Denso IVT22-$36
 

I decided to check my local Advance auto parts for the denso ivt22's and was surprised to pay only $36 including tax. If you need some asap though, go somewhere else since they dont stock them. They had to order them straight from denso. just thought i would share.

whats the difference between IVT 22 and IVT 20 because the denso website recommends the 20s for the MS3 and why would they be better?

IVT22 is one step colder, you should use those if youre running more than stock boost

Are these the same plugs for our Mazdaspeed3?

4 DENSO IRIDIUM Power Spark Plugs ITV22 5340 - Chevy:eBay Motors (item 270389179968 end time Nov-07-09 11:13:06 PST)

Not necessarily, we are using stock plugs in ours.

Nice find.

these work, i ordered this set a couple weeks back, nice to pay <40 for freakin spark plugs

Is that something I should get considering my mods in sig? (stock boost)

You have similar mods to me. I don't run them, but I don't think it could hurt. Like E4 said, its all up to the driver.

whats the point of them?

the 22's reduce knock but foul quicker, ive stuck to stock replacement denso or ngk.

Stock or 22's work well. I even had 24's in there and didn't have a problem until recently when I started having high RPM misfire once I upped the boost with the AP. I had about 20,000 miles on the 24's though. I replaced them with 22's the other day and my misfire went away. I found my 24's were gapped around >.032, which was probably causing some spark blowout at high RPM/high boost.

Denso Iridium Racing Spark Plugs:eBay Motors (item 280392624730 end time Dec-01-09 13:15:00 PST)

how about these...$25.95 +$6 shipping = $31.95 unless there is CA tax this is the cheapest i've found for ITV-22

What should the denso ivt22 be gapped at with the cobb ap on 18-16lbs with sri/inlet pipe

.026-.028

thanks.. i hve the plugs on the way along wit a cobb sri... this should get interesting...

Get ATR and begin tuning on your own, that's my best advice. You will be able to tune the car the way you want. Without a lot of mods, i would do that for now.

They're updating some stuff for ATR to correct the load cap so you should wait a bit until they do it if you go that route.

Do a MAF cal. ASAP because that SRI will make your trims go way up.

thanks for the good $$$ on denso !

was this aimed towards me? if so whats ATR?

Yes... it's a tuning software that will enable you to tune the car with an AP, the way you want to. It's free once you get an AP.

With the Cobb SRI, some guys get a CEL for too lean because the trims go over +20%. It's just more air coming in through the MAF and the stock tune can't handle it.

o ok... i haven't got a cel yet and ive ran the piss out of my car since putting it on... but i will download this program... hell i haven't datalogged the first pass yet since ive retuned...

Just changed plugs... they were pre gapped to .028... so i figure thats good... i started the car and it idle a hell of alot better... havnt taken it around yet... can i expect any gains with the SRI and TIP with the ap 93 tune?