[RideZX6R]

Originally Posted by pyroguy

The higher you pay for the headers the greater chance that they will bolt right in without issue. The reason for that is that those companies took longer to R&D their headers and have higher Q&C standards. Now that doesn't mean that a pair of $500 headers won't fit right the first time, it just means that more consistently the more expensive ones will fit without "massaging" them to fit. On my 5th gen I bought Kooks and they were incredibly easy to fit and had plenty of clearance in all directions. I would recommend them to anyone looking for a set of headers.

My experience was the more expensive headers were a harder fit, so I don't know I'd agree with your generalization.

I will say that when vehicles are new to the market, the more expensive brands will be available sooner, as those companies typically are larger and have more resources/time to throw at fitting a new product. Whereas the cheaper brands will usually come later, in some cases copying or reverse-engineering products already on the market and/or improving upon them (sometimes).

YMMV