For the guys that wanted the inside sound...
 

This is what the Stillen CAI, Z1 headers & test pipes with Litespeed exhaust setup sounds like on the inside. This car was modified by CIN Motorsports in Charlotte, NC. If any of you guys are in NC I highly recommend them. They are a top notch bunch that makes sure that it is done right. Please be gentle on the comments. Thank you...

there s before and after dyno with the headers on the car??

What???
Are you making a statement or asking a question?

LOL I paid $750 for a used set with z1 test pipes good deal yes, but insane deal? prob not. I am actually debating to install them for now.

well it's a great deal considering it's $895 for just the headers now not counting the TP

u can pick up used TP for nothing! just dont search the 350z forum! they come up for sale all the time on facebook!

well, i still don't want to have to swap my HFCs, so I'll wait and see what the deal is with the HR flange headers, the z1 HFCs they have paired up with the headers aren't resonated either

You may want to edit this post to reference your youtube username or something. Street racing posts usually get cleaned up by the mods. :tup:

Let me know if you decide to sell them in case I change my mind about getting DE HFCs. Fast Intentions does make some resonated ones for the DE, just pricey, FB me

I believe I read that z1 will be making some modifications tot he momentum design for the HR flange version. I wonder if it'll make much of a difference. Would be great if z1 could chime here and there with updates for us...

That would suck for guys like me that already was crazy enough to spend 1100 bucks to gain a whole 6hp.

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You installed the momentum headers and only gained 6hp? how about throughout the curve? Also, what mods did you have beforehand and was it tuned?

that's my issue right now, I was able to get a hook up on install $350 plus $750 what I paid..... and then go for a tune!

So whats the big deal with these headers....i mean compared to Fast Intentions?

Supposedly, people are saying they are good for 15-20 whp gains on top of existing breathing mods like HFCs and CBE, If this is true, I will be all over them. Waiting for more independent reviews as well as for z1 to release one with the HR flange.

Well, I know my headers work ;)

Please be aware that NO Street Racing videos are allowed and as such it was removed.

Please adhere to the Forum Rules.

Thank You

Thank You for advising, and it was also removed from your quoted post.

:)

Well, all I had was the Stillen 3 CAI and the dyno read 298. After installing the Z1 headers & test pipes, lightspeed exhaust and uprev & tune only 318. 90+ outside but from my view that is around about 5hp a piece. Now I'm just a simple country boy but I would say for over 3 grand that wasn't and isn't worth it. Still love the sound though. I'm new to all of this import stuff and so maybe there was more than I could see. Some of you guys know a lot but really Nissan wants to sale more cars than there needs to be more modding to do other than two types of headers, two types of CAI, I mean the only thing that I have seen that has options is the exhaust. I mean I realize that there is more than one or two products for each bolt on but seems to be only one that ever actually adds any hp. I mean if your a poor man like me and want something to terrorize street cars and run like hell I would say FI. If you are happy with a little extra hit and want something to sound different then this might be your route. I know some will say well if that's what you want is to mod then you should have bought a LS1 or blah blah blah but I love the look of all the Z cars and if I bought an import I wanted it to be a Z. Z are great cars and have one of the best communities I have ever seen on and off forums.

Sorry Trips/Admin I posted the only one of the inside of the cab I had to let'em have a listen. The other got ruined by me and my motor mouth woman talking. Might edit that one and post it later in another topic so don't make any others upset.. :) I'm learning!

That is somewhat disappointing. We're getting some pretty mixed reviews on these. Maybe they were too good to be true after all? If you got 298 from just the CAI, I would expect around 110 from the exhaust and TPs. For the headers to be making the types of numbers we're all hoping for, you'd have to be at at least 325 or so. My hopes are starting to become grounded, haha. Were the temps when you got your 298 also 90+ outside?

Yes, 298 was on a 90+ day also. I remember reading on these forums somewhere that you get the most out of your first mod. Then after the first then add 5hp for each other. Guess that would be about right. Think that's what it said. Maybe give or take a few words. ;-)

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Yeah, that's how it usually goes. Supposedly, these headers were supposed to be different though which is why your numbers are disappointing.

