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If I modify, will my warranty still fly?

1K views 1 reply 1 participant last post by  Unregistered 
#1 ·
Smooth shift from 1st to 2st

To get a smooth shift, higher rpms or lower rpms? for a 4.0 5 sp. stang....
 
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#2 ·
jay's stang said:
I have a custom 06' 4.0 5 sp. stang. I luv her. She has plenty of go for a 6 cyl. But of course, if I can squeeze some more horses out of her, that would be cool. Any suggestions on what mods I can do, even though I a have 3 yr. warranty? Thanks a bunch!
Your Ford warranty is voided only if your modification causes a failure and it only voids that part affected.
 
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