🔌 Bosch HR8LII33U OE Fine Wire Iridium Spark Plug (8 Pack) Review

Good spark plug for 2011 Chevy Suburban. I didn't notice any major changes, but I was just doing scheduled maintenance.

Compared to the autozone this was definitely worth the money. Saved a few bucks and had to wait a long time to find, actually delivered earlier than expected. Country kilometers like new.

Put them in a used 2010 Silverado I recently bought and I've absolutely noticed an increase in fuel economy and power. Already approvals, so they were ready to use immediately. You might have paid a little more for the name, but good forks can easily make a noticeable difference.

Great product and great price to replace my Avalanche 05 spark plugs. Joy oh joy to get rid of those pesky old ones. The wires were the worst. Do yourself a favor and use longer angle pliers to grip the metal shield. The plugs are plugged in and my hesitation disappears. couldn't be happier with forks. By the way, the pliers came from Harbor Freight and worked great.

I used these exact spark plugs on my 03 Silverado Z71 about 9 years ago. Installed over 110,000 km ago and still working. I recently bought new coils and wires, so thought I should change the spark plugs as well (didn't really have to). Fitted all new parts and started with a noticeable improvement in throttle response and acceleration. Still amazed at the results. No gaps were made in case anyone is interested, they are not needed with these iridium candles. Pictured are the old ones pulled…