New to tuners and may need some direction 4 my 2003 5.9 Dodge Durango plan on shorty Headers TRU dual exhaust--wondering if I will need 2 Cats for the O2 sensors or ??
Thanx
Jim
New to tuners and may need some direction 4 my 2003 5.9 Dodge Durango plan on shorty Headers TRU dual exhaust--wondering if I will need 2 Cats for the O2 sensors or ??
Thanx
Jim