Anyone ever successfully use a Jegs discount code?

famous bob said

I am constantly getting and e mails from jegs , always a code attached , but they never apply it to what I`m needing . Bunch of b.s. to me !

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Jeg's codes save me a lot of money.

I load up a cart - most recent was a Performer RPM 383 and parts to install it, $500. Then I enter the code and the website tells me it doesn't apply to the parts in my cart. So I close the window. Instant $500 saved.