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Old 01-28-2010, 10:23 AM   #1
Bean-Counter
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Default Perrin vs Process West TMIC

2009 WRX-
Staying stock turbo, but having a hard time deciding between these two.

Perrin TMIC+1 for domestic, easily contacted, great service, $200.00 less

Process West TMIC +1 for top of line reputation, great hood scoop adapter (probly worth $100 by itself), rarity ie something you don't see on every other car


Leaning toward the PW... Any insight from the more experienced people here?
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Old 01-28-2010, 10:25 AM   #2
csmithwrx'05
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The PW is supposed to cool better (meaning it can push a higher CFM turbo then the perrin), but that maybe a bit of speculation.

My choice would be the PW as that is just a sexy looking TMIC.
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Old 01-28-2010, 10:31 AM   #3
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agreed on the sexy factor
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Old 01-28-2010, 11:10 AM   #4
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I like Perrin, but for the price difference I would go with PW.

Nick
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Old 01-28-2010, 11:14 AM   #5
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PW all the way. You can get it at Rally Sport Direct too...I just saw it yesterday online because I was thinking about getting it for my 07 WRX.
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Old 01-28-2010, 11:25 AM   #6
Bean-Counter
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Quote:
Originally Posted by adjasont View Post
PW all the way. You can get it at Rally Sport Direct too...I just saw it yesterday online because I was thinking about getting it for my 07 WRX.
that's where i saw it too, they should do group buy on those puppies!

winner winner chicken dinner, PW it is. such a good rep, it's hard to pass up. thanks for the quick feedback all.

Last edited by Bean-Counter; 01-28-2010 at 11:40 AM.
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Old 01-28-2010, 11:39 PM   #7
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count me in on the group buy if we can get one together
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Old 01-29-2010, 11:39 PM   #8
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I would be interested in a group buy as well.
That is one quality Intercooler.
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Old 01-30-2010, 12:07 AM   #9
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what are your future plans?

base your mod decisions on that.
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Old 01-30-2010, 12:32 AM   #10
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Process West all the way!!!
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Old 01-30-2010, 12:46 AM   #11
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Anybody have numbers for pressure drop & flow rate for either?
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Old 01-30-2010, 12:57 AM   #12
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GROUP BUY won't happen. Contacted Kevin at PW in AUS and he pointed me to Rally Sport Direct for all US orders. No more shipped to US straight from PW. RSD has monopolized these in the states, and they have no plans for ANY special pricing. I don't blame them. So I took one for the team and ordered mine from RSD. They're due from AUS anyday...

http://www.rallysportdirect.com/shop...er-p-4418.html
and for the sti guys
http://www.rallysportdirect.com/shop...er-p-4417.html
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Old 01-30-2010, 06:27 AM   #13
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the PW is an awesome piece, and it comes w/ a splitter included in the price. SO WORTH IT!
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Old 01-30-2010, 08:57 AM   #14
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Every product has its advantages.

Here's a review..
http://forums.nasioc.com/forums/show...+tmic+splitter
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Old 01-30-2010, 10:35 AM   #15
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Quote:
Originally Posted by Vlad View Post
Every product has its advantages.

Here's a review..
http://forums.nasioc.com/forums/show...+tmic+splitter
not the same product. according to the date on the review, the OP is referring to a PW TMIC for an older model STI. Seems like the older version was not remarkably different from the stock TMIC. However, differences between stock and PW for the WRX are clear in this photo. Also, the older model offered a splitter that was not required or considered an upgrade (sold seperately) This new product basically requires the splitter b/c of the increased width of the core. Here's a pic for reference

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Old 01-31-2010, 12:06 AM   #16
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perrin is tried and true, but the pw seems to be a great alternative. price wise perrin will cost more for the name.
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Old 01-31-2010, 10:14 AM   #17
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Sorry this is for older STI didn't see top 09 WRX. Another option is is the Griffin recore of stock STI TMIC. They cut off your stock endtanks and weld in a new core. They manufacture radiators and intercoolers and use an extruded tube design that has 5 more flow tubes and is slightly thicker than stock at ~70mm. This works with the stock splitter and skirt.


