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jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


quote:

Rybky wrote:

There is one thing that I feel is important and everyone considering this needs to be aware of. The factory cat converter is part of the extractors and sits up very high at the front of the engine. The Hi-Tech system puts the cat under the engine which as exhaust physics goes it a much better location. However, cats don't like being submersed in water, they have a ceramic core that can crack if the temperature changes too fast. They also get very hot during use. Nissan state that the exy should only be taken through water crossings up to the wheel axles (IIRC) which would mean the factory cat is still above water and safe. The Hi-Tech cat would be one of the first parts of the car submersed.



Adam, a small correction to the information you have posted above but it is an important one to be aware of.

You probably missed the High Flow Cat Converter that is used by Hi-Tech and which I have described in full HERE

You would be glad to know that the cat converter sitting under your car has NO ceramic components in it At all

It is full stainless steel construction and this includes the core!

That is one of the beauties of the Hi-Tech system and the reason you get constant flow of gases through the cat converter without the core expanding or retracting due to ceramics (unlike the factory cat converter)

It also eliminates any potential dangers of flaking that can be caused with ceramic cats.

You can go off-road with a peace of mind knowing you have tough little 'tank" under your car that can take the most extreme conditions.

The power increase figures you have reported are in-line with the dyno tests I have conducted and I am very happy about that.

---

6/Sep/2006, 5:26 pm Link to this post Send Private Message MSN Blog
 
Rybky Profile
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X-TRAIL LEGEND
 


Date Registered: 08-2005
Location: Sydney
TOTAL POSTS: 542
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


I stand corrected! emoticon

Thanks for clarifying that.


---
- Adam (MY04 Titanium Ti-L)
Full Hi-Tech exhaust,Koni shocks,Whiteline rear s/bar,front strut bar,K&N filter,eyelids,Pioneer DVD+iPod+Veh Dynamics+rear view camera
6/Sep/2006, 10:10 pm Link to this post Send Email PM   Send Private Message
 
NPC73 Profile
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X-TRAIL HOLIC
 


Date Registered: 12-2004
Location: Mount Isa, QLD
TOTAL POSTS: 1247
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


quote:

Rybky wrote:
it is louder but also deeper and really growls like a V6.



It is only louder the higher up in the rev range you get. And generally over about 5000RPM is noticeable, which you not normally rev as high on a stock engine.

I suspect it's just the different tone in the exhaust that your experiencing. Mine is a Manual X-Trail as well, emoticon

---
Noel...
Member ID: X-072 (Retired Administrator)
2003 X-trail, TI, Manual, (Series 1) - (with the works)
2013 Toyota Prado, Manual, Turbo Diesel - (Snorkel-K&N-Full Exhaust, 20" Low Profiles, Chrome Bullbar, HID Spots, + All the Bling!)
7/Sep/2006, 12:04 am Link to this post Send Email PM   Send Private Message MSN Blog
 
Rybky Profile
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X-TRAIL LEGEND
 


Date Registered: 08-2005
Location: Sydney
TOTAL POSTS: 542
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


Also Noel I have a slightly different cat-back system to the one that Hi-Tech now sell. Mine was the first custom built one and my end pipes are much shorter because I don't have a towbar so they did not work around it. My system was always louder than Jalal's.



---
- Adam (MY04 Titanium Ti-L)
Full Hi-Tech exhaust,Koni shocks,Whiteline rear s/bar,front strut bar,K&N filter,eyelids,Pioneer DVD+iPod+Veh Dynamics+rear view camera
7/Sep/2006, 8:53 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


That is correct. Actually after going for a drive in Adam's exy, I went back to Hi-Tech and told them that it would be best to modify the system so the tail-pipes remain further apart for BOTH xtrail versions (with and without a towbar) because I felt that with the tail-pipes being so close to each other, the sound was actually resonating through the back section of the cabin and the loud growl was really noticeable when down-shifting with a manual xtrail.

This has since been corrected and Hi-Tech now offer one type of design for all xtrail models which is quiet as a mouse.

---

7/Sep/2006, 9:22 am Link to this post Send Private Message MSN Blog
 
NPC73 Profile
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X-TRAIL HOLIC
 


Date Registered: 12-2004
Location: Mount Isa, QLD
TOTAL POSTS: 1247
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


Adam,

Ahh yes, I do recall now that you have one of the first prototype systems by Hi-Tech, emoticon

I do believe that the loudness issue has been resolved as Jalal meantioned above and that your system is a one off case.

---
Noel...
Member ID: X-072 (Retired Administrator)
2003 X-trail, TI, Manual, (Series 1) - (with the works)
2013 Toyota Prado, Manual, Turbo Diesel - (Snorkel-K&N-Full Exhaust, 20" Low Profiles, Chrome Bullbar, HID Spots, + All the Bling!)
7/Sep/2006, 10:22 am Link to this post Send Email PM   Send Private Message MSN Blog
 
Canadas FarEast Profile
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BANNED USER

Date Registered: 10-2005
Location: Newfoundland Canada
TOTAL POSTS: 395
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


quote:

jalalski wrote:

Hi Rich,

AS I stated previously in my report, The Hi-Tech system is fully EPA compliant, this includes db levels, I wouldn't have fitted a noisy exhaust system to my exy cause I hate loud exhausts.

