Stillen CAI and Invidia CBE
 

Just ordered the Stillen CAI and the Invidia CBE. They go in next week Will do before and after dyne pulls. Can't wait!

You'll be happy with them. Keep us posted.

I have the same setup. You'll love it!

Coaster, how is the sound? I heard that the invidia is a little loud. Also, I know that wot power will be much improved but how is the low and mid range power?

Definitely louder and deeper than stock, but not too loud. Stillen and Invidia are probably the quieter systems out there. At cruising speed, it is barely noticeably louder. It's louder when you gun it. Bluestyle55 has a good comparison video for stock+Gen3+Invidia posted here and on Youtube. Just search "Invidia db comparison". Like most exhausts, the most gains are at the top end. There is some low and mid range improvement but not proportional to the higher range. Once you finish your intake/exhaust upgrades an ECU tune will help improve the low and mid-range performance, amongst other things.

I definitely agree with this. It sounds a lot better imo. When you gas it, it's nice and deep. Otherwise, it sounds relatively tame. Bluestyle55's video helped a lot, as well as TROOPER's video. I think you'll love it. At times for me, I wished it was louder. Today though, the exhaust sounded perfect. Must be the cooler weather :-). Please post pre/post dynos when you get a chance. Congrats and good luck!

Thanks...I will check out the videos.

DS

Just checked the clips. Much nicer sound. Can't wait. Will post dyne results when done.

Yeah, I know you will. I was a bit hesitant at first, but after hearing my friend drive my car, as well as getting comments from friends, I am definitely happy! Can't wait to see dynos.

dyno stats
 

Installed the CBE (Invidia Gemini), CAI coming next week. Although the peak hp increase was only 7hp the minimum gains were at peak. Between 1700 and 3000rpm gains were between 10 and 25hp and 20-45 ftlbs! From 3000-7000rpm increase was a very steady 10-15hp and 10-15 ftlbs. Drivability is greatly improved. Low end difference is HUGE. The can now sings! WFO sound is incredible, no noticeable difference in steady state cruising with the top and windows up.

I am VERY satisfied with this CBE.

I will post the dyno stats once the CAI is in.

Thanks for the preliminary dyno results. It's good to see some objective numbers to back up the butt dyno.

Nice numbers. Can't wait to see the dynos.

In for dynos.

You'll love HFC with this exhaust!!! I smile each time I drive because of it!

Dyno results
 

Stillen CAI (G2) and Invidia CBE

Max HP +34.7 but substantial increases in area beneath the curve, lots of usable midrange and it sounds great (particularly with the top down)!

I can't get the image to show so please click here to see the dyno chart
http://www.the370z.com/members/dspho...vidia-cbe.html
http://www.pbase.com/dsphoto/image/129168308/medium

http://www.pbase.com/dsphoto/image/129168308/small
Tried to post the image again. Can anyone help me here? I put in the link to the photo wrapped in the [IMG] tags to no avail!

http://www.the370z.com/members/dspho...nvidia-cbe.jpg

Nice gains. Thanks for the dyno. Also, seems like the car rev'd passed 8k rpm?

wow just wow! makes me wanna order the STILLENS ASAP.

RPM calibration was not 100%. RPM cut on all pulls was 7500.

Coaster: thanks for putting up the chart. How did you do that? I'm a photographer and very experienced in digital imaging but could not make that work. Very frustrating.


DS

looks like stillen CAI gave you most of your gains. thx for sharing

was the bumper off when the stillens were dyno'd?

What generation stillen intakes

I opted for the G2 CAI so the bumper wasn't off. I elected to go for the reduced maintenance hassles. I think that the total gain is more evenly divided between the two bolt ons than the dyno results indicate. The improved pumping efficiency resultant from back pressure reductions on both sides allowed the engine to breath. Had I installed the CAI first and the CBE second the results would have been the opposite. Stillen's dynos results show only 1.5hp increase in max hp and 9 hp in midrange, far below my total numbers.
Most important for everyone to see is that by improving pumping efficiency on only one side of the motor does not allow this wonderful engine to really sing. You need to improve both intake and exhaust to realize major gains.

I think the mistake you were making was wrapping the picture in [IMG]...[IMG] when you missed just one little backwards slash as it should be [IMG]...[/IMG]

I did the tags correctly. Linked to my pbase site. didn't work though.

To clarify you have the Stillen Gen 3 CAI and not the Gen 2 right? I would think the Gen 2 are easy to maintain than the Gen 3.

Very Impressive Gains...

Typo. Sorry. I have the g2

Why is that ?

The gen 3 mounts the air filters behind the bumper while the gen2 mounts inside the engine compartment. No need to remove the front bump to clean the filters.

This results are pre chip tune right?

I have this same set-up with the G3s.... and love it! Docile when cruising below 3.5k, then really humms when you hit it.

These numbers are pre uprev tune. Now at 337whp after the tune.

And this is with the gen 2? Everyone keeps saying just get the gen 3, but this kinda proves that gen2 does make good power.

It is with the gen 2. A longer intake tract will yield greater mid and low range power while a shorter tract will yield greater high range power. This is a general statement assuming all other factors are equal. The gen 2 might have a slightly increased intake charge temp at low speeds but once the car is moving the shrouds keep warm under hood air away from the intakes. Also, there is a substantial difference in maintanence as the short (gen2) tube intake filters access does not require removal of the bumper. In reality this maintenance ease is the primary reason I went with the gen2. I really wouldn't expect a big difference isn actual rwhp between the two (gen2-gen3) with stock motor internals.
Also, my dynos are a little deceiving. I installed the CBE first so that yielded the greatest performance gains. If I had installed the CAI first the high gains would have been with that. The real lesson here is that to really reduce parasitic pumping loss and get the best efficiency (resulting in maximum performance gains) one must improve flow at both intake and exhaust allowing the motor to breathe easier.
I have final dyno info, will post soon. Biggest improvement is in mid range. Most noticeable, substantial drivability improvement.