got greddy header, exhaust evo. what else do i need?

[sdsdsd]

Hey guys whats up just got my greddy header and greddy evo exhaust for my 98gs. What else will i need to install the exhaust, im going to keep the same catalytic converter for now. if someone has done a similar mod please give me some pointers before i run off and change it.
sdsdsd

 

[KachurRacing]

new plugs and wires......

how big do you want to go?

 

[sdsdsd]

well i have an aem CAI intake so far, and some ngk spark plugs didnt get the wires yet. i wanted to put the exhaust on first. im not sure what my hp is now, shouldnt be much should be around stock b/c the intake i dont think adds hp maybe a couple, even though i noticed a difference. but i want to install the header and exhaust now. i was asking about tips for installing the header and exhaust, like what type of gasket i should get for the header or if there is anything i should be carefull about when installing the exhaust system. and i am giong to keep my stock catalitic converter for now, maybe go with a high flow cat later
sdsdsd

 

[silvereclipse]

Just buy all new gaskets to save trouble for possible future leaks. I would recommend taking it to an exhaust shop to install it, i bet it wouldn't cost much.

 

[sdsdsd]

yeah i got someone getting me a gasket and some new bolts incase any break. Thanks for your help everyone just wanted to make sure i got everything and i am taking it to a shop my friend owns one hes gonna put it on for me.

 

[JWoodley]

I'd suggest liquid wrench and some air tools. Goodluck.

 

[Lovin Eclipse]

I did my Apexi N1 cat-back myself and only had a few minor problems like breakin a bolt and missing a hanger (i already had an aftermarket exhaust on my car when i bought it) but other than that it went realy smooth and i got a muffler shop to put a new bracket on for free

 

[sdsdsd]

Cool thanks guys for all the tips. im giong ot try to get it on this week if i get a chance.

sdsdsd

 

[XerxeS]

I would go with a 60mm throttlebody, port match the intake manifold to 60mm aswell, then an aftermarket intake system if you don't have on yet, and possibly a high flow catalyst. This will complete the system as a whole, remember the car is only as fast as its slowest part.

 

[blitzedeclipse]

I did the greddy headers and evo exhaust. I did 3" from the headers back. I would suggest NOT doing this. Your car will be slower than it is now if you can belive that.

 

[sdsdsd]

well i got the stuff now cant really get rid of it. i have the greddy header and the evo exhaust is the one that is 60mm all way through and tip is 70mm if i remember correctly is that the one ur talking about?