Quickie.
Installing a new straight through exhaust on my Gu 3.0 with cat converter but no mufflers. will I need to retune my engine
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Quickie.
Installing a new straight through exhaust on my Gu 3.0 with cat converter but no mufflers. will I need to retune my engine
There really isn't anything you can tune on the 3.0l.
If you have a dawes and needle valve you might have to adjust those a little.