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Yep, definitely Thorley. Installed one when I got my car back in '99 or so, ended up selling it to another member here, sure wish I hadn't though. There is a definite difference in the way the car runs with the tri-Y Thorley header, it it noticeably peppier with it, and has a better growl to it, although that depends on the exhaust muffler one installs with it and whether they keep the cat, install a hi-flow cat or eliminate it altogether.

Even in that shape its still worth quite a bit of money, as long as there's no rust or holes or bent pipes. I'd say run it and see if you like it @LifeForLife , but keep the whole oem exhaust system stored away. Some day you'll be happy you have the oem system.
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