simple upgrade that works for Festivas ONLY

[ericsmith32]

Hmm look the same to me.

[PaulLehr]

wow those do look awfully similar in flow design overall. I'm only guessing that's the Festiva on top and Aspire on the bottom?

[Guest]

nah, I can see where it would look like the Festy has better flow..

the aspire mani.. looks like the outter runners are parrallel directly facing each other.. the Festiva 1 is angled..

[fastivaca]

I seem to recall that in Roger's project car write up on the old FMS site he said something about the Aspire exhaust manifolds having smaller diameter runners. I'll see if I can dig this up and post a quote.

[ericsmith32]

Actually is aspire is slightly angled, can't tell by the pic. If the festiva's manifold may be slightly more angled but not by much. I wonder even if the flow isn't quite the same if the weight compensates the difference between the two.

[darkdan]

I noticed no difference in anything when switching from the aspire manifold to the festy manifold.

But then again, one of the studs at the collector on my aspire manifold was broken and the exhaust leaked.

[ericsmith32]

Mines the same way, I was going to switch but I figure that wouldn't be a good test.