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Discussion Starter · #1 ·
I've got an 83 zx turbo and just discovered that the exhaust has been altered for the worse. It looks stock to the cat (3 inch pipe to it), but the outlet which appears to be 2.5 inch has a very restrictive pipe welded to it. It looks like it's about 1.75 inch pipe to a universal silencer/muffler. Local muffler shops here give me the same crap about how you can't go bigger then stock.
What should I replace this with? Who makes it and what is the diameter and cost.
What was the original diameter and would it work when I raise the boost?
Finally, how can I raise the boost above stock? I want to intercool when I up the output.
Thanks much.
 
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