I have 05 6mt coupe, and jus installed FI HFCs and full borla exhaust about a week ago. For some reason today I noticed noticed a white smoke coming out of my exhaust at WOT on the highway at high rpms. Any idea what this might be? Is this that famous oil consumption issue?

Clutch appears to be slipping as well before hand. Is it possible oil can be leaking onto it causing it to slip?

 

White smoke = burning oil = normally a headgasket on most cars.

Have you checked your oil level? Do you typically find yourself losing oil? Pay close attention. If its low I'd take it in for an OC test before you are out of powertrain warranty.

 

^ He has an 05. He's outta warranty. Unless you extended OP

 

White smoke is more likely indicative of a coolant leak. Usually, burnt oil is a light blue color.

 

Powertrain is 70/70 foo. Unless he drives a sh!tton he's probably under 70K miles.

 

I have an 03 that has about 52k; would i still be under powertrain warranty?

 

no, there is a time limit 5 year/70K miles.

 

I just looked it up on infinitihelp and the powertrain is 6 years, 70,000 miles. j4lD your car is too old. Would've expired sometime in 09. OP should still be covered as long as he hasn't exceeded 70K.

 

Yep, and it is usually the head gasket.

 

Who you callin foo, foo!