Holy ****. How did you do it 30min....Took me 1 hr and half.
5min-remove strut bar
30min-remove upper/lower plenum.
10min-remove coil packs
20min-remove stock plugs and instal new ones.
30-45min-reassamble the plenums and strut bar

 

https://my350z.com/forum/engine-drivetrain-and-forced-induction-diy/319012-diy-spark-plugs-change-huge-pics.html
^ Have you looked at my DIY?

You don't have to remove the plenum, but it makes it easier. Also, once you get used to uninstalling and installing these things (after a while, it becomes second nature), it really doesn't consume that much time.

 

there was no need to remove the plenums.

 

This blinker fluid drain & fill proces is best if left to the NiSSan service pros, especially if you are going to be using the JDM 30 weight blinker fluid. While I am always excited to see a owner doing the service work on their own vehicle. I personally have had to find the threshold of my expertise the hard way while rotating the 30 weight blinker fluid. Besides the specialized tools and technical support required, most mechanically inclined owners leave this to the qualified NiSSan stealerships of their choice.

Your results may vary

 

I agree...no need to remove the plenums...just did mine last week....im not very mechanically inclined so it took me 1 1/2 hours plus 2 beers....better than $250 the dealer chargers for the job....Fcking stealerships!

 

is that what they really charge? damn thieves. Glad you did it yourself.

 

Yeah man me too...felt so good just knowing the stealerships wasn't going to stick a broomstick in my butt! And found out how to do it in the DIY section...this site is so awesome! so much info!

 

didn't you also change the 03 air in your tires with 08 ?