2012 sierra Denali. Just installed a set of kooks 1 7/8 headers. Headers fit great just one little issue. Cyl 3 spark plug wire hits the tube. Anyone else have this problem? Run a different wire or let it hit? Thanks

 

try DEI heat wrapping if you let it hit the header will melt the wire

 

Same thing happened to me. I bought a set of taylor wires instead of the dei wrap. My build thread shows before and after.

 

i run insulated sleeves on all my wires

 

**** I forgot about that wrap and they also make the sleeve. The wire is very tight on the header right there but I give it a try. If it won't fit do any of the cars have a 90 degree factory wire that will work?

 

Thanks for the info guys. Hey vette do you have a link to your build. Thanks

 

I didnt like the contact even if I were to wrap the factory wire. The new ones dont touch at all and havent shown any sign of needing insulation.
https://www.performancetrucks.net/fo...s-road-531173/

 

Cool thanks for the info vette. Nice truck btw. Time to go order a set and may buy the sleeves just for the extra protection.

 

Same issue. I just let it touch.