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Discussion Starter #1
hey i was wondering for all those that installed aftermarket headers or y pipe. what kinda gasket sealer/maker are you guys using to seal exhaust leaks.

i have a new set of oem exhaust manifold gasket for my headers im about to install and aftermarket header to y pipe gasket, should i use gasket sealer/maker on both gasket or jsut the header/ypipe gasket, and what kind to use??
 

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against the head just use the original ones over, or get new ones from lexus(oem). and most aftermarket header/racepipes come with a silver gasket, almost like a thick cardboard material. you can add high heat silicone to assure no leaks. i have done several installs on the is300, and i have only seen leaks when not using gaskets at all(lexluger from nj)
 

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yeah, thats good stuff. if you go to an auto store, they also make it in black and silver. put it on both sides of the gasket...also helsp gasket stay in place wile bolting it all up. it will smoke a little when first hot and burn slightly off. just make sure you get the high heat silicone. usually good til 1800 degrees or some shit like that
 

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hmmm the stuff in the link i post is good for 700 degrees, i thought exhaust gases reach like 2000 degrees or something?? also if i use it for the exhaust manifold gasket you thing it bight burn off inside and fuck up my o2 sensors?
 
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