Will a 964 heat exchangers/muffler fit my 81 911SC
07-15-2003, 10:56 AM
#1
1st Gear
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Will a 964 heat exchangers/muffler fit my 81 911SC
Taken from a '90 Porsche 911 C2. Any idea?
My current one has leaks and is rusted all over. Can't afford SSIs but want some sort of performance gain (Again, not sure if the 964 ones are any better apart from not having leaks.) So kinda consider these 964 ones.
My current one has leaks and is rusted all over. Can't afford SSIs but want some sort of performance gain (Again, not sure if the 964 ones are any better apart from not having leaks.) So kinda consider these 964 ones.
07-17-2003, 05:20 AM
#3
Racer
Short answer yes, they will bolt to the engine
However the output from the cat is not a flange like on the 3.0 and 3.2 exchangers, it is a socket joint that fits to the rear 3.6 muffler, but the forward flange on the cat and the cross over tube flange are not the same as on the 3.2 or 3.0 L (if I remember correctly)so a little welding and swapping flanges may be necessary to get the 3.0L cat to mate to the 3.6 L heat exchangers and crossover tube or probably easier is to weld a flange to mate to the 3.0L muffler on the rear of the cat pipe.
The 3.6L heat exchangers also have a larger ID on the primary pipes than the 3.0L ones
Todd
However the output from the cat is not a flange like on the 3.0 and 3.2 exchangers, it is a socket joint that fits to the rear 3.6 muffler, but the forward flange on the cat and the cross over tube flange are not the same as on the 3.2 or 3.0 L (if I remember correctly)so a little welding and swapping flanges may be necessary to get the 3.0L cat to mate to the 3.6 L heat exchangers and crossover tube or probably easier is to weld a flange to mate to the 3.0L muffler on the rear of the cat pipe.
The 3.6L heat exchangers also have a larger ID on the primary pipes than the 3.0L ones
Todd
