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External Wastegate Up Pipe w/ Dump Tube 38/40mm V-Band WRX/STI/LGT/FXT

  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Wastegate Exit Solidworks Flow Analysis - Competition vs. GrimmSpeed
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • Design view in CAD of external outlet angle. This part was specifically engineered for optimal flow.
  • Tubing thickness compared to competitors
  • Flange thickness compared to competitors
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe  - Hardware
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Dump Tube
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Dump Tube
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Up Pipe
  • GrimmSpeed Subaru EWG Dump Tube
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
  • GrimmSpeed Subaru EWG Up Pipe w/ Turbosmart Wastegate
SKU:
059001
Rating:
Price:
$352.99

Have questions about fitment or applications? Contact Us


Product Description

It appears that you’re not the only one with excellent taste in premium automotive components! Unfortunately, this product is temporarilly out of stock. Please contact customer service via phone (612-379-0000) or email for details!

Are you ready for fast spool-up and increased top-end power??

An External Wastegate (EWG) allows exhaust gases to be diverted prior to

GrimmSpeed Subaru WRX STi LGT FXT 38mm External Wastegate EWG Up Pipe

entering the turbo; creating quicker turbo spool. The GrimmSpeed™ EWG has a larger diameter than a stock internal wastegate; this allows the exhaust gas to be released faster, which improves boost control, maintains maximum boost longer in the rpm range. All of these together will give you a 10-40 HP INCREASE. Moving the wastegate out of the turbo relieves the turbo from the massive amounts of turbulence that the stock internal wastegate creates.

The entire EWG Up-Pipe is made of 304 SS(flanges, flex, tubing) and has a pipe-wall thickness of 14 Gauge, this is the most "heavy-duty" pipe you will find. Many other pipes use cheap thin steel and are marketed as "super light weight", not us. The inlet size is 1.92" and the pipe tapers down to 1.72” which acts as a funnel as it moves into the turbo allowing for the smoothest transition and best air-flow quality. The one of a kind Triple Layer Flex Joint is not located in the bend, which adds to the life expectancy of the flex section. Our outlet size is a perfect match to the most common stock location turbos allowing for a smooth transition into the turbo.
 
Also available with the EWG Up-Pipe package, a bracket to hold the stock internal wastegate shut. This bracket is helpful because the turbo door does not need to be welded shut, decreasing the chance for leaks and allowing for easy removal if necessary. Availabe for many popular turbos, check the box below if you would like to add one to your order.

The GrimmSpeed™ EWG Up-Pipe Kit fits more downpipes than any other EWG Up-Pipe on the market. Even fits large TurboXS 4" Bellmouth Downpipe!!

NOTE: Wastegate is not included. Image is only for demonstration purposes.

Quick Facts:

  • TRIPLE LAYER Quality Flex Joint - Gives you extra durability compared to competitors single and double layer flex joints.
  • Flow through Flex - There are no big steps in the flow path of our flex joint. Our flex is not located on a bend so there is very minimal flow loss(if any) through the flex.
  • Curved EWG Side Outlet - Our ewg up pipes come with an angled side outlet which allows us to obtain optimal flow to the external wastegate.
  • 2.0mm Piping Thickness - almost all pipes on the market use a 1.5mm thick piping wall, not us. We use a 2mm thick piping wall(33% thicker than all of our competition!)
  • Pipe to Flange Connection - Much smoother connection. Tubes are recessed into flanges for smooth flow.
  • 1.92" Inlet = Perfect match to gasket allowing a little room for gasket movement(anything bigger, ie 2", will almost be guaranteed to put the gasket in the flow which is horrible for flow)
  • 1.75" Outlet = Narrowing down from 1.92 to 1.75 acts as a funnel. Also very close match to most common turbos so you have much less step going into the turbo(unlike a straight through 2" which creates a huge step going into most common turbos vf's, tdo4s, etc)
  • Massive 304SS flanges
  • 10+whp gain
  • Minimal internal steps for maximum flow
  • Complete stainless steel construction(pipe, flex section, flanges)
  • Optional ceramic coating
  • Flex joint that is NOT located in the bend which adds life expectancy to the flex section. many other up pipes have a flex right in a sharp bend so all the exhaust/turbulence is hitting up against it.
  • Reduce turbo lag
GrimmSpeed Subaru WRX STi LGT FXT 38mm External Wastegate EWG Up Pipe



