Front pipe to mid pipe gasket?
 

can I reuse the front pipe to mid pipe gasket? after searching, I have seen people say reusing them is fine but also have people stating to replace them. I recently bought an MXP cat back and was just wondering if I need to go to the dealership to buy this donut gasket before installing my exhaust this weekend (the dealership is far away from me so that is why I don't want to go lol).

also, the MXP is just clamps at the connection points of the piping. should I use any liquid gasket to seal the pipes or just clamping down on the clamps would be fine?

You can usually reuse it... that joint isn't meant to be a perfect seal anyway. If it's starting to crumble and flake apart, then consider ordering a new one.

I only have 1800 miles on my car, so hopefully it's still in good condition lol. I'm guessing it's just a compress seal and no need for liquid gasket? might just knock it out tomorrow instead of waiting for the weekend.

The donut one? It should be ok. Since it's designed to wear/age unlike most gasket.

Having just fitted my cat-back I noticed a small leak. I ordered a new gasket anyway but the culprit of the leak appeared to be between the flat surface of the front pipe and the gasket so I used some copper gasket in there. No leak at all. I have had the join off at least 4 times on the original gasket though.

it's perfectly fine to reuse your gasket.
reason that people suggest to reuse gasket is that you might have a leak and you have to crawl down again and change gasket again. if you have lower mileage less than around 6,000 mileage, i would just reuse gasket. otherwise, i will spend some money to get new gasket from dealer

well, I installed the exhaust today and had no leaks at the front pipe and mid pipe connection. however, I did have exhaust leaks at the other connection points. the MXP exhaust uses clamps to clamp the exhaust and has slits going around the circumference of piping. the exhaust is leaking out of those slits. I was told there was no need to use liquid gasket on the connections so I didn't. guess they told me wrong lol. I will go back later and add the liquid gasket. it's just a pain in the ass, especially doing it solo haha

you can see the slits I'm talking about in this picture:
http://i4.photobucket.com/albums/y10...ps231dxwfq.jpg

and if you want to see my exhaust:
http://www.ft86club.com/forums/showp...9&postcount=35