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R/T upgrades?

1K views 4 replies 4 participants last post by  jodenton 
#1 ·
Hello, I have a 2007 dodge caliber R/T and I'm trying to get as much power as I can into the car without straining anything. I was curious if anyone had any suggestions? I have a cold air intake already but that's it. I'm about to replace the catalic converter because it's rattling really bad and I'm losing power up hills so if you guys have a suggestion for that as well I would appreciate it. And the last thing, what kind of spark plugs do you use for your calibers? Trying to figure out the best one for my car
Thanks for the help guys.
 
#3 · (Edited)
You could get headers and cat back exhaust, pretty much all there is to do.
 
#4 · (Edited)
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