Nick
on Wed, Apr 26 at 03:12PM
always content with the quality of BOSCH products, came pre- gapped which was a huge plus. 2005 XC70
Ken S
on Wed, Sep 14 at 08:55PM
Can't go wrong with Bosch. I twisted these in and the increase on the Butt Dyno was very noticeable. It shifts faster... not struggling to make the upper RPMs.
We'll see how the mileage does and if it eliminates the random mis-fire code.
These are well worth the price!
Edward Winslow
on Fri, Feb 26 at 04:35PM
not only does the car run better.After installing them we put the tester on it and some of the prior problems were corrected too. I will use this this site again. Thanks, Ed
ZachW
on Fri, Sep 20 at 08:52PM
They work as they should, great price also!
Perry
on Wed, Feb 15 at 03:27PM
Went with the bosch copper plugs when rebuilding my engine to avoid the expense of the genuine volvo plugs. I had heard good things on the forums about them. They were great at first but some months later I started getting misfires. I regapped the plugs once, then twice after getting misfires again. Ended up putting the original Genuine volvo plugs back in with unknown mileage and the misfires are gone. I would say these are a good option for high performance applications if changing your plugs with great frequency. If you want plugs that will last for years I would go with the Genuine Volvo kit.