Do the cars have different resonators
#1
Burning Brakes
Thread Starter
Join Date: Sep 2003
Location: I live in Findlay Ohio
Posts: 773
Likes: 0
Received 0 Likes
on
0 Posts
Do the cars have different resonators
So much talk on the X pipe no cats, cats ,RMB and so on. Are ther different sized resonators for different years. I have an 87 S4 so what size do I have big or small?
Cliff 87 S 4
Cliff 87 S 4
#2
Burning Brakes
Cliff,
What I hear is the GT has smaller resonators (great sound). I don't know what year but JPTL has a '91GT and he has them and only an RMB. When I'm next to him all I can hear is his car. Some of the S4s may have them also. Michaelathome has them on his car w/RMB and his car sounds great. But I don't know what years have them. I'm sure someone will chime in and let you know.
What I hear is the GT has smaller resonators (great sound). I don't know what year but JPTL has a '91GT and he has them and only an RMB. When I'm next to him all I can hear is his car. Some of the S4s may have them also. Michaelathome has them on his car w/RMB and his car sounds great. But I don't know what years have them. I'm sure someone will chime in and let you know.
#3
Burning Brakes
Thread Starter
Join Date: Sep 2003
Location: I live in Findlay Ohio
Posts: 773
Likes: 0
Received 0 Likes
on
0 Posts
I think I found the answer, the 87 S4 has the bigger resonators. Reason I asked was with the X pipe no Cats and the RMB word on the list is it will be too loud. I will know soon enough.
Cliff 87 S 4
Cliff 87 S 4
#5
Addict
Rennlist Member
Rennlist Member
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,572
Received 1,691 Likes
on
1,099 Posts
Yup. '87 has the biggest resonators.
#6
My '87 with 928 Specialist X-pipe, cats, and stock muffler has a loud resonance below 2,000 RPM. Would smaller resonators move this resonance up to a higher RPM range?
#7
Inventor
Rennlist Member
Rennlist Member
86.5 and 87 have the same resonators (same part number).
Trending Topics
#8
Addict
Rennlist Member
Rennlist Member
At the moment, my GTS has stock exhaust/resonators 'cept for the RMB. Ever since I changed out to the RMB, the comments/compliments on the exhaust note have been constant! The cabin remains quiet. I will be changing out to an X with hi flo's. I almost don't want to do this for fear of losing the great sound. No matter what, I will keep the GTS resonators in the equation.
I too have heard that the GT's have a different resonator. I think Porsche tuned the exhaust systems for each major change to the engines over the later years.
Added: I just looked them all up in PET from 1986 to 1995 and this is the call out.
928 111 094 01 /R 86
928 111 093 02 /L 86
928 111 094 01 /R 87
928 111 093 01 /L 87
928 111 094 02 /R 88
928 111 094 02 /R 88 M637
928 111 093 03 /L 88
928 111 093 03 /L 88 M637
The above p/n's apply up to 1991
928 111 094 04 /R 92-95
928 111 093 04 /L 92-95
So there seems to be some kind of change
I too have heard that the GT's have a different resonator. I think Porsche tuned the exhaust systems for each major change to the engines over the later years.
Added: I just looked them all up in PET from 1986 to 1995 and this is the call out.
928 111 094 01 /R 86
928 111 093 02 /L 86
928 111 094 01 /R 87
928 111 093 01 /L 87
928 111 094 02 /R 88
928 111 094 02 /R 88 M637
928 111 093 03 /L 88
928 111 093 03 /L 88 M637
The above p/n's apply up to 1991
928 111 094 04 /R 92-95
928 111 093 04 /L 92-95
So there seems to be some kind of change
Last edited by 928ntslow; 01-18-2007 at 04:02 PM.
#11
Addict
Rennlist Member
Rennlist Member
Originally Posted by aggravation
Anyone have an approximate measurement on the smaller resonators?
#12
Burning Brakes
Join Date: Sep 2006
Location: Myrtle Beach, South Carolina
Posts: 1,203
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Vilhuer
Take 2" away from all dimension of large versions or thereabouts.
#14
Under the Lift
Lifetime Rennlist
Member
Lifetime Rennlist
Member
There it is again! Doesn't matter what it is from tensioners to water pumps to exhaust parts, Garth has got a bunch from different model years neatly arranged in side-by-side photos.
#15
Inventor
Rennlist Member
Rennlist Member
86.5-87 vs. 85-86 (hat tip Shane)