[owls_rayne]

I have two questions:
First, is that I'm deciding on buying a cast iron exhaust manifold an having the the runner bored and cleaned out for better for better flow I already have a turbo muffler on my normally aspirated '04 Pt Cruiser. From what I have read on this forum, headers don't have the longevity and are subject to cracking.

The second question is it possible to put a larger fuel injector body on the '04 PT Cruiser for more power and better fuel economy.

Owlsrayne