Right now im running stock internals greddy twin turbo. i really wanna run a single exhaust. but restricts flow. even with a custom but still wont flow like a dual. so i just need some suggestions.

 

i'm not FI yet but i hear the greddy evo tt is the best exhaust for FI...

 

why you want to run a single?

 

you cant go wrong with APS 3" or Evo TT, they are the best in the market IMO.

 

duals sound a little raspy in comparison to single. if i go single its gonna be 4" inlet but the thing is finding one. even at that 4" isnt as much flow as 2 3 or 3.5" inlets. but idk. need some opinions. anyone running dual carbon ti?

 

hey man, we tried to run a single 3 inch for fun to see what it would do and it killed the power for sure. if you go with any of the true duals you will be fine. Turbos take all the rasp out of the equation...


i would suggest the AAM 3 inch downpipes and 3 inch exhaust if you want a deep sound. or APS if you can find it..

 

EvoTT is one of the best, is not terribly loud, like the APS 3 incher, or AAM 3 incher. Duals really are best for twins.

 

i kind of have the same deal but i have a aps single turbo. The piping is 3.5" but my exhaust is only 3. I want to switch to a single setup. what are my options and what would work best. I have a helix pipe right now

 

I don't think I want to know how hard it would be to hang a 4" exaust on a Z. Can't be pretty..

 

well i guess its between the greddy tt and the aps. price wise greddy has the win. anyone got piping diameters for both systems? and if any vendors wanna gimme a quote shipped to 96789 ;-).

 

i believe its 2.75" but i could be wrong...

 

which system is that for? i think thats the greddy piping diameter. correct me if im wrong.

 

for the greddy..i'm not sure on the other one

 

APS is 3", greddy is 2.75"

 

is it worth the extra 400 for .25" more? hmm

 

Greddy Evo TT

 

My opinion is no. I don't think you are going to make any more considerable power by having the APS. Maybe 5-7 more depending on the tune. The biggest flow upgrades are going to be your Cat's and the 2.25 downpipe adapter that greddy uses.

To me, I'd rather have the quieter exhuast for every day use then the APS and maybe make a little more power. I went with the evoTT and then did the dump pipes, so when I hammer it...it's loud, otherwise normal driving sound is perfect.

 

I have greddy evo tt and it's quiet

 

Get a single + cutouts and an appropriate tune for open/closed. That way you can even have a normal 3" single exhaust, and when open you'll have less restriction than any TD exhaust...

 

i have a single 3" on my greddy TT and it's quiter than stock, power is still at 400 on 8psi so not to down in power, i just bought some electric cutouts and am going to install it so i can run open piping for any kind of highway runs or racing. question to tuners!! do i need to have the car tuned when i flip the switch to run open pipes on the exhaust?? i am still going to run a full length pipe all the way to the back of the car after the cutout just no mufflers. if so can it be only one tune for the open and closed and just have a happy medium