Originally Posted by johnracer
They'll look cool and sound cool but they'll almost certainly slow it down a bunch. I tried some on my fed and they slowed it by over a tenth....not worth it imo unless you're blown or class rules require it.
Johnny
X2,
They look cool as hell but they'll slow you down one to two tenths over a good set of headers on a normally asperated engine. Been there and done that.
Zip.