No dyno tests were done on the ST-S as the owner fitted the system himself at home. (he's not from Sydney) but he said he can certainly feel the increase in power which I presume came from removing the second cat. and fitting the twins. Basically that means that the ST-S should now be running with a power equal to the pre 2006 models and that is 132KW more or less.

quote:

Rybky wrote:
The bigger concern with doing this to an ST-S would be emissions, the 2nd cat was there to comply with stricter regulations brought in early this year, removing it obviously means you no longer comply. Might be an issue at the 3 year mark.



That is correct Adam and it is a point I and Hi-Tech clearly highlighted to the owner of the ST-S. It was his decision to do so and he mentioned that his dealer didn't have a problem with it either. Although I doubt that will be the case should a warranty claim need to be made. He stated that he can always put the second cat. back if needed.

The main concern I had was the ECU behavior should the second cat. be removed and surprisingly it did not register the absence of the second cat, because it is still receiving the signal from both O2 sensors (they have two of them) OK.

Also Adam, the Hi-Tech template of the twins comes with two resonators as standard.



Hi Jalal:

As I think you know, I have been following this thread for quite some time now.

I've been waiting for any issues with the 2 cat converters (your ST-S) to be sorted out and an indication of the availability of a "kit" for same (and pricing).

Thought that was accomplished when the ST-S owner set about having the system installed - - but he then dropped one of the cats and is basically back to your pre-STS models.

My interest remains in a cat-back system only, which would simply attach behind the existing set-up. As you mentioned, this would involve making part of the existing kit "shorter" by virtue of keeping the cat converters....

It seems to me that were not quite there yet - is that correct ?? Do you know if Hi-Tech has any plans to release such a kit in the foreseeable future ?? i.e. a bolt-on cat back suitable to the your St-S (and the Cdn. version) that would work without removing the second converter...

Also wondering if it would still use 2 resonators or would one suffice ??

Any info / comments appreciated...

Cheers = Roger

And yes - I would consider putting it on my new vehicle (to get rid of the ugly duckling at the rear) because I don't see any warranty issues if the cats are kept in order.



---
Roger
X 228


2006 X-T Bonavista Edition
Production Number 0001

28/Sep/2006, 10:38 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
Reply | QUOTE
Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


Roger,

Having the cat back system (existing template) modified to suit the ST-S (or your version of the xtrail in Canada) will not pose a problem at all, but myself and Hi-Tech would like to test fit the modified template on an ST-S to know the exact measurements, as such, we're still waiting for someone in Sydney with an ST-S to have the cat. back system fitted so we know the exact length of pipes that need to be shortened for this model.

The system will still have 2 resonators, otherwise it'll be too loud and I don't think anyone would want that to happen.

I will keep you and the forum posted when an ST-S installs the cat. back system successfully in Sydney.

Dropping the factory second cat. (which is located under the car in the ST-S) is an option but it is a warranty affecting decision which the owner in question decided to do at his own risk.

Last edited by jalalski, 28/Sep/2006, 11:21 am


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28/Sep/2006, 11:20 am Link to this post Send Private Message MSN Blog
 
Huskie2615 Profile
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X-TRAIL NEWBIE
 


Date Registered: 03-2005
Location: Canberra
TOTAL POSTS: 14
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


HI-TECH EXHAUST SYSTEM – Review

After joining the “It’s Good To Have Twins Club” a few weeks ago I though I might give my option of this system.

First off I would like to say that the system is well made & the materials are of a high standard. “Jalal you can let you the boys at Hi-Tech know that they have another happy costumer”

Besides the looks from the rear & the obvious advantage of not having that bulky part of the exhaust box at the rear “as far as height restriction goes”. This system is a winner. Nice to be able to hear that little sweet note as you are cruising along.

Went for a drive to the coast on the weekend over the Cyde Mountains & for those that known this highway then they will understand the amount of gear changes you can do both ways of the trip due to the steepness & sharp corners. The exhaust sounded sweet as we were backing off into the corners & also in the rare cases were a bit of a kick along was required on the few overtaking lanes available.

The power output seems better in 2nd & 3rd with more pull in 3rd .

All in all very happy with this system & hoping to get the other part of the system “Ceramic Coated Extractors in 4-2-1 configuration” at a later date.

Brian

Huskie 2615
2/Oct/2006, 11:05 pm Link to this post Send Email PM   Send Private Message
 
NPC73 Profile
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X-TRAIL HOLIC
 


Date Registered: 12-2004
Location: Mount Isa, QLD
TOTAL POSTS: 1247
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Re: Hi-Tech X-Trail Extractors/Headers & Full Exhaust System


Hi Brian,

Good to hear that all is going well with the cat back upgrade and your enjoying it like we do, emoticon

The extractors and high flow cat upgrade is definitely worth every penny, I can assure you you won't be disappointed with this part of the upgrade.

---
Noel...
Member ID: X-072 (Retired Administrator)
2003 X-trail, TI, Manual, (Series 1) - (with the works)
2013 Toyota Prado, Manual, Turbo Diesel - (Snorkel-K&N-Full Exhaust, 20" Low Profiles, Chrome Bullbar, HID Spots, + All the Bling!)
2/Oct/2006, 11:51 pm Link to this post Send Email PM   Send Private Message MSN Blog
 


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