Hey, I was about to hollow out my cat when some guy came up to me and told me that hollowing out my cat was dangerous because it will cause a rise in exhaust temp. ... I was like "What?"... anyway, although it doesnt make sense, is this remotely true? Second, are the paper gaskets on there reusable or do I need to replace them?

 

just do it. people do t all the time. hea s aricer. if he knew anything about rx7's he would know that they shoot out extreemly hot gasses to begin with.

 

No. There are also no paper gaskets on the exhaust. They are metal gaskets, and should be replaced whenever removed.

Keep in mind that really all you're going to accomplish is a minor power increase and a massive noise increase. You will also have to figure out your 5th and 6th ports.

 

Yes, I am already hip to that... thanks for the info.

 

Oh, well the gaskets on mine were paper... but I bought new gaskets from mazda... thanks for the help though/

 

The guy is an idiot.
If anything, your EGT's were DROP due to less restriction.
duh


-Ted