Alright guys I need some help. I'm running twin 67mm turbos, so I need an exhaust that will work for what I'm doing. To be honest in my case, no exhaust is probably better, but I need to have one for driving around town.

Options:

1. Dual 3 inch to single 4 inch back to dual 3 inch
2. Dual 3 inch all the way
3. Dual 3 inch to single 4inch, single exit

Any help would be appreciated. I'm leaning towards number 1, but wanted to get some insight of what some of you guys that have experience in this department would do.

Horsepower goal is 1300rwhp+, to give you an idea of what type of power the exhaust needs to handle.

Thanks in advance.
J

 

1 to me would at least be the quietest. But of course no one has seen much of a need to go bigger then dual 3"

 

Well another reason with going with number 1 would be the exhaust note. If you listen to a true dual GTR, they sound a lot like ours. However, when they are going to a single pipe back to duals, then it has a very unique sound. I'm wondering if that holds true with our Z. As far as power I think 1 or 2 would do the job, but that's why posted here to get other opinions.

Thanks for your response man.

 

didnt see the open dump option :shrug:

 

Valid point totalD. Never even looked at or into GTR exhaust but they do sound good. IV never liked dual 3" TD exhaust on Zs with TT

 

That's what I'm running now! LOL 18" of pipe of the turbo and turned down haha. LOUD!!!

Me neither to be honest, again another reason why I'm leaning on number 1. I may as well go with number 1 and call it a day. If I do, off the turbos will be stainless, the 4" single will be aluminum, then the rest of the exhaust will be stainless. Save some weight in the 5ft section of 4" piping over doing stainless we shall see.

Now to find someone close to weld it up for me, as my skills are not that great in that area.