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Old 08-22-2003, 01:58 PM   #1
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Smile Introducing The Oakos Automotive Down Pipe! Introductory Price of $174.95 Shipped!

The Oakos Automotive down pipe now includes a PEP CEL fix so check engine lights are a thing of the past.

The retail price will be $199.95 but our introductory price is $174.95.

This down pipe is an affordable, direct bolt-in replacement for the stock down pipe. By eliminating the restrictive catalytic converter in the stock down pipe the engine will have more power and quicker boost response. I ran the prototype on my car for a couple of weeks for testing before I reluctantly had to give it back for analysis. The gains in power and response were very noticeable along with a nice improvement in the exhaust tone.

Features:
  • 304 Stainless Steel CNC Mandrel Bent Tubing
  • 304 Stainless Steel Heavy Duty Bracket
  • Laser cut 3/8" Thick Mild Steel Flanges
  • Flanges are exact duplicates of the stock flanges, even the lower flange for an exact mate to the stock 3rd cat pipe
  • Formed tube exit for a smooth transition into the ovular shaped lower flange
  • Entirely TIG Welded
  • Only 5.5lbs; less than half the weight of the stock down pipe

These pipes are manufactured exclusively for us by a ISO/QS certified Tier One automotive supplier. This company manufactures all the exhaust manifolds for Aston Martin as well as many other automakers. I personally visited 7 different shops before deciding on this place to make our pipes for us.



99% of the orders placed before 3PM EST M-F are shipped the same day!

Dealers please contact us for wholesale information.

Sincerely,
David Kearney
Oakos Automotive
www.oakos.com
sales@oakos.com
Tel: 248.969.2207
Fax: 248.969.4950

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Last edited by OAKOS Automotive; 02-29-2004 at 07:40 PM.
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Old 08-22-2003, 02:29 PM   #2
Orson
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Member Sales Rating: (2)
 
Member#: 25254
Join Date: Sep 2002
Chapter/Region: MWSOC
Location: Livonia, MI
Vehicle:
2003 WRX wagon

Default

Hmmmm.

Can you post a picture of what the mouth to the turbo looks like?
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Old 08-22-2003, 02:38 PM   #3
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Orson, I will have more pics soon. The inlet is not a bellmouth design if that's what you are wondering.

-Dave
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Old 08-22-2003, 03:01 PM   #4
cavymeister
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Location: Leesburg, VA
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2003 Chevy S10
91 Hunduh Civic BASE

Default

Nice peice! Good job Oakos! If I hadn't already made my own I'd probably get one.

I've noticed a lot more vendors making their own parts and pricing them better then the other parts I like the competition and selection!!
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Old 08-22-2003, 03:15 PM   #5
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Thanks cavy!!

-Dave
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Old 08-22-2003, 05:56 PM   #6
batmanalan
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Join Date: May 2003
Location: bloomfield, MI
Default

great guy and vendor
alan
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Old 08-22-2003, 11:04 PM   #7
INTEGRAtoWRX
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Join Date: Jan 2002
Location: Ohio
Vehicle:
02 WRX
13 Boss 302

Default

I assume you get a CEL with this since it's eliminating a cat right?
bump for a good deal.

Edit: I just checked out the website. just trying to decide if it's going to bug the hell out of me to have a CEL

p.s. Is it a 3" downpipe?

Last edited by INTEGRAtoWRX; 08-23-2003 at 12:05 AM.
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Old 08-23-2003, 10:17 AM   #8
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Alan,
Thanks a lot for the compliments!

INTEGRAtoWRX,
Yes, a CEL is likely since the catalytic converter is eliminated. A CEL fix can be used to cure that. We don't currently have one available, but I am hoping to have one soon.

The tube is 2.5". I looked into using a 3" tube, but then the downpipe wouldn't have been a direct bolt-in replacement like I wanted it to be. There is plans for a all-out performance downpipe with a bell mouth inlet and large diameter tubing, but that won't be released anytime soon and the price definitely won't be $175.

