Hello all I just recently purchased a Greddy SP2 catback exhaust with no hardware and wondering what I will need to complete the install can anyone help me. I believe I will need a 3" doughnut gasket, possible new bolts for the midpipe to catback pipe. Now this is where I am slightly confused. The connection of the muffler to the pip that comes as part of the catback system this is where I will need that 3" doughnut correct but in terms of nuts and bolts what should I use here? If anyone could help me with my list for my trip to autozone that would be greatly appreciated. My car is lowered and it seems to be a pain to get jacks under the car and my jackplate is rather small to fit on the trailing are so I tried the plywood board but I dont have enough clearance would using ramps do the trick?

 

I have an Agency Power catback... but the installation is the same.
I just reused the gasket and bolts... everything worked fine. If this is the first time taking the catback off... I don't see any problem with reusing it.

 

oops... I just reread your post. I didn't require any additional purchases connecting the two catback items together... what I referred to was the connection to the cat pipe. But you might want to wait and hear from someone here who actually has installed the Greddy SP2.

 

The parts you don't have is the gasket in the photo & two nuts, washers & bolts. That goes in-between the mufflers & pipe. The bolts can be found anyplace and the gasket is also something you can find at an auto parts store.

 

My hero off to the auto parts store. so 2.5 inch gasket and some sort of nuts and bolts from autoparts place.

 

I would get SS hardware. My 1st SP2 had 70,000 miles on it when I had to remove it and the hardware Greddy included was rusted. If you have problems finding a gasket I have an extra one I can send you. The thread below might also be of help.
https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/how-install-greddy-exhaust-help-please%7E-73142/