Well I'm a mechanic, cars are my thing, I just dont know anything about bikes. Looks like we have our unique talents. I have seen cars come through my shop with aftermarket plugs that cause misses, stumbles, hard starts and such. The biggest difference I can guess between a Buell and a Chevy is that the cars are far higher on the technology scale specifically because they have to meet strict emissions standards.

 

do they make +1 and +2's for our cars.. the one guy said +4's but i got a 2006 and cant use that bosch plug. If they make +2's i am all in, building up my engine with forged internels and plan to run nitrous or turbo or super down the road..

 

NGK Iridiums

 

bosch is the equivelant of a girl getting a $10 dollar haircut. it's not going to happen, and if it does, she's probably going to complain about it.

 

https://www.cobaltss.net/forums/2-2l-l61-performance-tech-45/warning-bosch-4s-88722/
i previosuly voted for bosch cuz i felt notin wheni installed it, than this mornign guess what? misfires, and it didnt feel good, read the thread, i made it, i even included pic of the bosch plugs more at the bottom, note those dam things had carbon build up inside the peg things, they are fried to ****, DO NOT GET BOSCH, i dont care what bosch claims about more distance and what not, not matter what you read on the bosch advertisements, do not get them!!!

 

myspace.com/jvcougar

NO DO NOT GET BOSCH +4's THEY WILL **** UP YOUR CAR..YOUR GONNA MISS FIRE
GET NGK,THEY ARE THE BEST

 

the bosche +4 doesnt affect 07s and up.. the 07 ignition system is different.. talk to jeff hackabuse about it.. speaking of which i need to call them, i want to no is +2s would mess up my car.. mines a 06.. i want +2s of any decent spark plug and i cant find any by NGK for a LS..

 

Iridium and platinum doesnt get rid of heat fast enough for the ss s/c when you mod it. i have tried many plugs just to see what happends and the iridium and the platinum plugs tops break off because of the heat. it all depends of how cold of a spark you need

 

NGK Laser Platinum from the factory, on my second set no issues. Works great

 

I have a question if anyone has some help for me..Im running 10:1 pistons, 60#ers, 2.9 pulley, intake, exhaust, header (catless dp), cobra HE...what NGK plugs should i be using???? GO!