whats up guys. what are the best spark plugs & wires to put in 02 tl type s.

 

NGK Iridium are very good (among the very best) and you dont change wires in our cars like some others because there are coil packs on each cylinder, so you only replace them if they go bad

http://www.ngksparkplugs.com/product...420&country=US

 

Denso Iridiums are also good, albeit a bit more expensive than the NGKs.

 

Denso Iridium has a smaller center electrode 0.4mm vs NGK's 0.7mm. Denso's web has dyno result showing 4 hp max gain on a Civic http://www.densoiridium.com/dynochart.php?id=1
Smaller center electrode reduces voltage requirement but have less Iridium to wear off. Denso recommends to change their Ir plug at 30K interval. I have NGK Iridium, it last longer than Denso.

 

i have the densos. Never noticed any hp gain, but i can say they dont last as long as the NGK

 

what determines this difference in the longevity of the spark plug?

 

See Denso FAQ
Q. How long will Iridium Last?
A. Iridium use represents the most significant technological advance in automotive spark plug manufacturing, since platinum was introduced in the early eighties. As vehicle manufacturers produce increasingly complex and efficient automobiles, there is a greater need for long-life plugs that can tolerate leaner fuel mixtures and improved combustion processes. DENSO has responded to this need by developing its Iridium alloy, originally for OE applications. For example, many newer Lexus’ and Toyota models carry an ultra long-life Iridium plug variation (.7mm with platinum tipped ground) that is capable of up to 120,000 miles of service. DENSO Iridium Power plugs, with their .4mm center electrode, have been developed for performance applications. Because gradual wear will “round-off” firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. For this reason, DENSO advises replacement after 30,000 miles.

 

what he said^^^^^^^^^^^^^^^^

 

ebay has them for 39.00 with 4.95 shipping. Good price, or is there a better deal out there?

 

NGK IX? Thats a good deal for 6 of them. 0.6 is not bad.

At a local auto parts store they are 41.76 before tax.

 

I have Denso IK20's and didn't notice a difference at all.

 

autozone. part # 5303 i believe. 12 bucks a plugs. i have denso in my car. hit me up at djune10@sprintpcs.com.

 

I have denso iridium's in my car and felt no difference at all when I installed them. I will go with NGK iridium's next time. I don't understand why Denso's are twice as expensive. When I bought them I bought into the notion they would give me more power as they advertized. If they did it is so minimal and for the price I would have got NGK's if I could go back in time. BTW when changing plugs what are signs that you might have a bad coilpack? I just want to know I have no reason to believe I have a bad one.

 

Is the info in this thread still current?

 

What do you mean? If your looking for plugs, gust get the OEM NGK Plugs. They will last the longest and you wont see any benefits from performance plugs.

 

Just asking if there were any new developments that came out since the last post in this thread.

 

Im sorry i guess i dont understand what you mean by "Developments" ?

 

so your sayin theres really no difference in performance between the ngk and denso just longevity?

 

Natural progression like technological advancements or a new manufacturing process that makes a plug better than the rest. For instance from Platinum to Iridium.

 

No there are no updates. the OEM plug is about the best bet. It lasts the longest.

 

I never saw any. but the denso (iridium) doesnt last as long

 

Great, thanks