FYI - PayPal no longer requires new customers to setup an account with them if you prefer not to!

Need a catless Uppipe constructed to PDE's standards? The pictures below show the pride PDE takes in their products - from the perfect inside and outside of flange TIG welding, heatshield bracket, tube-in-flex design for low turbulence and long life, relocated EGT bung for ease of installation (no CEL), and finally to the thick and perfectly flat flanges.


PDE Flex Uppipe! (https://www.paypal.com/xclick/business=sales%40speedabsolute.com&item_name=PDE%20Flex%20uppipe&amount=275.00&cn=Nasioc+Username&currency_code=USD) $275 and includes FREE SHIPPING

http://www.speedabsolute.com/images/NASIOC/PDE/PDE003/upfull.jpg http://www.speedabsolute.com/images/NASIOC/PDE/PDE003/upbottom.jpg

PDE's Solid Uppipes are also available - same quality construction as the flex model - now CERAMIC COATED to minimize underhood heat!


PDE Ceramic Coated Solid Uppipe! (https://www.paypal.com/xclick/business=sales%40speedabsolute.com&item_name=PDE%20Ceramic%20Coated%20uppipe&amount=245.00&cn=Nasioc+Username&currency_code=USD) $245 and includes FREE SHIPPING - out of stock!

PDE pulled out all of the stops for this one...if you have been looking for a premium quality, perfect fitting, bitchin' looking, highly versatile performance downpipe - look no further. This downpipe is the ideal solution for those that compete in autocrossing, track days, drag racing - you name it! Notice the beautifully done (and very strong) TIG welds, the 6-bolt cat flanges, the copper gaskets, the high-flow Random Technology metal substrate race cat (measures 3" long by 4" wide), the INCLUDED catless section, the ideally sized bellmouth, the perfect fit, the mechanical catless inefficiency CEL fix, the provision for the stock donut gasket.... shall I continue or let the pictures speak for themselves???

More pictures here: http://forums.nasioc.com/forums/showthread.php?s=&threadid=484821

PDE 3" Downpipe with Removable Race Cat! (https://www.paypal.com/xclick/business=sales%40speedabsolute.com&item_name=PDE%20DP%20Removable%20Race%20Cat&amount=825.00&cn=Nasioc+Username&currency_code=USD) $825 and includes FREE SHIPPING - out of stock!

http://www.speedabsolute.com/images/NASIOC/PDE/PDE011/PDE011b.jpg http://www.speedabsolute.com/images/NASIOC/PDE/PDE011/PDE011f.jpg http://www.speedabsolute.com/images/NASIOC/PDE/PDE011/PDE011g.jpg


We also have the PDE 3" Downpipe with Race Cat available if you don't need/want the versatility of having a removable catalyst - same details as the other version, just less cost! :)

PDE 3" Downpipe with Race Cat! (https://www.paypal.com/xclick/business=sales%40speedabsolute.com&item_name=PDE%20Downpipe%20Race%20Cat&amount=699.00&cn=Nasioc+Username&currency_code=USD) $699 and includes FREE SHIPPING - out of stock!

http://www.speedabsolute.com/images/NASIOC/PDE/PDE005/pde005big.jpg


Don't like cats? How about a PDE 3" Catless Downpipe?
PDE 3" Downpipe! (https://www.paypal.com/xclick/business=sales%40speedabsolute.com&item_name=PDE%20Downpipe&amount=399.00&cn=Nasioc+Username&currency_code=USD) $399 and includes FREE SHIPPING

http://www.speedabsolute.com/images/NASIOC/PDE/PDE002/PDE002.jpg


All of these products fit the 2002+ WRX/STi, and Forester XT! PDE strives to be the best in the business and this commitment is seen in the quality of their products. Rigorous testing is always performed prior to the release of their products to ensure the customer always wins! PDE's QA is outstanding - you will receive a perfect product!

Definitely do not hesitate to contact us with any questions you may have as we are glad to help. Ground shipping to the continental 48 states is included (I will see what I can do to help those in Hawaii and Alaska out!). Your order will ship same day if received by noon PST! When I say quick-shipping, I truly mean it - these products are STOCKED on-hand, not drop-shipped or sitting in some warehouse far, far away. I know what it is like to wait for a delivery in anticipation and keep that to an absolute minimum for my customers!

