Oregoncoaststi

Continuing with getting my maintenance up to date, spark plugs are next on the list. Car is a 2003 C4S, with headers , exhaust, intake. What spark plugs should i be using? Should I do coil packs? Car has 67k miles. And last question, does the car have spark plug tubes ? In my research it appears that it doesn't, anyone confirm this? Thank you

meirschwartz

I used Bosch FGR5KQE0 with good resoles.
in fact, rock auto has them on sale now.
http://www.rockauto.com/RSS/vehiclef...l=en&html=true
i wouldn't change the coil packs unless you get CEL or you have visible cracks in them.

no spark plug tubes starting 02.

DBJoe996

Go here and use the coupon code rennlist for a discount http://www.warehouse33auto.com/parts/porsche

Jason will fix you up with exactly what you need. At 67K, and with OE coil packs, doing a spark plug change, well let me just say, I wish I had done my coils last spark plug change. If you are going in there, do it if you can afford it. They do get old and crack over time. There are upgraded coil packs available.
https://rennlist.com/forums/996-foru...oil-packs.html

Oregoncoaststi

Ok, thanks for the info and responses

Oregoncoaststi

Would i want to go colder heat range on the plugs with the mods the car has? Coming from a Subaru STI with exhaust and intake mods i used to use colder plugs, just wondering if the Porsche is the same