Originally Posted by boczo777
Extra-S is just oem sub right??
what is weight of it??
i assume its 75w-90
i talked to my local sub dealer and i was told they NEVER put 75w-90 just 80w-90
the dealer is an idiot just like 99% are.....and yeah....you may wanna use a racing fluid for the track
the extra s may work but wont last long....and if ya gonna track the car, plan to change all the fluids a LOT more regularly