried them? Pretty impressive for just a sparkplug change, no?

Denso iridium power IXUH22: user review

SmartCarPerformance · 10-03-2009, 11:35 AM

Nothing beats a user's actual input of using the product. I think your input of installing the sparkplug and the mild difference in performance was very good. I may be installing these spark plugs pretty soon to experience the difference myself.

SmartCarPerformance · 02-17-2010, 01:52 AM

These spark plugs are great. Here is our direct link:

SmartCar Performance - Iridium Power Spark Plugs

**SmartDigger** · 02-17-2010, 09:39 PM

sweet I will be getting these when needed

chumly · 02-17-2010, 09:52 PM

I put these plugs in recently and I noticed my gas mileage is better this winter than last winter by about 2 mpg.This is the only thing different from last year except this year it is colder which should make mileage worse. I am very satisfied with them.

I'm curious what difference they'll make after it warms up.

wrumbarger · 02-20-2010, 12:52 PM

Just searching around and I found HALO spark plugs

Halo Spark Plug - Increase Gas Mileage & Save Gas

I remember using something similar on a car that I drove in Australia back in the '80's. (Had a "cage" type electrode instead of the standard single electrode)

anyone have anything (positive or negative) to say about these HALO plugs (or anything similar)?

Already have an e-mail into the company asking about pricing and availabilty for 3 to fit a smart (Denso XU22HDR9)

Just heard back: "We are sorry, we do not have plugs for this application"