Hey guys, looking at my options for new plugs on my 06 CTTS. Does anyone run the Bosch replacement spark plug instead of the Beru type?

http://www.autoatlanta.com/Porsche-9...2190-srch.html

The Bosch look way cheaper....dont want to void my warranty though.

 

Yes- I replaced the Beru plugs with the Bosch. Do the cross reference on the Bosch website for the compatible part number - the Bosch have 4 contacts versus the one on the Beru. I noticed no difference in performance- and I've has great results with Bosch products in the past. Those plugs are less than half the price of OEM and appeared to be of better quality.