Chopface <thename_is_slick@yahoo.com> wrote in
news:ctob5t$g8b$1@news.doit.wisc.edu:

> Will an aftermarket 4-2-1 header give any better gas mileage than a
> stock manifold for a '91 Civic Si?


Not likely. Not so's you'd notice, anyway.


> it seems they
> can be had for pretty cheap.


Ever wonder why?


--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/