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Header help

1K views 8 replies 8 participants last post by  Jrozar 
#1 ·
I want to get a header for my 4.2l any thoughts helpful tips anything at all ??
 
#6 ·
I ran a Borla header on my XJ 4.0 and really liked it. I did get replacement exhaust sections twice due to the hanger failing. They sent me a brand new one each time under warranty and I sent the broken one back in the same box. I unfortunately had to go with a cheapo from e-pay when my YJ header cracked. With kids now I don't have a Borla budget. The cheap one has held up fine though.

BrokeJeepNut
 
#8 ·
I've been running Borla for over 10 years with no problem. California changed the rules on the placement of the 02 sensor and Borla sent me a new one no charge.
 
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