Fx35 2003 Mods

Welcome! The least expensive, most bang for your buck performance mods are what I call the HOLY TRINITY:

Intake - Cold Air Intake, Plenum Spacer
Exhaust - Cat back exhaust, high flow cat/straight pipe
Tune - UpRev Osiris

This gives you 30-45 whp more.

Handling; BC coilovers or H&R Springs; but I prefer something with adjustable dampening so that you can make the ride more to your personal choice.
 
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