What do everyone think about the APS Plenum?? Anyone have info on it?? Hp and Torque gains, etc.?? Can I use a stock hood, or would the cowl induction looking CF hood work?? Anything will be appreciated.

 

IMO Right now untill the new plenums that are being made the aps is the best plenum if you have a turbo 20 to 30whp can be gained...If NA I would go Crawford...my 2 cents...

 

Crawford and APS are basically the same thing. If you want a plenum, either will do fine. Both will fit under stock hood, but both need a replacement STB.

 

Kentix SSV

 

.....is a HUGE waste of money

Kinetix products are down right crap and I wouldn't recommend them to anyone

 

i thought the motordyne spacer tested out better than everything for na Z's. At least thats what i thought i read on a post about the sportz magazine test.

 

I have the APS plenum. Works fine with the stock hood. I did get the APS strut bar as well since the stock one would not fit. Have no idea about the gains because I haven't had time to dyno the car. Yes, I am NA.

 

Unfortunately, APS opted not to participate in the Sport Z magazine plenum and plenum spacer article. Not having their product in the test prevented consumers from seeing how APS products perform in a controlled test compared to their competitors.

Once again, APS made this choice, not Sport Z magazine. We would prefer to see all products tested giving consumers better information in selecting products that meet their needs.

 

Honestly I don't think APS cared how it would perform in your test. APS doesn't design products for n/a as their intended use. Yes, you can put their exhaust, test pipes, and plenum on a n/a car, but APS designed them for use with their FI setups.

IMO, the APS plenum will perform nearly identical to crawford.

 

After the recent plenum vs plenum spacer shoot out, I scrubbed the idea of a aftermarket upper plenum, and went for the spacer.

 

So what you are saying is, you have the EXACT same setup and conditions as the car(s) in the test have? and as a result, you expect the EXACT same gains as were shown in the given test?

That's not to say that the spacer is a bad product, and it in fact very well may be the best.

just curious since I never read the test results. What was the difference in gains? like 2 whp? on a base of 10 whp??

 

A suggestion. Get a copy of Sport Z Magazine, read the entire plenum-spacer shootout article, including all spreadsheets. You may be surprised.

And no, I would never expect the exact same results, but I'd bet they'd be close--with one possible exception.


DaveO
G35 Editor
Sport Z Magazine

 

my point is, APS doesn't care about n/a gains and neither do I. It isn't worth to to sit and discuss 10-20 whp gains

 

I have had both a spacer and an APS Plenum I prefer the APS the sound is much more agressive and the car pulls harder.

 

Thats what I needed, someone whos had both. Thanks man Anyone else say the plenum is better than a spacer??

 

I have the same suggestion. Buy the current issue of Sport Z Magazine and read the plenum-spacer shootout results. Check-out the spreadsheet info, note the test car was a stock 04 MT and buy the one you like and fits your personal priorities best.

I've run the Crawford & Kinetix V4 plenums, and the Motordyne 5/16" & 1/2" spacers on my G35. My personal conclusions? If you like a plenum's looks buy it. If you prefer the stock plenum buy a spacer.


DaveO
G35 Editor
Sport Z Magazine

 

The results and charts are published here on this forum.