Ive been looking to get a true dual exhaust for my TT set up for a while now. I want something diffrent that wont be EXTREMELY loud but will still flow well. while everyone agrees that dual 3" is over kill and will flow PLENTY for a 600+whp I dont think I need that since i plan to produce sub 600whp numbers. 500-550 whp is more than enough for me here in so cal.

So the Greddy EVO TT is a true dual system with resonators and mufflers, and some nice titanium tips. the piping is dual 70MM (~2.75in) so I think it will be more than enough flow for me.

I want to couple this to a set of APS 3.5 in downpipes/testpipes, which I hope are not to raspy, i really hate the rasp.

Well if anyone out there has this exhaust please let me know how you like it and what you think of it.

Thanks!

-George

 

I would just get one of the APS setups. I liked my greddy EVO2 for N/A, but for FI, it didn't flow. The greddy TT seems to be somewhat of a compromise between the 2.5 and 3" exhausts on the market, but that said, I am stuck on APS quality. The greddy setup is nice, but compare the rolled edges on the resonator of the greddy setup and the thinner flanges to the resonators and flanges on the APS setups.

 

EVOTT ftw. It looks good, its not LOUD like 3' exhausts and its pretty nice of a design. You probably will rasp w/ the 3.5' straight pipes, unless you have an X pipe in there. Im not sure if EVOTT has an X pipe. Its a nice *** exhaust though

 

ftw = ??? Also with an X pipe the raspiness will be elminated? if thats so I might have to go with one of the SVRTech exhaust systems instead.

 

I have it. Not installed yet though. Sat in a APS TT Z with it...sounds really good for a high flowing exhaust...not too loud like the 3".

 

X pipe will increase your trq in the mid range. By a lot.. I saw a dyno chart, 90trq gain in the midrange, but he was running JWT700 bb turbos
Listen to my video. This is NA (MUCH more prone to rasp.) Im running 2.5' straight thru w/ straight pipes.


No rasp. Linkie:

https://my350z.com/forum/videos/215643-cool-video-of-my-car.html

This is the same car w/ APS 2.5 w/ straight pipes.
http://videos.streetfire.net/search/...d02cbea5cc.htm

Note the insane rasp :-D You shoul'dve heard it at WOT, its so bad lol.

 

Is this the SVR exhaust you are reffering too? also what would be the draw backs of a X pipe design, basically if it is so beneficial just wondering why other manufactures arent make them.

 

The X pipe adds cost. I have the SVRT 2.5 and it flows. If the Greddy dosen't have a X or H pipe, I for sure would add one.

 

Cost, its expensive to make. Benafits..if properly designed.. big HP boost, less drone, big torque boost, quieter, no decel poping. Most american cars use an X pipe. Its pretty much proven. Stillen also uses it, and thats the reason it gives the most HP and torque NA, as well as being heavy since a lot of reinforcements are required. SVRtech (scotts) exhaust had noice welds on the X pipe. I wish I took pictures, but its nicely made. IMsolutiosn also makes one, but I dont like the mufflers or resonators they use. Aeroturbine FTW! (ftw= for the win!)

 

word of warning, the svrtech system is loud and deep as eff.. If you want quiet, get the evoTT.

 

Yes, loud, deep. Not for the faint of heart. Not stealth.

 

I'm definitely leaning toward this exhaust, I too wonder how it would sound with the APS 3.5s.

 

You cant use the SVRTech exhaust w/ 3.5' APS pipes. It comes w/ pipes attatched at an angle thats cleaner than the APS setup or any test pipe setup. If you get the 3' exhaust, you get a 3' down pipe.
Its angled differently so the greatest angle you get is 25 degrees or something like that. I can look down my exhaust and almost make out the X pipe its that straight.

 

i am about to put one on my car for sure, it does have a H pipe and the whole exhaust weighs right over 50 pounds...

the EVO tt will flow fine for anything you throw at it, remember, the people saying you HAVE to have the 3inch are usually selling them to you. the EVO TT is hundreds less and will work just fine, i will be running over 20 psi here in about 3 weeks and try to push its limits.

i was running 13.5 psi making 470 whp with a really bad slipping clutch with a SINGLE tanabe 3 inch with no problems.


i have a few of them sitting around here new in box, pm me if interested...

 

Best of both worlds would be the EVOTT w/ the H pipe switched out for an X pipe. I like the evott exhaust quite a bit

 

Ok so now lets figure out how we can take the EVO TT exhaust and adapt a X pipe to it.

This is what I want:

APS 3.5in Down pipes

Greddy EVOTT exhaust with custom X pipe.

Where to place it? how to do it?

Also any more pics of EVOTT on car?

Thanks!

-George

 

Try to place it where the H pipe is. You want it to be there because it'll keep the pressure dynamics of the exhaust. Be wary, a custom X piep is expensive. It takes a whole day to make an X pipe custom.

 

check summit for xpipes, the main thing is that they will fit the Greddy system. How far apart are the two pipes where the H pipe is?

 

that was my plan, i want to take out the H pipe with resonators because that piece is actually the only part thats heavy, i dont care about how loud it is so i was going to cut it all out and put in a big X pipe.

it would be simple to do and i guarantee i could get it done for less than $100 if it was off the car.


i will let you know in a couple days, i will drop off my H pipe section to have it done....

 

The Greddy EVO TT(with H-pipe) appears to be well-made, but really poorly packaged. I was mistakenly sent a G35 exhaust the first time, (it was scratched, too), and a week later the replacement arrived with one of the highly polished mufflers looking like it was attacked with a piece of angle-iron. My car was on the lift for SIX HOURS while I talked to my Vendor and they talked to Greddy. We emailed digital photos of the damaged exhaust and the undamaged shipping cartons and they still couldn't get back to me in a timely fashion. They don't use foam or cardboard separators in their boxes.
Until they learn how to protect the contents of their boxes, I'd stay away from them... I suggested installing the system with the damaged muffler, and they could send me an undamaged one to swap-out and return. No dice.
They want to handle it like a shipping claim. I'm still waiting to see how Greddys' customer service department handles this.
I thought two weeks ago I'd be posting how good it sounded