Matt
sales@speedabsolute.com
805-234-6886

http://www.speedabsolute.com

TTT

Does PDE flex uppipe comes with gasket ? If not, do you have them in stock ?

Originally posted by ronf
Does PDE flex uppipe comes with gasket ? If not, do you have them in stock ?
Sorry, they do not come with new gaskets - I wasn't able to get a competitive price on them. There are some reputable Subaru OEM part shops that sell them for great prices - I recommend OEM gaskets if you choose to replace them.


I am shipping out free Gorilla lug nuts though for a limited time! Thanks for posting!

Matt

bump! The catted DP's are a hot commodity with STi owners!

TTT - removable cat downpipes and flex uppipes available!

TTT!

would these high flow cats pass emmissions tests?

Originally posted by thermobox
would these high flow cats pass emmissions tests?
The best way to answer this is "it depends". In many states they may pass the sniffer, but in states like California, they will not pass the visual test. If your state only requires an OBD scan, then it will pass because they will not trip a check-engine light.

Matt

ok. will it shoot flames like a cat's delete downpipe would?

Originally posted by thermobox
ok. will it shoot flames like a cat's delete downpipe would?
That would probably depend on your tuning - it would be much less likely than catless.

Is the wastegate divorced? At the back of the DP is looks like it, but at the mouth it looks like the wastegate is blocked off.

TTT

Originally posted by SlickWRX
Is the wastegate divorced? At the back of the DP is looks like it, but at the mouth it looks like the wastegate is blocked off.
Sorry I missed this question - the mouth of the PDE downpipe is sized to completely uncover the wastegate. The wastegate isn't blocked at all - PDE found this gave the best boost response without spikes, and overall performance. Also, the rear of the downpipe has a segregated O2 sensor pipe - this is PDE's innovation to avoid catalyst inefficiency check-engine lights.

Matt

TTT- Great Vendor!:disco:

how much does the pde downpipe increase cabin noise. As opposed to the few downpipes on the market that contain a cast bellmouth section??

Originally posted by fredrex
how much does the pde downpipe increase cabin noise. As opposed to the few downpipes on the market that contain a cast bellmouth section??
IMO it is a pretty minimal increase in noise - especially if you have a quiet muffler. You can hear the turbo spinning up a bit more than versus the stock downpipe, but it isn't obtrusive in any way. Hopefully we can have some other PDE users add their thoughts on this.

Thanks!

Matt

Really quick deliverey and great follow up. I would definetely recommend!!

Can't wait to put it on now!

Thanks Matt!

Originally posted by fredrex
how much does the pde downpipe increase cabin noise. As opposed to the few downpipes on the market that contain a cast bellmouth section??

I have the PDE ultimate downpipe w/removable race cat and the increase in noise is not much if at all. I have the Prodive catback muffler and all I hear when I hit the gas is the engine reving.

will this fit on to a blizt nur catback with any problems?
ive heard of bottle neck problems when mixing and matching

and by any chance do you have the blitz nur-spec catback in stock? any special for catback + dp?
thanks

wi11,

PDE downpipes will fit with any USDM cat-back. If I recall correctly, the Blitz is designed for the factory donut gasket so the fitment will be absolutely perfect.

I think the bottle-neck issues you are referring to are when a flat-gasket DP is matched with a donut gasket cat-back. The cat-back necks down while the DP doesn't. Good fitment is an issue in this case, especially if the manufacturers aren't too great at keeping their tolerances in check. I can tell you that although the PDE necks down to accommodate the donut gasket (or it can accept a flat gasket), the differences on a dyno are minimal if at all.

I apologize but I do not stock cat-backs...I will probably stock the PDE cat-back when it is completed but there isn't a set due date on that.

