Modification to the Stock Exhaust Manifold (EGR and O2)
I Cut and plugged the 3 EGR ports and moved the O2 Bung about 90 deg to the passenger side, as the orginal location of the O2 sensor was very close to the X-Member/frame, about 1/4" and if I had to services it, I would have had to disconnect the Exhaust pipes and remove the Manifold. (Not my way of doing things.. so Mod time)
I later mounted the stock CAT/Pipe to see how the would route and clear to give me a idea of what LT Headers would be for clearance.
Lot of room with the Stock Manifold. I will have to change a few of the Spark Plugs from the under side of the car.. no biggie, I do that anyway with my 84' Z28.
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