Should I buy these 3'' pipes or see if the exhaust shop could make something up for me? http://www.4wheelparts.com/Performance-Parts/Dynomax-Exhaust-Intermediate-Pipes.aspx?t_c=74&t_s=49&t_pt=5057&t_pl=101030&Yea r=1994&Make=CHEVROLET&Model=CAMARO+Z28&Engine=5.7L +V8+350+CID+GAS