The '75 and later 2nd gens all have the same space added to the passenger floor pan for the catalytic converter, so they are all in the same general location. Looking at the 350/305 intermediate pipe and tail pipe, they are the same part number as the 250 L6. However the Z28 has no parts in common with either, and the 2.25" exhaust pipes and the different catalytic converter number probably mean the Z28 cat-back would not fit the L6 catalytic converter and 2" head pipe. But if a Nova or Camaro owner fabricated a header pipe and used a larger Z28 cat (or eliminated it) they could use the stock Z28 system on back.
The parts for the L6 are:
44676 2" header pipe - NA
50012 catalytic converter - $91.79 (or 50013 $98.79?)
45757 2" intermediate pipe - $33.99
35336 2.25" clamp - $1.31
35183 muffler hanger - $5.62
21807 muffler - $58.79
35408 2" clamp - $0.93
43502 2" tailpipe - $20.79
Total $223.42 (w/ catalytic converter, but w/out header pipe)
Since my header pipe is already cut short, a replacement header pipe is unavailable, my catalytic converter is missing, and my shop has said they can give me a 2.5" single exhaust for less then $200; I'd rather just have my shop make up a 2.5" over trying to fabricate a connection between the stock header pipe and the stock cat-back.
Last edited by Lifeguard; 03/27/14 08:40 PM.
