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xforce Varex muffler


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#1 jessejames

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Posted 04 September 2007 - 02:09 PM

Hi Just wondering if anyone has heard any good or bad things about the Xforce Varex muffler. It has a butterfly valve in the can that makes the car quiet or loud. Heres a link to a video on youtube.

Do you think the back pressure would be harmful to an engine? I'm in the middle of an SR20 swap in my 73z and I need a quiet exhaust. What do you guys think?

#2 RB26powered74zcar

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Posted 04 September 2007 - 02:51 PM

I like it. Its exactly what I need. I just wish I could buy one here in the US. :icon_frow

#3 Armand

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Posted 08 September 2007 - 09:35 AM

Man that is such a good idea. That would be great to have while cruising on the freeway or anywhere really.
-1971 Datsun 240z-SR20DET:icon54:

#4 BillZ260

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Posted 09 September 2007 - 07:42 AM

So is it a legal or an availability issue for the US? I didn't see any websites offering it in the US, all were AU NZ only. Looks like a nice alternitive to the manual butterflys that have been around.
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#5 Careless

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Posted 09 September 2007 - 12:03 PM

So is it a legal or an availability issue for the US? I didn't see any websites offering it in the US, all were AU NZ only. Looks like a nice alternitive to the manual butterflys that have been around.


Manual? You can get electronic ones here as well man, look on ebay there are all kinds.

"exhaust cutouts" is what you're looking for.

However, the Varex is unique because of the length of pipe and resonators run within the muffler can housing.
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Raff.
1987 Nissan "330zx" Turbo, 5sp GLL, VG33ET @ Stock Boost (daily driver)
1976 Datsun 280z (given to the Crombies)


#6 jessejames

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Posted 09 September 2007 - 07:06 PM

I'm not sure if it's legal here, but I think they will ship you one if your wiling to pay for the shipping. My concern is too much back pressure with the valve closed. I know that the muffler reroutes the exhaust fumes but it looks to be very restrictive. What do you think?

#7 RB26powered74zcar

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Posted 09 September 2007 - 08:04 PM

I'm not sure if it's legal here, but I think they will ship you one if your wiling to pay for the shipping. My concern is too much back pressure with the valve closed. I know that the muffler reroutes the exhaust fumes but it looks to be very restrictive. What do you think?



I emailed them direct. Below is their response back>>

Hi Thank you for your inquiry.
We don't have any dealers around your area at the moment. So we can't
directly supply you the muffler. But please contact any other dealers on the
dealers section in our website, they might be able to help you out. Or email
mail@bestmufflers.com


Best regards,

Joe Feng
X-FORCE Performance Exhaust Systems
Tel: +61 2 9793 7338
Fax: +61 2 9793 3238
www.xforce.com.au

#8 Careless

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Posted 09 September 2007 - 08:23 PM

I'm not sure if it's legal here, but I think they will ship you one if your wiling to pay for the shipping. My concern is too much back pressure with the valve closed. I know that the muffler reroutes the exhaust fumes but it looks to be very restrictive. What do you think?


a lot of standard muffers have re-routed exhaust fumes or baffles that are in V shape or reverse V shape to split or collect the plumes to slow them down, allowing the exhaust to fill the muffler with enough smoke to deaden the sound.

I don't think this would be too restrictive.

If they had a mode that would allow half open, that would be better though. I bet it's possible to wire up.
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Raff.
1987 Nissan "330zx" Turbo, 5sp GLL, VG33ET @ Stock Boost (daily driver)
1976 Datsun 280z (given to the Crombies)


#9 mario_82_ZXT

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Posted 09 September 2007 - 08:30 PM

If they had a mode that would allow half open, that would be better though. I bet it's possible to wire up.


I got the impression that that's how it was. It seems you had to hold the + or - button to get it to open/close fully.

It looks way too restrictive fully closed though. They said it passes 3 times in the outer casing before it exits, and that inlet and outlet holes look tiny!
Mario
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77 280z | $200 parts car turned daily driver
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#10 RB26powered74zcar

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Posted 09 September 2007 - 10:14 PM

I got this response back from bestmufflers.com>>

" hi Joel, we can supply the Varex muffler [double wall tip] for $550 inc p/hWe accept credit card or direct deposit
If you require any other further information please do not hesitate to Contact Us
Thank you for contacting Best Mufflers for your exhaust system inquiry
regards
Chris Myles
Best Mufflers
69 Planthurst Rd
Carlton NSW 2218
PH 0295473511
FAX 0295473522
mail@bestmufflers.com
www.bestmufflers.com "

I wonder how much that actually is in US dollars...?

#11 Careless

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Posted 10 September 2007 - 02:53 AM

use www.xe.com

452 dollars, US.
477 dollars, CAD.

here are the various styles, as well:
http://www.bestmuffl...flers.htm#varex

The last one on the page has a video of the exhaust on an R34, and i think that's the only xForce varex on the site, the rest are just xForce brand.

Looks to be a nissan power window motor that has been insulated a little bit within that box, and attached to a butterfly valve. I wouldn't buy one, doesn't seem worth the price.
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Raff.
1987 Nissan "330zx" Turbo, 5sp GLL, VG33ET @ Stock Boost (daily driver)
1976 Datsun 280z (given to the Crombies)


#12 jessejames

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Posted 10 September 2007 - 01:28 PM

There was one for sale on ebay for $200 which is not bad. I would like a nice exhaust without the heat. I was looking at the Apexi Noir. I'm not sure how quiet it is but It looks the part.

#13 zmaster

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Posted 02 May 2008 - 10:13 AM

Is anyone forgetting the best worldwide auction site.....Hmmmmmm can anyone say Ebay.com
[SIGPIC][/SIGPIC]I live my life a quarter mile at a time, and nothing else matters. For those ten seconds or less i'm free.




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