I am in the process of starting to install my aps st kit. I have the stillen exhaust for now. My question is would it be ok to get a y pipe made to adapt to the stillen tru dual or would it be better with the aps st exhaust. Also is there another st exhaust that would work with this? Thanks for any info.

 

IMO sell it and get JIC st or somethign similar...

 

I run the greddy with my APS ST and it's fine. It's an easy modification to do. I just prefer the look of duals to a single exhaust.

 

better off buying the APS ST exhaust

 

lots of opinions. I like to look of the dual as well. Would there be a change in the performnace?

Sorry I searched and could not find any info on this subject.

 

they dont make it any longer. But we have seen similar results with a single path dual exit or straight single. Dont run a straight pipe everytime weve dynoed a APS ST car with open exhaust it has lost power over having some kind of exhaust on it.

 

do you have any exhaust that would work well even if it is a single?

 

if they don't make the exhaust any longer, I would find a good shop and have them fab up a custom setup.

 

So the stillen wont perform well? I dont really have a way to get the car to an exhaust shop bc i am in the process of doing the build.

 

You have no choice. The stillen will require custom fabrication to make it fit. Rather than chopping that exhaust up, sell it and have a custom one made

 

If you like the sound of the stillen exhaust then make up a reverse Y pipe and what ever is needed to make it work. As for the flow of the exhaust there is no problem with it at all. I have been running this exhaust for 32k with my aps TT with 3.5 TP's and X pipe removed. I've seen it up to 14psi with no restrictions at all. The plus side of it is it's quieter than a single 3" and flows well. In the end it's all up to you and what you want.

 

Of i decide to chop it up and just add a y pipe, should i not run a cat at all? Do you think this would make less power?

 

The stillen should flow fine, but as has been stated, will require custom fabrication to have it mate up properly.

I would not run a cat. You will definitely make less power with a cat in place in addtion to added thermal load on your motor

 

The aps St kit get rid of all the cats unless you have a shop weld one in. You can drive the car off the stock stuff if you wanted to just to get around then have a exhaust shop weld you something up.

 

I brought my car to a friends shop and he is going to fab up a 3" single exhaust which will run off of the 3 1/2" dp. I will prob use a apexi 3" muffler and sell my stillen exhaust.

 

little late but I'm running the aps 3' true dual with a reverse y and I like it. looks good and made 370rwhp@9psi.