Are DEF Headers sold on Amazon for Cascadia 2010-17 any good?

Try Temu

 

Wish.com likely has more reliable parts. Keep in mind while there ARE ligit parts on amazon. A LOT of them are either chinese knockoffs that may or may not work, repackaged stolen goods, used parts cleaned up to look new and so on. Make #### sure to check the seller and never buy parts from anyone with less then several thousand sales. And never trust reviews. You can literally buy them hell all you need to do is sell an item thats worth like $.25 and swap the item discription later to get hundreds of verifed purchase reviews too.

 

You get what you paid for. Only reason I'd buy ANY electronic component off Amazon is if I needed a clip or something that isn't sold separately.

I've had terrible luck with aftermarket electronic parts in general that I only buy OEM now unless it's for something like my chainsaw or lawnmower.