They do make a rear diffuser out of carbon fiber with the option to mold in that area. Cant remember the company off the top of my head, they just released it a few months back. The picture is doesn't show how close to the bumper it already is, optical illusion, but the bottom does hang low.

I cant find this website you speak of but I can show a picture of one on a 370z and if you look it has "2" pipes that mate to a F/I exhaust. I think you are looking at the kits for the DE's which do in fact use a single exhaust pipe..... I really hate going to this extent, especially since I spoke with sasha and the "pictures" are readily available on the internet if you just search. Now once you study these pictures, explain to me how this looks like it bolts to a factory exhaust, meaning that a single will work, and post the link where you found that it specifically states that it will work with factory. I could even go as far as posting this in ALL CAPS AS WELL TO GET THE POINT ACROSSSSSS!!!! I even drew in red arrows to clearly point to the 2 flanges, before those 2 flanges the driver side pipe catches the resurq from the wastegate, then the 2 pipes merge into one, which comes from the hot side of the turbine housing....

BP kit on a 370z with the F/I exhaust which it is designed soley for:
http://i123.photobucket.com/albums/o...psfc98e903.jpg

F/I exhaust on a 370z:
http://i123.photobucket.com/albums/o...pscc1afae0.jpg

Unless you find another exhaust that has the IDENTICAL FLANGE DESIGN AND PLACEMENT YOU WONT JUST BE ABLE TO BOLT A BP KIT UP TO YOUR EXHAUST WITHOUT MODIFICATION. Which can be done and I would recommend it be done to the exhaust not the kit or it will make it a tough resale when you part out.... Just sayin

One last picture just for effect:

Factory exhaust from 370z:
http://i123.photobucket.com/albums/o...psfb6a6c93.jpg

Go back and read the BP threads again. Sasha offers the kit for the FI exhaust as well as oem style exhaust.
http://i48.photobucket.com/albums/f2...psqm7ywxxd.jpg

When the hell did he start doing that? I spoke with him only a few months ago about it and said he didn't have any plans on that. I stand corrected and now I don't have to have a kit built down in Portland at PSI. Saves me time and trouble. I honestly haven't been keeping up with his stuff since he said he had no plans on doing anything besides the original design. This actually is great news to me!

Damn man, you went all out lol I didn't post in all caps. That was copied directly from his member page. Go to the BP member page and go to the last page of the visitors messages. All the info for the kit is right there.

Phil


Sent from my iPad using Tapatalk HD

600hp stock exhaust sleeper :happydance: :tup:

just for an update. i Replaced the y pipe with the soho y pipe as well. going to put the car on the dyne and then go back to stock to get some official numbers on this single

Damn this sounds good. Is the recommended ID of a single exit 3"?

thanks man. and I’m not to sure. from what i understood yes. the single makes great power and weighs like 15 lbs lol ill let you know official numbers very soon so you can compare to other cat backs. also I’m having a resonator installed soon so ill upload another video showing what kind of tone it will have then.

Great :tup:



BTW: It's time to change your rear tires.....

Can't wait for updatwa

sounds good

Thats not my Z, but im sure its hard not needing tires when hes making that kinda power lol

ill have exhaust numbers with factory tune on Saturday. All video :happydance:

thank you sir :tup:

Well guys it's on the dyno. Here's the results on stock map. Next week I'll get a baseline. But I'm happy as hell with the numbers

321rwhp 267lb/ft


Mods:
Soho y-pipe
Soho y back single exit exhaust

Stock intakes
Stock cats
Factory tune

41 whp gains just from cat back exhaust seems way too high. What dyno did you use?

Yeah, that's way too high for a z with a cat back. OP, what does a stock z put down on that dyno?

it was in a dynojet. And idk but I was standing right there when he put my car on the dyno. Those were the numbers! Lol

09 370z right before me made 333 and 278
Aam cold airs
Motor dyne manifold
Z1 headers and test pipes
AAM cat back
Tuned

2013 370z 335hp 282lbft
Fast intentions high flow cats
Fast intentions cat back
Injen cold airs
Tuned

08 G37s put down 316hp 2XXtq
Takeda cold airs
Z1 manifold
Belluga test pipes and cat back

I personally know a good bit of cars that've been on this dyno and it reads just like any other dynojet. I have it all on video if you guys want to see. I was impressed as well. I Bet nik at soho a car wash that there was no way I'd break 310 but he proved me wrong. Now I have to wash his Z lol

Yall jelly because my car broke 320 for 1250 bucks lololol jk jk. I'll get a baseline as well for you guys to know though. numbers were STD smoothing: 3

here are a few things to compare for you guys. same dyno

https://www.youtube.com/watch?v=OuS3b2lGyjc

https://www.youtube.com/watch?v=PYg-ofuBW9Y

Hey greg, that was you i was talking to today..... small world...

small world for sure haha… i used your car above^ these guys seem to think the dyno reads too high! what did you think about it today?


