Anyone here that's FI have the Tomei Expreme Single Exhaust?
Curious on power in comparison to whatever you had before.
What Y Pipe are your running as well?

 

Bump

 

ask meanZ about his Tomei. He loved it but that thing fell apart like 3 times.

 

Exhaust is an exhaust. Really isn't going change much unless it's restritive and I assure you a 3" exhaust will be good for your needs. Worry about looks and sound.

 

Lol o its definitely a key part of the car. I have changed a couple and they matter when you get down to tuning a boosted car.

 

Brian has that exhaust on his turbo z think he uses the matching y pipe but you would be best to ask him or post in his build thread.
https://my350z.com/forum/exterior-an...ll-thread.html

 

he just changed the HKS knockoff he had and its not tuned... but really, I mean 3" diameter exhaust... end of story there...no restrictive points... of course he needs to keep the diameter coming out from the DP.....its not going to make a difference tuning unless you are changing exhaust diameters. If you just use 2 different 3" exhaust any tuning differences wont come from the exhaust but rather the multiple other conditions with the tune, timing, temp, fuel, weather, etc.

So besides diameter, the rest is just sound preferences... I personally think it sounds very similar to the JIC ti I used to have.

 

Haha... 600-700rwhp Supras using 3" exhausts and 350z guys are worried if a 3" will work for their needs...

 

OP shouldn't be.... its kind of insane question and I think many being polite here, for his turbo/goals 3" is plenty.....


I went with 4" myself...

 

Tomei TI is bigger than 3" ID. Close to 3.1" ID

 

Oh no. Now brian is going to be the measuring stick on here?

BTW he can't use a fawking Y pipe off the down pipe from a single turbo.

 

I thought it was twins.

I was just pointing on the direction of someone who has that exhaust who could give an opinion. Im sure he just wanted someone to relay the message of awesomeness before he dropped $1200 on a y pipe back or $1800 on the full cat back.

 

You guys need to realize there is alot more that goes into exhausts and making power than just pipe size...
Angles of bends... Where the pipe is larger or smaller at etc...
Look at Motordyne Tony's reply to "back pressure" aka the true thing scavenging... Alot of r&d goes into creating exhaust parts. Why do you think all the DE guys want a HR Y Pipe... Bc it flows better and has proven to create more power.

I was looking for real results and hard evidence on the exhaust making more power. Z1 has put the car on plenty of cars and say it makes more power but I've never seen it on a supercharged car which was my original question.

 

... the path is pretty straight forward and consistent on all the exhausts, no differently weird "catbacks"....minimal resonators, you already lost the CATs with nearly all turbo cars... so mostly weight, price, looks, sound is what you end up deciding... so when we say "3 inch" its because that's what its going to end up at the end...all other parameters being equal the differences in most "3 inch" exhaust on the Z are mostly your "butt dyno".

ALso, when we say "3" its the size of the piping of the exhaust, if there is a section where there is a kink or something that makes it go to 2.75" then that's what it would be call...you wont get that here...

IN addition, you are just going off on a tangent that Tony discussed about ~5-10hp different on N/A cars...when going turbo, this is different, and YOU WILL NOT USE A Y pipe... if you want to use a true DUAL for a single turbo setup, even the ebay "3inch" knockoffs have copied of the better version of collectors already...your concern there would be quality of welds, and pipe material...

Most of all the stuff you discussed I applies more towards N/A/SC, but ultimately we are talking about minimal gains in the case of N/A.... when going turbo, your focus is piping diameter....all "3" exhausts will take care of that.... If you start looking at other exhausts for n/a applications, or if you already have one, and don't want to give that away, then get a boost activated CUTOUT....

EDIT. I see you are supercharged, go with any single exist that's "3" and get any aftermarket Y pipe over the HR stock Y.
If you wanna drop some coin, go with ARC, or other n/a exhausts since you are supercharged, and its not like turbo.

 

LOL

other than how it sounds....or looking at the several videos on youtube for that same exhaust to check sound, what else is there to say that has not been said on the thread.... either way, its not like Brian tuned car(yet) with the new exhaust from the hks replica from before, and focus is more show than performance.

Anyways, particularly all the single exist 3" out there, they are all fairly similar, just like JIC there is the full titanium and the version with just the can in titanium and rest of pipe in SS, that's the 0.1"diff in diameter...Either way, it doesn't sound like he will be using a turbo large enough where that 0.1" would even make a difference.

EDIT.
HEs Supercharged...so he should threat it like N/A...if he goes JIC, he should go with the SS+Ti version...or if any true dual, get a decent aftermarket Y....just changing from 03 stock Y to HR Y....I mean... at least get an ebay version... ligther lol.

 

That hr y pipe is just as garbage as the 03, I had a thread a few months ago where I asked the diameters of the stock pipes because I was going to get a 2 1/2 inch duel setup but after getting the infoI decided that was over kill... I ended up getting a basically stock exhaust, but then found a borla duel for a good price used so ill go with that in the summer time.

My stock sized exhaust is rasptastic in the high rpms.

 

Ill just put that up for anyone interested.

 

Oh man bring out the pictures...