Jay-rod427
Well-Known Member
Why would you? Lund base tune already has the rear O2's turned off, Headers don't need any tweaking in the fuel tables as they don't add the gobs of airflow everyone thinks they do. On my particular car I went cat deletes and all fuel trims and everything were spot on without revision. I know I know cat deletes are believed to not be the same as LTH, but a buddy with a 15 put on long tubes, same story different verse. Zero revision needed.How can you not need an adjustment for headers? Doesn't make much sense to me.
I believe op is waiting on the initial tune so yes he will need it with the headers just for the CEL from the cat delete.
OP don't know what's going on with you, but when I ordered mine a while back had the tuner in 4 days, and Lund first tune the next day. Any revisions since were less than 24 hrs.
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