Does anyone know if the 3.5L in the Axiom and Rodeo are the same engines in the 2004 Isuzus? Specifically looking to replace the Intermediate Pipe ( Y Pipe) , I am having a hard time finding these for the Rodeo 3.5L engine. Would the 3.2L use the same pipe? Also, I have been looking for a service manual for the 3.5 Rodeo, anyone know of any sites or store that would carry these, preferably in CD or PDF formats?

Regards,
Matt