Search found 3 matches
- 07 May 2012, 12:06
- Forum: C30, C70 2006+, S40 & V50 2004 ½ +
- Topic: 2007 S40 Spark Plugs
- Replies: 0
- Views: 472
2007 S40 Spark Plugs
How do you get to the spark plugs on the 2007 S40 2.4? I have read that you have to take the upper manifold off...?
- 01 May 2012, 17:36
- Forum: Performance, Tuning & Aftermarket
- Topic: Iridium Spark Plugs
- Replies: 7
- Views: 2134
Re: Iridium Spark Plugs
Thanks guys. I'll stick with the OEM spark plugs.
Sammy
Sammy
- 01 May 2012, 12:27
- Forum: Performance, Tuning & Aftermarket
- Topic: Iridium Spark Plugs
- Replies: 7
- Views: 2134
Iridium Spark Plugs
I am considering upgrading my 2007 S40 to iridium spark plugs from OEM. Will iridium plugs help performance? I have heard rumors that upgrading plugs will make your car run rough. What is the truth?