Matt

im sorry im kinda of a newbie -_-
will this setup be 3" full exhuast? .
im looking toward full 3" exhuast for my car thnx

The PDE downpipe design necks down to about 2.25" at the end of the downpipe for a very short distance...probably 2/3". What this does is allow you to utilize the stock donut gasket which does a couple of things:
1) keeps a flex in the exhaust
2) virtually guarantees a leak free fit
3) fits with ANY stock or US market cat-back (some of the JDM cat-backs are a different length)

PDE's testing showed they didn't lose a measurable amount of horsepower on the dyno and felt the benefits of this design far outweighed the possible costs - otherwise they wouldn't have done it!

Please keep the questions coming!

Matt

Wow, SpeedAbsolute and Duffman, Thank you very much for your responses. I am getting very tempted. I currently have a Cobb Downpipe on order and quite franky I'm getting sick of waiting so long, I've been waiting since early march. I would greatly appreciate if anyone else could add to my previous message.

Thanks,

-Zach

so where the blitz exhuast hooks up to the PDE downpipe the piping there is 2.25 " because i thought that the blitz exhuast was full 3" all the way?
-_- thanks

fredrex,

No problem - I'm glad that info helps. PDE makes awesome products.

wi11,

the piping on the Nur Spec is 80mm all the way (just a bit bigger than 3"), but I don't recall exactly if it is necked down for the donut gasket or not. I don't sell Blitz so I can't give you a confirmed answer.

I will see if I can find out.

Matt

bump!

TTT

Thanks for the bump Duffman1. Check out the new Ceramic Coated Uppipes!

Matt

Originally posted by wi11
so where the blitz exhuast hooks up to the PDE downpipe the piping there is 2.25 " because i thought that the blitz exhuast was full 3" all the way?
-_- thanks

Blitz catback & axle back exhausts for the US market have the "neck down" to fit the stock downpipe/cat (thus, the PDE downpipe also).

Originally posted by NightmareOnSubySt
Blitz catback & axle back exhausts for the US market have the "neck down" to fit the stock downpipe/cat (thus, the PDE downpipe also).
Thank you for the info!

Matt

I, too, am looking for an exhaust. I'd like to get a turbo-back system. Does PDE make them and how is their quality? As with anybody, I'd like a great sound but not go deaf when cruising the highway.

Thanks

JVEC

Originally posted by JVEC
I, too, am looking for an exhaust. I'd like to get a turbo-back system. Does PDE make them and how is their quality? As with anybody, I'd like a great sound but not go deaf when cruising the highway.

Thanks

JVEC
Currently PDE does not make the cat-back portion of a turbo-back exhaust (hopefully coming out soon). However, PDE's downpipe is compatible with any cat-back on the market for the USDM Impreza WRX - this way you can pick your cat-back section from any manufacturer to suit your own taste.

Quality is one of the biggest selling points for all of PDE's products - the TIG welding is performed by hand and looks unbelievable, the fitment is perfect every time, and the design/performance results are awesome! Unlike some manufacturers, PDE only releases fully tested and reliable products so the consumers don't have to suffer through revisions or manufacturing glitches due to poor planning/execution.

PDE is top-notch! :banana:

Matt

I have to concur...PDE quality is proven. I have tried the up & downpipes...perfect fit, top notch build quality, unique 02 sensor mounting to eliminate CELs on DP. I want another set for my FXT! :)

A note FWIW...our fastest WRX here is running PDE! :)

BUMP!

bump!

Bump for Matt. What a great guy! So easy to deal with. I ordered the flex uppipe and the catted downpipe. I'll post results soon.

bump!

Just installed the flex Uppipe and Catted Downpipe!! WOW! What a difference, Spool up is quite evident and the you can hear the turbo a little better, not too loud though.
I havent even reflashed my accessport to stage 2 yet. It made my Prodrive louder without all those cats. The quality of these pipes are incredible and quite easy to install. Not even an CEL yet.
Bump for Matt at SpeedAbsolute and PDE!!!

pppp

Thanks for the bumps!

(bump!)

products back in stock!

bump!

