Downpipe Necessary???

[Cool Mr Steve]

Ok, with a ported manifold, ported Big 16g, ported o2 housing, and a 2.5" catback exhaust... How much is not having an aftermarket downpipe hurting my performance?

 

[dave99gst]

not very much. got a stock cat ? id' adress that fist if ya do.

 

[leet]

not very much. got a stock cat ? id' adress that fist if ya do.

How about he just saves up a little more and does both at once?

You'll notice it, that's for sure.