Iridium Plugs on a Standardish Car

[hadyn]

Is it worth fitting Iridium Plugs(e.g. denso ik22s or NGK equivs) to a TT with just a catback exhaust??

Not looking to decat just yet, so would a set of standard plugs be the best bet??

[merckx]

Should be okay with just the cat back exhaust.

Just get some NGK plugs anyway, mine were just under £11 from Partco.

[hadyn]

are the standard NGKs commonly available from most motor factors?? I noticed hafords didnt have the supra tt listed for any of their spark plug ranges

[merckx]

I got some NGK BKR7E (6097), the car is now running perfectly(£10.43 a set from Partco).

I was getting a misfire on the decat until I fitted these plugs.

Partco had them in stock, do a search in the Yellow pages.

This is from MKIV.COM

Here is a list of the most commonly used spark plugs,

Stock Denso PK20R11, Comes pre-gaped at 0.043 inch (best on stock supra)
Stock NGK BKR6EP-11 (2978), Comes pre-gaped at 0.043 inch (best on stock supra)
NGK BKR7E (6097), Comes pre-gaped at 0.032 inch (best on BPU & APU supra)
NGK BCPR7ES (3330), Comes pre-gaped at 0.032 inch (best on BPU & APU supra)

[hadyn]

im going to go for a set of the standard NGKs i think...

are they available from halfords if you just quote the spark plug number to them?

[merckx]

I wouldn't bother with Halfords, Partco is a Motor Factor and they sell to everyone. Loads of branches across the country.

Go to Yell.com , type in Partco where you put the name and then the location.

They'll be cheap and they should have them in stock.