cigarlvr
1/7/2006 7:28:03 PM
Iam looking to get some more MPG as well as a few more HP. Anyone useing this system and how does it work well or am I better off with the K&N and then using the spacer.
CruisinCarAudio
1/8/2006 2:56:17 PM
i would use the k&n and skip the spacer, my parents put a spacer in their h2 and it was the biggest waste of money, it didnt save mpg, and it didnt add any hp
Hummered
12/20/2007 10:49:24 AM
Go with the H3 Hummer K&N 77 Series High-Flow Performance Kit and upgrade your exhaust. I did all three with my 2006 H3 and like others here I am using the TBS as a paper weight.
branstone
12/20/2007 11:49:43 AM
I also have k&n cai and gibson exhaust made a huge difference
D VADER
12/20/2007 11:56:22 AM
Right, the spacer is a gimmick and waste of $$. I have the K&N and my own designed runner tube sans the resonance box.
Doc Olds
12/20/2007 11:56:30 AM
I am not a fan of either.
tomp
12/20/2007 12:23:29 PM
Dont do spacer.
If you do CAI kit with tube, you really need to add a calibrated MAF (Granatelli) to reap the full benefits of the new air intake! Just ask Volant why their kit with tube comes with a calibrated MAF and they will explain why is is needed to gain most performance!
I have a Granatelli MAFs new in box at home if you decide to go this route. Will offer it at a really good price as I ended up with a Volant CAI kit that I didnt know came included with one. Was wondering why the kit was $650, so now I know...
D VADER
12/20/2007 12:33:21 PM
quote:
ORIGINAL: tomp
Dont do spacer.
If you do CAI kit with tube, you really need to add a calibrated MAF (Granatelli) to reap the full benefits of the new air intake! Just ask Volant why their kit with tube comes with a calibrated MAF and they will explain why is is needed to gain most performance!
I have a Granatelli MAFs new in box at home if you decide to go this route. Will offer it at a really good price as I ended up with a Volant CAI kit that I didnt know came included with one. Was wondering why the kit was $650, so now I know...
Is it designed specifically for the I5 3.7? How much?
Doc Olds
12/20/2007 12:36:05 PM
Granatelli shows part # apps only for the H2. A PCM tune can do the same thing.
D VADER
12/20/2007 1:10:54 PM
quote:
ORIGINAL: Doc Olds
Granatelli shows part # apps only for the H2. A PCM tune can do the same thing.
That's what I thought..for the V8 only
tomp
12/20/2007 9:07:40 PM
Sorry, I thought I was in H2 section....LOL
Doc Olds
12/21/2007 6:23:05 AM
tomp
12/21/2007 10:55:36 AM
I hope so, as I have both H2 & H3:)
alrock
12/21/2007 11:12:44 AM
I don't use the CAI or the spacer. I do use the Airaid filter, Gibson exhaust and pcm tune. I believe you will see a HP gain from the filter and exhaust though I doubt you would see an mpg improvement. As I've said in other thread, you'll really want the pcm tune to maximize the benefits of these add-ons and improve the driveability of the H3.
Want to increase the mpg? Drop the roof racks, if you have them. Drive slowly from a stop. Increase your tire pressure, etc. All of the common sense things.
You are still welcome here!!! 
Only benefit that I've had so far.