<e36> RE: After Market Exhaust Install - Need Help

[Thi VanAusdal <tvanausdal@xxxxxxxxxxxxx>]

Francisco,

 The stock muffler has a two-stage setup that closes
that flap under certain vacuum conditions.  When 
the exhaust is restricted thus, it reduces noise and
increases bottom-end torque.  It would be a good idea
to plug this hose and tie it out of the way (duct or
electrical tape, tie-wrap, etc.) in case you ever put
on a OE muffler again (or a later owner wants to).

 - thi v.
'87 325is '87 325i '72 2002

> -----Original Message-----
> From: Garcia, Francisco [mailto:Francisco_Garcia@domain.elided]
> Sent: Tuesday, January 12, 1999 10:42 AM
> To: 'bmw-digest@domain.elided'
> Subject: After Market Exhaust Install - Need Help 
> 
> 
> Just installed a SuperSprint exhaust in my wife's '98 328iC. 
> When I removed
> the original exhaust it had a small vacuum hose that attached 
> to what looks
> like a close off valve on the right (if looking from the rear 
> of the car)
> exhaust tip. The SuperSprint did not have any where to attach 
> this hose. 
> What is this hose for? Do I need it? What should I do?
> Thanks,
> Francisco Garcia
> '98 BMW 328iC 
> 
> 

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