Stugots879
Enthusiast
I have another set (Qty: 10) laying around if anyone needs them.
$40 shipped within the Conus.
$40 shipped within the Conus.
F/S: Bosch Platinum Spark Plugs (4428)
- Thread starter Stugots879
- Start date
Just for folks who don't know, the Bosch +4 plugs don't work very well with Vipers. They might last longer, but you're engine will probably be down on power and not run as smooth.
GLWS, but it might be better to just post these on craigslist and sell them there.
GLWS, but it might be better to just post these on craigslist and sell them there.
Stugots879
Enthusiast
Post your dyno sheets please and thank you for your expert advice.
Stugots879
Enthusiast
Bosch Platinum plugs are bad according to "Indy"
Stugots879
Enthusiast
Plugs sold to Indy!!
Thanks VCA!!
Thanks VCA!!
Last edited:
Stugots879
Enthusiast
you got me!
I had sold them on eBay...it was just a little sarcasm
Ron
Enthusiast
I had a +4 set in a 300M. One of the 4 electrodes fell off in cylinder #1 and resulted in a head that had to be removed, welded and machined. A little research found that I wasn't the only one and Bosch did not stand behind it.
No Bosch for me.
No Bosch for me.
So, for us noobs who don't know: what is the spark plug of choice when it comes to our beloved Vipers?
