what size exsost would i get the most hp out of my 3.9L v6

 

no. 91-96 fenders and hood will fit your truck.

 

i thout 96 was the frist year for the new stile and thank you for the ancer

 

kinda the start of the 97s were actually built during 96 the sticker on the jamb may show a build date during 96 but if after July of a given year the truck is actually considered to be the next model year if that makes sense;
you need to work on your English and your spelling... I ain't an expert either but.... wow!

 

what size exsost would i get the most hp out of my 3.9L v6

 

For the V6 2.5in pipe is good. Where are you from?