Throttle body Rubber gasket o ring thing. Between tbs and inlet trumpets
Throttle body Rubber gasket o-ring thing.
Fits between throttle bodies and inlet trumpets.
Stops the air leaks. So thats worth doing.
ID about 55mm ish. OD 86 ish.
748-998, ST2 st4, S4R. all those things ...
grab some injector trumpet o rings while youre there.
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