If you already had a full exhaust and added G3's..
 

how much of a power increase did you notice afterward? I'm just wondering since at some point i'm going to get them. I know that the first mod obviously makes the biggest difference, and each one after that the power gain doesn't feel like as much.

Anyway... any experience with this?

I added my Berk HFCs as my first power adder, installing my G3 intakes a little while after and I noticed the car pulled noticeably harder in the top end. The car also seemed to be more responsive to throttle input but I could clearly feel solid gains from 3krpm on wards.

Yeah I could definitely feel the power difference when I put on my G3's after I already had my Berk exhaust. Was more responsive as well like Christian said.

ok that sounds good... i'm going to pick up a used set here at some point, but I wanted to see what kind of gain I would be able to feel from it. Hopefully not to to long Tony will have his set made and out and we'll see how those do in comparison. I thought many times about the R2C's, and they do well on the 37's, but as i've said before... the G37's front is much more open where the intakes are, and I just don't think they'd get the same kind of power on our Z's.

Anyone have a dyno for this? ive been curious for a while...

That's what I did, just picked up a set for $300 shipped and they work perfectly fine! :happydance:

i put g3's on after i had my f.i exhaust and i noticed a slight deeper growl at around 3-4k rpm. they are known to produce power mainly at the top end so thats what you should except.

Yeah, i'm going to add those and a set of pulleys, tune it and that will be it!

I did the opposite...

G3's before exhaust and I was impressed.

Added a CBE and the power came like whoa! Driving a stock Z is depressing to me now.

At first I had FI Long Tubes and custom straight piping to the stock muffler with k&n drop in filters plus an Uprev tune. Afterward I switched to a real catback and got the Meisterschaft exhaust. I dynoed after, now I know the tune was set for the straight pipes but the ca was suffocating big time. After adding Injen Long Tubes I got good power through the whole powerband and probably will get more once I get a retune.

looked into the Injens, but it's just to much water around here for that... especially where I am living now there are A LOT of low spots around here.

Yeah I wouldn't have got them save for the kick *** deal from a forum member and the fact that its a weekend warrior.

I've heard good things about them... but the whole water thing is to much.

B1ades has got the Stillen G3 and they look, sound and feel amazing. I must be honest I wasn't expecting it when he hit the gas, huge difference over the stock. The injens sit lower than the Stillens.

wasn't takeda making a new long tube style intake that had a single larger filter? Whatever happened to that?

You still gotta take it for a spin bro. :tup:

Probably slower and not as loud as your car, but you can still hear the difference from the intakes. :tup:

It sounded AWESOME today, I wasn't expecting that for sure :tup:

I took my car to Uprev for a tune. First with just the F.I. LTH and F.I. CBE and got 301hp/246tq then with the car still on the dyno I installed the G3's and got 310hp/252tq.

That's pretty good, especially after already having the FI LTH+CBE.

yeah, pretty good... I would honestly have guessed more with your set-up, but all dynos are different, temperatures, etc, etc.

Would/did anyone get a tune after just the gen3? Or would it be better to wait until you got more mods?

It would be a waste of money to get a tune with just intakes... this car seems to respond very well to mods. I am going to get all the NA power mods and then get the car tuned myself. It's not cheap to get a tune so I want to make it count.

This is what I'm doing as well.

Intake - Needed (Have K&N's and MAF tubes right now, waiting for full intake)
Pulleys - Check
Oil Cooler - Check
Headers - Check
Exhaust - Check

Last mod needed before tune. :tup:

Yeah, I need to get an oil cooler, but since I don't track the car, i'm not going to worry to much about it right now... just getting on the car here and there is fine for me... when I can afford it i'll go with the Z1 25 row cooler.

310 is after installing intake and Uprev tune? Or 310 is after intake, no tune?

In my opinion as well as others, I would get the car tuned after installing G3 intakes. When I had my car tuned, the stock tune with G3s would run leaner than I am comfortable with and there was also some detonation which is something others have experienced as well.

After the tune, my A/F ratio was nice and safe across the board, the car ran smoother and I picked up another 5whp.

Actually it was 310 for both. Without the tune it hit 310 but the A/F was way lean. After the tune it was 310 but the A/F was back where it was supposed to be. So the tune didnt give me anymore hp but did make the A/F safe and made the car run MUCH smoother but. We did 17 pulls on the dyno so the car was pretty hot by the time Jared did the final adjustments.

Hard to see but:
PINK line is LTH/CBE only with no tune just the way I drove it in.
BLUE line is LTH/CBE/G3 with no tune.
RED line is LTH/CBE/G3/Tune


http://i102.photobucket.com/albums/m...NewImage-3.jpg

yea that right around where I would expect them to be after the exhaust mods. good numbers but to me, not worth the price when compared to the gains from the post MAF tubes, that someone on here dyno'd for an 8 hp difference, with the dry flow filters...

Yeah, but 8 whp is a pretty decent gain man. I mean is it worth it vs a couple hundred? Maybe not... is it worth it if you can find some G3's for 300 or so dollars? IMO yes.

yes, i agree... sorry wasnt trying to be the downer of the thread lol

no, I wasn't insinuating that at all. I have multiple times thought of doing the PMT's with the drop ins. Part of me REALLY wants to buy the R2C intakes, and even though it got equal power gains on a G37, there is not dyno info on them with our cars and as i've said IMO the 37's just much more open in the front end which is why it would get more air.

This is what I thought as well but I had concerns with what Christian370z said below...

Thats what my plan was as well.

This was my main concern will the engine be safe as a daily driver with the G3's and no tune until I get the other mods mentioned about and tune it which could be months???

Who has had any issues or detontation running the G3's with no tune?

How long have most of you guys been riding your Z's with G3's and no tune?

It should be ok. I know a lot of people on here don't get a tune until they have an intake, exhaust, and HFC/Test Pipe. That's my plan, got the first 2 done and just need the last before I get tuned. Haven't had any issues yet.

I drove mine without a tune for a couple of weeks. The first pull on the dyno, both my tuner (Seb at SpecialtyZ) and I could hear/feel some detonation especially when looking at the A/F and power curves. I feel that everyone should get a tune after installing G3s, but I did it because I wanted to have 100% confidence in my car and having the chance of losing an engine over a couple hundred dollar tune seemed a bit silly.


I also gained at peak 5whp/14ftlbs after the tune, but I gained so much more under the curve especially with torque.

Get a tune, but wait to get all your bolt ons otherwise you'll have to get a retune. 310whp seems a little low but its probably a lower reading dynojet.

ill have to just buy the parts and not put em on i guess lol

Get them all... unhook the battery, put them on over a few days... drive right to the tuner... done! lol

Ya but it will suck to watch the G3's sit in the box until i get the hfc and headers... would you guys keep the nismo exhaust or switch it out???

I'm pretty sure some aftermarket exhaust give more gains than the Nismo exhaust, and they sound better to. Up to you whether its worth it to spend the extra money on an aftermarket one.

I'd take it off and sell it for an F.I. or wait for Motordynes new exhaust... it shouldn't be to much longer. I guess he has one that will fit the Nismo?