Re: Headers cause emissions changes, why?

[Mark Denovich <mark@domain.elided>]

Derek,

	If you can sneak them past the smog nazi's, go for it.  They definately 
give back some ground clearance and of course for the power.

	EBSpares in the UK is great to order from.  Total with shipping was about 
$700 and I had them in 3 days.

	The only caveat is that the installation is a bit of a pain.  The bolt 
holes for the #3 clyinder are about 1/8" off.   I elongated my holes to 
make them fit.   The other problem is that you won't be reusing the 
original bolts...  you'll need a selection of M8 bolts (some need to be 
quite short) due to clearance issues.   It took me the better part of a 
day to install mine on my Verde.   If I had these tips, I could have 
halved the install time.

	One more thing... if you were to install them sans cat (which I'm sure 
you wouldn't) the downpipes are about 1" too short.  Easy to fix, but 
again it took me a little while to figure that bit out.

	--Mark

Derek Ealy wrote:

> Last week I saw a cool article on Alfa Centro about some great looking
> headers for my car from some place in England. On top of adding a bit of
> power, and a cool sound they also give you a bit more ground clearance.
> As they are from England I'm sure they aren't legal here in sunny CA and
> it got me to wondering why is it that headers almost always will increase
> a car's emissions and make it fail our smog tests? I wouldn't think that
> changing the shape of the exhaust tubes in a way which adds power (which
> would seem to result from more efficient combustion) would raise the
> amount of bad stuff coming from our engines.
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided