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2004 GTO Dyno Tune with Video

3K views 14 replies 9 participants last post by  imp0ster 
#1 ·
04 GTO

Long Tubes - Homemade CAI - Magnaflow Catback - DTM Tune

Take a look at the air/fuel on the first pull. This is what happens when you port the maf and do not adjust the maf transfer function. SCARY LEAN!!!!!

Video of Final Dyno Pull

 
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#4 ·
Sounds good, at 36-37 seconds I heard a funny noise, and it sounded a little funny, maybe it is just me though.
 
#13 ·
I like the GT11 cam for the LSx family.
 
#14 ·
Tuned one of those a few years ago myself.
Picked up then dropped off.
Customer called when he got home and drove asking "what did you do?"
I was like WTF? Something wrong?
He said " when it hit 2nd up the onramp at WOT it went sideways!"
Lol,only had headers,intake and exhaust.
Great cars,LS1's really like to be tuned.
 
#15 ·
that WHP from a easy bolt on LS1 is pretty impressive. I never dynod my C5.
 
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