test pipe diameter

[n240sxfnatic]

Originally Posted by Icy13

I really don't understand test pipes. Seriously, i know it is inexpensive performance but I don't really see it as that much benefit to have to deal with smogging hassles and generally driving a car that stinks.

Personally, I believe that you are not going to see a bottleneck from this as I believe 80mm and 3" are used interchangeably in labeling parts (I know, they aren't actually the same unit of measurement, but I think it is like buying sealed beam headlights that are ' 7" ' in diameter; they are in actuality like 6.9 inches but called 7" because that is a standard.

Still don't see the point though.... Really, not hating, but I dont get it. I mean, on a dd. Track I get completly.

Its cheap, thats the point. I bought one not for performance but due to my cat being rubbed thru.