For more information about EWGs:
http://forums.nasioc.com/forums/?p=1086591&a
http://www.iwsti.com/faq-ewg.html
http://forums.nasioc.com/forums/t=1512706
http://forums.nasioc.com/forums/t=1519644


Informational video:  

 

GrimmSpeed is now exclusively offering TURBOSMART products! The Compgate 40mm Wastegate fits the 38mm flange on our up pipe.








Product Videos

Grimmspeed 38mm Externally Wastegated Uppipe- Whats in the Box? (04:15)
http://www.rallysportdirect.com/GrimmSpeed-Ceramic-Coated-38mm-V-Band-External-Wastegate-Uppipe-Subaru-Models-inc-2002-2011-WRX-STI&source=Youtube-WITBToday on Whats in the Box we are featuring the Grimmspeed 02-10 WRX/STi/LGT/FXT Externally Wastegated Uppipe. Check our website for fitment. We hope you have enjoyed this segment of "Whats in the Box"
  • Grimmspeed 38m...
    http://www.rallysportdirect.com/GrimmSpeed-Ceramic-Coated-38mm...

Product Reviews

Write your own product review

Product Reviews

  1. Spool on this thing is unreal

    Posted by frank zotynia

    this is the way subarus should come from the factory. Spool on this thing is unreal compared to stock. i had a stage 2 setup and went with a grimmspeed ebcs, uppipe and tial ewg + tune and it feels like a new car. its one of the best mods you can do.


  2. blow me away with the quality and craftsmanship of your parts

    Posted by Chris Anderson

    I ordered this last Wednesday and recevied it on Friday! Holy cow fast shipping! I then was able to get my hands on it and I must say that you guys continue to blow me away with the quality and craftsmanship of your parts. The Thermal coating is awesome and the welds and flanges are remarkable! I just got it on the car and fitment is A++. Cant wait to fire it up and see the gains. Thanks for another awesome product!


  3. create unbelievable spool

    Posted by Patrick Justice

    Just got this on the car and it left me speechless. The uppipe, ewg, and ebcs combine to create unbelievable spool. I was trying to be timid and at only half throttle I was pushed into my seat. This IS the ewg kit to have if you are in the market for one. Period.


  4. Awesome

    Posted by Lorenzo Jarrett

    This thing is awesome...Must I say More!


  5. build quality is amazing, and shipping was lightning fast

    Posted by Master C

    have made 2 orders from grimmspeed. I have the 38mm ewg kit with black cermaic coating and i have all their exhaust gaskets including the 2x thick up pipe to manifold gasket. amazing products, build quality is amazing, and shipping was lightning fast. cant wait to get my header pnp'd along with my intake manifold and TB.


  6. turbo "hits" much harder than before

    Posted by Blown95ImpalaSS

    I always read on this site that going with an external wastegate would only provide ""better boost control. However, because the stock upipe is restrictive, the grimmspeed unit along with a tial 38mm gate gave me not only better boost control but better throttle response and more power/torque throughout the rpm range. here's what I noticed over the past few weeks

    1)normal/off boost driving is much smoother and it is nearly impossible to ""lug"" the car at low rpms. (this is probably due to the larger diameter/better designed upipe and not the ewg)

    2)when the gate opens at WOT the turbo "hits" much harder than before. Right around 3400 rpms I get smushed into my seat, whereas before the road to full boost was much more tame/gradual. Previously I had to jack up the wastegate duty in th summer to get remotely quick boost response that sometimes caused a spike. With the ewg, a humid day requires a 2-3% adjustment of the wg duty for immediate response. On the same note, my boost gauge needle looks like it might break off from such rapid movement

    3) I am seeing ~2 mpg more on the highway when driving conservatively."