-Dave
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Old 08-23-2003, 10:56 AM   #9
BlueDemon
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Member#: 10173
Join Date: Sep 2001
Chapter/Region: South East
Location: Oakland Park
Vehicle:
2005 WRX STi
Silver

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Oakos is a great Vendor, and I'm sure this pipe is everything he says it is, if not more.

Looks good Dave.


Blue
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Old 08-23-2003, 02:47 PM   #10
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Thanks a lot Blue!

-Dave
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Old 08-23-2003, 11:44 PM   #11
motorcitywrx
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Chapter/Region: MWSOC
Location: Macomb, MI
Vehicle:
2014 STi Hatch
White

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Hey Dave really surprised not to see stainless flanges on the specs. I was told my bpm had stainless flanges and well,they definatley don't . My point is living in Mi. I would not consider another exhaust that didn't have stainless flanges after seeing the shape mine are in after 2 winters with the pipes still looking great. This is not meant to be a flame at all. Dave is a great local vendor here in Mi. -Wayne
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Old 08-25-2003, 12:35 PM   #12
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Wayne, I considered using stainless steel flanges, but in the end I decided on the mild steel flanges due to cost. SS flanges would have added about $20-$30 to the price of the down pipes which would have bumped the retail price to $220-$230 and the intro price to $195-205. One of my main objectives for this down pipe was to keep the price as low as possible without making any large sacrifices. Sure the flanges will rust, but they are thick enough where they will never rust enough to cause any problems within the lifetime of the vehicle. The tube, bracket, & weld filler are the areas that would be prone to rust-through and that is why they are stainless steel. Also, the flanges are out of site so, cosmetically, some surface rust won't even be seen. The bottom flange is under the car and is out of site and the top flange is covered by the turbo heat shield and can't be seen.



-Dave

Last edited by OAKOS Automotive; 08-25-2003 at 12:41 PM.
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Old 08-28-2003, 01:41 PM   #13
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Here are some more pics of the down pipe:



Here is the top flange:


Here is a picture of the transition at the bottom of the tube:


Here is a close up of the bracket:
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Old 09-04-2003, 01:41 PM   #14
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Who else want's a down pipe??

-Dave
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Old 09-04-2003, 02:54 PM   #15
G-shock
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...is it just me or is the flow from the wastegate side looking at solid steel??????
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Old 09-04-2003, 04:12 PM   #16
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Like I've said before, my main goal for this part was to offer an affordable, best bang-for-the-buck, direct replacement down pipe.

I considered going with a bellmouth inlet, but I decided against it for several reasons:

a) The pipe would no longer be as affordable as it currently is, the price would have been driven up considerably. The tooling alone that is needed to properly form a round tube into a bellmouth shape (none of that hacked-up-sections-of-pipe-welded-in stuff) would have been at least $3,000 and that doesn't even include the additional labor to form each pipe.
b) The pipe would no longer be a direct bolt-on replacement because the turbo heat shield would need to be modified to fit.
c) I believe the bellmouth design is over-rated. I'm not trying to dispute that additional flow can be gained from a bellmouth design, but for most mild to moderately modified WRX's there won't be a whole lot of a difference, especially for the additional cost. Also, the STi makes 300HP and 300 ft/lbs of torque with this style of flange, so it's HP potential is obvious.

-Dave
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Old 09-09-2003, 04:01 PM   #17
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Bump.



-Dave
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Old 09-09-2003, 09:49 PM   #18
Davenow
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Chapter/Region: NESIC
Location: de_dust and Orgrimar
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.

Default

Quote:
Originally posted by G-shock
...is it just me or is the flow from the wastegate side looking at solid steel??????
Yup but thats no different that the stock piece or the HKS downpipe.

Yeah its not a great design for ultimate HP/flow, but its 179-199 friggin bucks and a direct bolt in. I could have this swapped in on a non hot/non rusted nuts car in like 10 min.
Nice park oakos.


BTW anyone that is even half decent with a plasma cutter/welder could turn that thing into a bellmouth
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Old 09-10-2003, 10:38 AM   #19
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Quote:
Originally posted by Davenow

BTW anyone that is even half decent with a plasma cutter/welder could turn that thing into a bellmouth
That'll void the warranty!

