What plugs for a 2.5 running 450-500 bhp make, part numbers and where from cheap Cheers John

 

Come on some one should know! with all the high powered impreza's i keep reading about on here John....

 

Top

 

id say a grade 8 or equivalent but ive never found any as im after some too...

 

Thanks for the reply m8! was thinking i was on my own in here.

grade 8 yeah i know that, was wanting part number or another make other than NGK and a place to get tham for £30 a set lol

but again thanks for the responce we'll just keep sending it to the top and someone might help

 

LFR6AIX-11 NGK Iridium

or

Denso Iridium plug 5344

 

Heard Denso's are bad news, never heard of LFR6AIX-11 NGK Iridium will these do 500bhp and how much

 

Also interested
Currently running PFR7B's and they'll need changing soon!

 

I only use NGK so I cant comment on any other brand. LFR6AIX-11 = 6619 is the stock number if that helps you find them. Price... shouldnt cost you more than 30 quid for a set of 4.

 

That look OK for a std Scoob, but we are talking 400+ bhp 2.5's here

NGK PFR7B's are a few quid a set more than the LFR6AIX-11's

Looks like the next step colder plug will be something like an NGK R7435-8 At £23.....Each!!!

 

going to try some NGK BKR8 there between a 7 and a racing 8 Stockcar put me on to them going to try them coz my 7's are fooked so need new ones anyway see if i can get 1.8 bar with gt35 compressor trying to blow them out lol

 

that LFR code looks more like a Normally Aspirated part number..................pfr6b's for std motors..............

alyn