Looking back at it.
The LiteSpeed exhaust is light... And that's it, it ISN'T a power maker... No one really has proof and reports of that.

Also 98+ degrees in humid NC is probably what killed your dyno the most.


Again, all dynos read different, and you're looking for the CHANGE in HP, and on the same day preferably.
Also, changing that many parts at once really limits the way you can quantify which part gives you HP.



Lastly, this hype over these damn headers started with Mike, he got 342WHP with these headers and a Z1 intake manifold mod, which I do not believe Z1 has disclosed. What it really is, is shaving down the walls of the manifold to make them bigger. Also, god knows what tricky shít Z1 has done with their dyno or whatnot, (I don't mean to discredit them, just sayin'), but take it with a grain of salt... Also rear wheel weights will effect WHP numbers. So keep that in mind.

Having a hard time getting an uprev tune on my 2013 370z with the following mods

Stillen G3 CAI / Berk Test pipes / Stillen CBE

Stood all day trying to tune it ended up not being able to. sent it back to the programmers and they didn't find anything / was making 285 at the rear wheels before the uprev tune on the dyno on the last pull......Any ideas!!!!

Thinking of changing Test pipes to FI long tube Headers

I didn't know about their manifold. But yes, we need on z1 numbers which is why you and i are both waiting for some more reviews and dynos.

Just don't get a tune and drive...? That's a great option!
Besides that, find a different tuner

My gut feeling on the Z1 headers is that you're not going to see more hp over the FI LTH's. Think they are going to make about the some power. Someone may product more like Mike, but not everyone.

Well, my Momentums are going on whether I like it or not, there's no choice. And it seems like I'll be the only guy with bolt ons to give a real before/after with JUST the headers as the mod.

We may never know... Not many people are willing to go through putting headers on twice, lol

That may very well be true. What's the average hp gain diff between HFCs and LTH? If that's significant and these could net similar gains without losing cats, they could still be a nice alternative for poele who want LTH power without the smell and noise of going catless.

[QUOTE=DEpointfive0;2465895]Well, my Momentums are going on whether I like it or not, there's no choice. And it seems like I'll be the only guy with bolt ons to give a real before/after with JUST the headers as the mod.

When do you think it will happen? I am very interested in your results.

The only thing we can do is compare from one car to the next. Billybobby got this with that set up, and Bobbybilly got that with this set up. Until someone tries out both sets. We will never know for sure. ;)

Which is a pointless test

[QUOTE=brucelidat;2465900]Again, I have no idea, my car is in pieces... And waiting a valve head from Japan... Soooooo... Yeahhhh...

Oh, and... I will be testing before and after without a tune... So one less variable.


Lastly...... I'm probably going to drive about 1000 miles before I redyno it. So if the car is ready in a week, it will take me another 2 weeks to get back on the dyno

Oh yeah, you're the one with the motor dropped. Good luck, I am sure a lot of us are waiting for your results.

I fkin hate driving my car now. Sounds cool like 5% of the time. The rest of the time too loud or the rasp and drone sucks balls. Also a slight rattle is back now coming from the rear. So, after z1 headers and aam de test pipes nothing but rattle problem which is now back but im not even gettin it looked at because I want to take a **** on it rather than drive it anymore. Fkin hate my life now

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So what would you say most contributed to the sound? The headers or the test pipes? I've already purchased the headers, but I'm going with a HFC combo.

Try HFC's, could be rasping real bad from the test pipes. Maybe get DE flanges for the ones you already had.

Hate that Rasp
 

I have the same problem wish I would have researched it more, I have Berk test pipes with a Stillen CBE love the Stillen sound hate that rasp and rattle. Thinking of putting on FI LTH cost is holding me back hoping the will get rid of the rasp and rattle.

Sine the headers n test pipes were such a bummer..... hello 75 shot. If it blows up cares. Im already not happy and will buy something else. Peace

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