Quote:
Originally Posted by Jamesp
So what is the list of mods? I have an 03.
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Intake: +20hp to 25hp depending if you go full intake mod.
Exhaust: +15hp cats on headers, cat delete pipes and a proper muffler.
UDP: +5hp
Tune: +15hp
On the low side 55hp increase the 2003 Boxster S 258hp = 313hp.