Hi Fellow ST owners
Can you please help I know that the standard plug gap is 1.3 mm, I have heard conflicting thread
Some say with modified engines you can change the plug gap to 1.00 mm
So please can ST owner who have modified your engine
Can you help with this question

 

what st may help mk1 or 2 ?

 

my st170 is on a 52 plate

 

ok as its a 170 depends on plug brand used and is theres any mods done to engine, I run 1.3 on my densos but used to run 1.0 using ngks and oe before engine was breathed on