The intake manifold balance tube on the Z32 makes changing plugs a pain in the ass for the back two cyinders. The balance tube has to be removed to change the back two plugs. I am going to be designing block off plates with fittings tapped into it to install rubber hose that will clear the spark plug coils. Could also use braided line but that will get expensive and more work. The block off plates will be CNC machined out of aluminum and easily polished. I am doing this for my personal car. But if there is enough interests once I get the first one done . I might offer it as a production item. I am guessing the cost would be about $50 with the plates , fittings, hose. This is a mod to make changing plugs more convenient. Not really a bling factor unless you use fancy braided hose and fittings.
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