Looking to buy an up-pipe soon and the PDE flex looks really nice. My question is about the egt sensor. If I am reading correctly, you are saying to re-insert it and you will not have any problems. So many people recommend not re-inserting it and to use the resistor mod and many vendors are not including a bung provision in their product.
Kind of confusing what to do, also besides gaskets are their any other studs or necessary installation items not included?
Thank You,

05WRX, you can choose to reinstall the EGT sensor if you'd like, or you can plug the hole and use a resistor. PDE gives you the choice to decide what is best for your car. Most people reinstall the sensor and when it goes bad (which they usually do over time), they install the resistor. Or you could save yourself the anticipation of finally getting the CEL and just plug the hole now. Either way, it is simple to change once the uppipe is installed because of the way PDE rotates the bung to the side of the pipe instead of facing the front of the car.

The only thing the PDE doesn't come with is gaskets - studs are preinstalled so you don't have to hassle with removing the old ones. Please let me know if you have any other questions!

Matt

What is the life in miles of the high-flow Random Technology metal substrate race cat? I've been contemplating either the Downpipe w/ cat or Downpipe w/ removable cat. For only $126 more, I get the option of removing or the ability to replace the cat should it ever wear out. Is this even a concern or will my car wear out before the cat?

What is the life in miles of the high-flow Random Technology metal substrate race cat? I've been contemplating either the Downpipe w/ cat or Downpipe w/ removable cat. For only $26 more, I get the option of removing or the ability to replace the cat should it ever wear out. Is this even a concern or will my car wear out before the cat?
That is $126 dollars more.

Thanks for the math correction. Any comments on the real question?

RADON, theoretically the cat should last as long as the car. Damage from impact, leaded gas, etc. would be the only major concerns as those types of hazards do make it a wear item. The catalytic brick is made of stainless steel so rust isn't an issue. Also, people that want to run catted on the street and catless at the track might choose the removable version. Or you might choose it because the 6-bolt flanges and copper gaskets look so damn impressive under the hood!

Matt

Thanks for the reply Matt. Another question which arises... Does anyone have any data or experience with just the PDE cat and passing a sniffer emission test?

Thanks for the reply Matt. Another question which arises... Does anyone have any data or experience with just the PDE cat and passing a sniffer emission test?
This depends on the emissions laws in your state. PDE's testing showed that it sometimes passed the sniffer on test cars in California (it was hit or miss depending on the car and the modifications done) - this shows promise because CA has the toughest emissions standards. However, your mileage may vary as these products are sold for off-highway use only.

Matt

Would the catted DP fit the stock exhaust with a prodrive axleback?

Thanks for the reply. Pretty much what I expected for an answer :) I live in Georgia and if anyone has any experience please PM me.

This depends on the emissions laws in your state. PDE's testing showed that it sometimes passed the sniffer on test cars in California (it was hit or miss depending on the car and the modifications done) - this shows promise because CA has the toughest emissions standards. However, your mileage may vary as these products are sold for off-highway use only.

Matt

PM'd

Another PM. Thanks

hossak8 - PM'd you back.

Bump!

Bump for holiday shopping!

Christmas bump! Ask me about Christmas specials and prepare to be impressed by unmatched customer service!!! The customer comes first at Speed Absolute!

sales@speedabsolute.com

Matt

question...
i ordered a JGT500 Espelir exhaust fr my 04 WRX sedan and this exhaust bottles near the DP to a 2.25" ( i think )

1.) PDE catless downpipe would mate perfectly and cause no leaks?
a) no gaskets available with PDE catless downpipe

2.) I read many places of vendors who sell PDS that the PDE catless WILL NOT cause a CEL light. Is this true?

please answer at your soonest so I can decide on your products and purchase them soon.
thank you~

AWDrifter21,

The PDE works perfectly with any cat-back that uses the factory donut gasket or with any flat gasket cat-backs. Donut gasket models are preferred because you keep a factory flex-point in the system. Gaskets are not included with the PDE downpipe as you reuse the donut gasket and most people reuse the turbo to downpipe gasket as well.

PDE downpipes do not cause a CEL due to the design of the rear O2 sensor bung. However, there are some 2004 WRX owners that have received a slow rear O2 sensor response CEL. This does not happen very often but I wanted to let you know regardless. I believe some aftermarket engine management can take care of this.

Please let me know if you have any other questions!

Matt

do the pde up pipes come with studs?

yes, the studs are pre-installed on all PDE up pipes.

Matt