well id do all those mods before you tune, your car will run fine with the other bolt ons but when you start to change cams and heads, its really time for a tune because the car wont run right w/o it...
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Boats and hos.
Current: 1999 Jeep Cherokee Sport 4.0L
Old: 1990 Firebird Formula WS6, 1991 Camaro RS, 1992 Nissan Stanza
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