Seriously though, thanks for the input.

-Dave
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Old 09-11-2003, 12:10 AM   #20
c_hunter
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Location: Wmsbg, Virginia
Vehicle:
05 Outback XT 5EAT
Gold/Black

Default Hey Dave....

Dave,

You said you drove around with this for a couple of weeks. Compared to stock, what was the impact on turbo whine and wastegate flutter noise?

thanks,
Craig
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Old 09-11-2003, 01:39 PM   #21
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Craig,
That was the prototype that I tested for a few weeks. I now have had a production version on my car for several weeks. They are pretty much identical.

Turbo whine is a little more audible but the AEM CAI that I have on the car probably masks some of it because it produces plenty of noise on it's own. I am not sure what you mean by "wastegate flutter noise" so I can't comment on that.

-Dave
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Old 09-15-2003, 02:30 PM   #22
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Here are a few pictures that show how restrictive a catalytic convertor really is.

I opened up the stock down pipe to get a look at what is inside.



This shows just how small the passageways through the honey comb catalytic material really are.
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Old 09-17-2003, 08:33 PM   #23
hotrod
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Member Sales Rating: (2)
 
Member#: 14141
Join Date: Jan 2002
Location: 13.239@102.85 @ 5800 ft on 13T
Vehicle:
2002 Impreza WRX

Default Just got my pipe

Dave Just wanted to complement you on an excellent value, direct bolt in pipe.

I just got mine today, arrived right on time. It's so nice to deal with a vendor that gets products out the door promptly.

My initial impression of the pipe is excellent.

Folks this is exactly what you would expect if you could order it over the counter from the OEM manufacturer.

Very clean, my pipe looks exactly like the display model photo's above. Very clean welds, probably machine welds they are very uniform. If they are done by hand the manufacture has got top notch welders.

All the mandrel bends are true constant diameter bends, absolutely no crimping. External surface finish is not show quality, but I'm not willing to pay for a polished pipe that no one will ever see.

For the folks concerned about the pipe inlet. Note in the picture that the pipe is welded to the flange on the inside. This creates a smooth transition to the pipe diameter. Much better than a tube welded on the outside of the flange and a rough square end facing the turbo.

Like all mass produced pieces there are a few minor burrs on the edges. You should plan on spending a minute or two with a fine 3 corner file just skinning the corners off all the edges of the bracket to avoid cuts or other unpleasant surprises during the install.

Over all my first impressions are excellent. I will be installing it in the next day or so and will give a review after I have a couple hundred miles on it.

Dave --- You done good!!
Thanks for an quality down pipe at a reasonable price.

Larry
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Old 09-18-2003, 12:40 PM   #24
OAKOS Automotive
NASIOC Storefront Vendor
Vendor Sales Rating: (154)
 
Member#: 18261
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Sterling Heights, MI
Vehicle:
2002 Impreza WRX w/
V9 Spec-C EJ207

Default

Larry,
Thanks a lot for your input!

-Dave
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Old 10-07-2003, 02:47 PM   #25
hotrod
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Join Date: Jan 2002
Location: 13.239@102.85 @ 5800 ft on 13T
Vehicle:
2002 Impreza WRX

Default final review of down pipe

Dave:

Just thought I'd Let you know the gains I got by installing your down pipe.

With the down pipe as the only change in the exhaust system behind the turbo (still running the stock muffler, resonator and 3rd cat) I dropped my ET by 0.137 seconds and raised my typical trap speed by 2 mph.

By dropping the stock muffler I gained an additional 0.182 seconds and added another 2 mph to my trap speeds.

Not bad return on investment!!
Thanks for your prompt shipping and a fine product at an affordable price!

All this on the stock 13T turbo at 5800 ft altitude. Current best ET 13.806, best mph 99.11 best 60' 1.826

Larry

(edit to change compressor to 13T)

Last edited by hotrod; 01-17-2005 at 07:35 AM.
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