BTW I’ve got a few videos of your car with numbers and stuff if you want em! Could you feel it in the but dyno?

video of the car

https://www.youtube.com/watch?v=NCLp...ature=youtu.be

Yes it was very noticeable. I cannot wait to hit the dragstrip again? What city did you say had the qtr mile test n tune's? I can't believe zmaxx doesn't do them.

As for numbers i'd rather see SAE for mine rather than STD but its close enough prob 2-4% higher is my barely educated guess.

Yes i'd like the vids, what i shot with the phone wasn't very good.:mad:

my highest sae was 321whp, my baseline on std this morning was 319 or 319 so thats a direct compare for at least what my known baseline was on sae corrected so im ok with results.

A threw a light for the test pipes though so that'll need sorted at some point but otherwise great day.

Best way to validate the whp is the strip to a degree.

yea i hear ya on that lol the 1/4 mile is in rockingham. And i just looked at your map and you were at 319/237 std and left at 334/277 std. yea, i calculated it and its 3.4 percent high if you’re SAE was 321.

post your email and ill be sure to send you pics and vids that i took

Ok i sent you a private msg with my email.

Thx

Does anyone in here live near charlotte? looking for a stock 370z to put on that dyno to see what kind of numbers it reads. I dont feel like putting my stock **** back on lol ill pay for three dyno pulls on your BONE STOCK Z

Wonder about that dyno's age. Sounded like 4th gear so you're not reading higher than others that use 5th (we should all use 5th) but that run took a long time! I only use SAE but to calculate my STD I'm doing 321hp. my run takes 9 seconds, yours took 12. Something tells me someones dyno is way off cause 3 seconds on the street just to redline 4th would be a massacre. No offense here.

.

Wait I'm so confused now.

hey scott, let me clear things up haha i know this thread has turned into a cluster ****
First mod i purchased from soho motosports a while back was their rear section of the catback exhaust which uses the factory y-pipe. The first pull we did when it had no tune (factory) was in 4th gear (just to do a small pull then tighten down the straps again before fifth)

-it made 299.45rwhp and 24X lbft in 4th gear

Last week, I bought and installed their y-pipe replacing the factory POS y-pipe. strapped it down and did a 4th gear pull to compare to my last 4th gear pull. (this was a stock tune comparison)

- with y-pipe and y-back exhaust it made 313.4rwhp and 258.4lb/ft in 4th gear

So after that, nick did 3 5th gear pulls since 5th is 1:1. The video I posted was the last 5th gear pull we did of the day.

- with the exhaust and factory tune it made 320.46 rwhp and 269.09 lb ft (5th gear)

let me know if you have any other questions. as for the dyno being off I really don’t think so. they’ve had 3 annual dyno days there and nobody was reading high comparing to their previous dyno tunes.

ill ask nick for SAE numbers as well for a comparison. and SOMEONE FIND ME A STOCK Z lol

this is what i made 299 with in 4th gear

http://sohomotorsports.com/wp-conten...y-1024x349.jpg

then i added this piece and made 313 in 4th gear and 320 in 5th

http://i1083.photobucket.com/albums/...ps24f7311c.jpg

I counted 3 gear changes before WOT but if he was in 2nd then no I don't think anythings off. Also explains the 12 second run.

What soho exhaust do they make that works with turbos

i believe most of their cars run a full catless 3 inch. on davids 8XX rwhp G horsepower they’re using a full 3.5 inch. I dont work for soho or anything they’re just a local shop that has always done the work for me, my family, and friends. They’re stand up guys

just noticed that lol and yes he was in 2nd. I started the camera right after he switched gears. ill be sure to get you guys a baseline. i know soho wants one to so they can compare

The only thing that matters is the difference between runs with the different parts, but its true the setup on the dyno means a lot, as well as the correction weather etc...A true comparison would have been on the same day...so IMO that dyno reads high, but it does not really matter, congrats for breaking 320 whp for that amount of cash, took me a lot more and a tune from one of the best in the biz!

thanks Joe, i will do a baseline with my car and a stock Z on another day at the same time. I will settle this once and for all. no one else is running a single 3 inch exhaust so it may just be that it makes more power than a dual set up with 6 bends in it lol

heres a Z that made 312 with just a cat back I’m only 8hp above that
https://www.youtube.com/watch?v=ETDnW2tLows

Couple noob questions..

Can I get some pictures of the clearance in the rear? I know Tomei hangs low.

If I grab a Y Pipe and this catback, what's left with the exhaust to modify?

Is their any kits for the Z that has a single exit for the back? I was thinking this won't look bad with amuse.

NoLaKrewe,

as for clearance i think you’ll be fine. its tucked up very well and probably has the same amount of clearance as the factory exhaust.

Only thing left to modify or change would be the test pipes and headers. or you could just buy the rear section that bolts to the factory y-pipe if you’re just looking for sound or looks.

when it comes to kits I’m not sure whats out there. the amuse doesn’t have cutouts so i dont think it would look bad. Good luck sir!

Phil