I modified a Zerosports splitter using the top aluminum duct from the stock splitter to better direct the flow from the scoop to the intercooler. The Zerosport splitter out of the box uses the inside of the hoodscoop as the top channel for air and lets a significant amount of air escape out the back between the scoop and back edge of splitter.

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Old 01-31-2010, 11:21 AM   #18
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I have the Perrin TMIC for LGT/08+WRX (purchased in 08 when they were $500 new). If I had to do it again at this point in time, I would think about the PW.
This is purely going by the picture provided in this thread, but the Perrin TMIC may be thicker height wise.
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Old 01-31-2010, 01:40 PM   #19
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Quote:
Originally Posted by grichardv8 View Post
Sorry this is for older STI didn't see top 09 WRX. Another option is is the Griffin recore of stock STI TMIC. They cut off your stock endtanks and weld in a new core. They manufacture radiators and intercoolers and use an extruded tube design that has 5 more flow tubes and is slightly thicker than stock at ~70mm. This works with the stock splitter and skirt.
I've always been intrigued about the griffin core retrofit, but it would appear that PLTEK is out of business? The company that was offering this service.

But I just love the quality of Process West, it's just a well made and well thought out system when combined with their splitters.
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Old 01-31-2010, 04:03 PM   #20
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You send your IC to Griffin directly in South Carolina for $450 they replace the core. I had mine back in 4 days.
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Old 01-31-2010, 05:21 PM   #21
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Quote:
Originally Posted by quick4dr View Post
perrin is tried and true, but the pw seems to be a great alternative. price wise perrin will cost more for the name.
not really. wait for perrin sales. i got my 08 perrin stealth tmic for 688 shipped from perrin. you arent gonna get the pw unit for that price.
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Old 01-31-2010, 05:30 PM   #22
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Quote:
Originally Posted by 424wrx View Post
not really. wait for perrin sales. i got my 08 perrin stealth tmic for 688 shipped from perrin. you arent gonna get the pw unit for that price.
yuup! in 08, it was $500, then they had thanksgiving sale and a small christmas sale in 09
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Old 01-31-2010, 06:34 PM   #23
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Quote:
Originally Posted by curiousfish View Post
I have the Perrin TMIC for LGT/08+WRX (purchased in 08 when they were $500 new). If I had to do it again at this point in time, I would think about the PW.
This is purely going by the picture provided in this thread, but the Perrin TMIC may be thicker height wise.
the Perrin is thicker height wise and depth wise but the PW is longer. The Perrin has 13 air channels and the PW has 10. if someone knew the LxWxH of each, and then figured in the air channels for the true inside area you would know which one would cool more!! keep in mind the PW hangs over the turbo more and should see more heat soak! All in all i like the PW better!

EDIT the PW is 15.75" length and 3.54" depth. 7.75" height from a guy on here=432.10 out side area

Perrin- from a guy on here, 11" length, 4" depth, 10.8" height= 475.2 out side area

now if all thats right i have no idea what the height is of each air passage so lets guess and say both are 1centimeter or .39".

Stock 08-10-11"x2.63"x0.22"=6.36 cu/in times 16 air channles= 101.83 cu/in total inside not including ET's

PW-15.75"x3.54"x0.39"=21.74 cu/in times 10 air channels= 217.44 cu/in total inside not including end tanks

Perrin-11"x4"x0.39=17.16 cu/in times 13 air channels= 223.08 cu/in total inside not including end tanks.

Last edited by synolimit; 01-31-2010 at 07:31 PM.
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Old 01-31-2010, 07:23 PM   #24
Bean-Counter
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^^ the PW does have 4 square inches greater surface area according to these numbers, but still, that's not much of a difference. :/
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Old 01-31-2010, 07:42 PM   #25
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Quote:
Originally Posted by Bean-Counter View Post
^^ the PW does have 4 square inches greater surface area according to these numbers, but still, that's not much of a difference. :/
very true!

not sure what the car was doing but this is the PW, looks cool


FYI Fahrenheit= 1.8x(celsius)+32

Last edited by synolimit; 01-31-2010 at 07:53 PM.
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