New Heat Spark Plug Ignition Wires Set 10.5mm Replacement for LSx LS1 LS2 LS3 LS6 LS7

Just put these on my 2000 Trans Am with a built ls1 with headers. Just a tad longer than perfect but not a problem as these fit more applications. They're very thick compared to stock and the Jegs Pow'r wires which were also nice but had straight plug boots where these are angles making these a lot better if you're running headers. I highly recommend them for quality and cost!

They work great

A nice look and works well

Really tight fit plugs, worked well with my long tubes that I thought I was goona have to get rid of. Tried two different other plugs and they all rubbed on the header, these cleared just fine. The part that goes onto the plug is slightly hard to push on because it’s at 90 degree but it all works out.

These fixed a problem on an LS6 with headers where it was melting the spark plug boots. The angled design cleared the header primaries perfectly and the length of these wires ensures they work with all coil configurations. The one negative I have on them is that the spark plug end was hard to get positively snapped onto the plugs. Only some of them had a confirming click to them, the others were vague and generally difficult to attach. I'm still not sure they are on the plugs securely. Time will tell. Otherwise, high quality for the price.

Kept burning straight style wires, and others were sketchy close to the exhaust. Love these, no more misfires.

Although this ignition wire set (Amazon pick!) and was recommended as a fit for my 2004 Chevy Corvette—I must inform you that this wire set should ‘not’ be recommended as a fit for the C5 Chevy Corvette (LS-1 engine) The wire boot that fits the spark plug, has an angle to it that makes it difficult to snap onto the spark plug. I literally had to re-order a different ignition wire set shortly after trying these. The quality of the wires themselves was not bad, just that the fit was poor on the plug-end with them popping off more than one time! Obviously causing misfires when that occurred.

I booth these after I had a plug wire burn through from improper fitment after I had customs headers installed. I tried multiple plug wires & none of them fit due to the minimal space behind the headers. These fit great & the quality is superb. Thicker gauge than standard plug wires. They all snapped into place on the spark plug & fit tight. I’m using them on a 5.3 swap in a 1957 GMC. I highly recommend.