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View Full Version : WTB 90 ZR1 Exhaust w/Resonator #39399


S.hafsmo
12-15-2016, 03:04 PM
Currently looking for the center part of the ZR1 exhaust.
Can't buy the whole thing, as it's just to massive to ship over seas.
The part I'm looking for is #39399 on this drawing.

http://cdn3.volusion.com/ekutc.vrlsy/v/vspfiles/photos/categories/114.jpg

The most important bit is the one between the two mounts on each side of the center resonator (incl. the mounts), and a few inches in front of the forward mounts.

My resonator has been replaced with this:
http://cimg8.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/2000x1124/80-20161110_142947_4f89ad9ec427f0a52cf72ab48bce642cf8 a37c49.jpg

And I am not quite sure a Corsa would pass the inspection here in Norway.

Mr Blue
12-15-2016, 05:48 PM
Are you looking to maintain the stock 1990 exhaust system? If not the later 92-95 resonator offers better flow and more power. The internal pipe diameters are significantly larger.

David

S.hafsmo
12-15-2016, 07:42 PM
I'll probably get the Corsa at some point, so flow is not really that important.
Is the rest of the post 92 exhaust the same? If I cut my exhaust before and after this "modification", would a similar piece from a later exhaust fit?

Sent from my SM-N910F using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

Mr Blue
12-16-2016, 12:14 AM
Yes, the late resonator will mate to the earlier pipes. It does not need to be a ZR-1 resonator, any 92-96 resonator will be lower restriction.

S.hafsmo
12-16-2016, 07:37 AM
Interesting. Maybe I'll be able to acquire those parts on this side of the pond, if any post 92 stock exhaust resonator will do.

GOLDCYLON
12-16-2016, 10:42 AM
If you can find one a factory LT4 resonator was considered to have the best flow however those can only be found on 1996 LT4 equipped C4s

S.hafsmo
12-16-2016, 10:46 AM
Probably unlikely I'd find one. Lt1 resonator - maybe.

billschroeder5842
01-09-2017, 09:27 PM
I have a 93 resonator in great condition that will weld on perfectly. From my research Chevrolet used the same resonator with the 2 5/8 inside diameter for all LT1, LT4, LT5 applications from 92-96. PM me if you are insterested. Thanks!