Review on ECCPP Ignition Coil Pack Set of 5 Compatible with Volvo V70 C70 S60 S70 XC70 XC90, Replaces OE Part Numbers UF341 and 5C1320 by Bruce Marable

And my car has been shaking a lot since it was installed. :) Firstly, the machine ran rough immediately after installation, like when I lost 2 coils. Being brand new I figured they couldn't be bad anymore so now I have another problem. I drove about a mile and it ran rougher until it stalled and I couldn't start the car. It turned out that a coil in the case had somehow melted and cracked, then there was a short circuit and the car's ignition fuse blew. See photos for comparison of usable and defective. The seller sent a replacement coil, I installed it and the car ran fine. On these machines, the machine works perfectly. better than the OEM coil packs. It seems to shake more under load than before (shifting, sometimes I load it out of laziness). But that's okay and tolerable, and I probably saved $200 on OEM parts. I would probably buy these again.