P&L Motorsports Subaru WRX/STI EJ20 & EJ25 Exhaust Manifold Header + External Wastegate Bundle


Configuration: 38mm Up-pipe and Dump Tube Only

  • 38mm Up-pipe and Dump Tube Only
  • 44mm Up-pipe and Dump Tube Only
  • Add 38mm TiAL Wastegate
  • Add 44mm TiAL Wastegate
  • Stock Location Up Pipe

Ceramic Coating: None

  • None
  • Silver
Out of stock

american expressapple paydiscovermasterpaypalvisa
The P&L Motorsports Subaru WRX/STI EJ20 & EJ25 Exhaust Manifold Header is constructed of fully T304 stainless steel schedule 10 piping and custom CNC cut T304 stainless flanges. Our unique design effectively minimizes back pressure to increase horsepower and turbo output. Incorporating a 4-into-1 merge design, this system features an equal length runner arrangement in order to help reduce the amount of exhaust gas backpressure, while still allowing for excellent sound output and tone. An equal length design was chosen due to the increased efficiency over the traditional un-equal length stock manifold. Designed, tested, and fabricated in-house from start to finish, this header will increase horsepower output, when combined with accompanying ECU calibration. All P&L fabricated exhaust components come standard with our 3-year limited warranty.

  • 304 Stainless Steel Schedule 10 Thickness Piping
  • 304 Stainless Steel 3/8” Thick Flanges
  • 1.5” Inner Diameter Primaries
  • Low Angle 4-into-1 Merge Section
  • 2.00″ Inner Diameter Merged Section
  • Subaru OEM Exhaust Gaskets
  • Standard Front o2 Sensor Bung
  • TIG Welded Construction
  • Brushed Steel Finish Piping
  • 3 lbs Weight Reduction Compared to Stock Exhaust Manifold

  • Full Schedule 10 Piping Exhaust Manifold
  • 2.00” 2 Bolt Flange Gasket (Qty. 1)
  • Exhaust Manifold to Engine Gasket (Qty. 2)
  • New Exhaust Hardware (Qty. 8 Nuts and 2 Bolts)

  • 04-Current Subaru STI w/ EJ25
  • 02-14 Subaru WRX w/ EJ20 or EJ25
  • Will Fit With Most Aftermarket Oil Pans Including Moroso and Killer B

External Waste Gates allow for a quicker spool of your turbo by redirecting exhaust gases before they enter the turbo. Our EWG is made from 304SS SCH10 piping and fully TIG welded in-house at P&L. Our EWG Up-Pipe is the toughest, most durable EWG Up-Pipe available on the market, period! Available with or without the made-in-the-USA TiAL Wastegates.


  • Superior boost control & response
  • Improves engine life by reducing exhaust backpressure
  • Increases HP and Torque by improving overall volumetric efficiency
  • TiAL MVS 38mm or 44mm Wastegate
  • Warranty Information
  • Lower Gasket, Clips & Bolts

Designed, Machined, and Assembled in the USA


38mm Up-pipe and Dump Tube Only, 44mm Up-pipe and Dump Tube Only, Add 38mm TiAL Wastegate, Add 44mm TiAL Wastegate, Stock Location Up Pipe

Ceramic Coating

None, Silver

Not enough items available. Only [max] left.
Add to WishlistBrowse WishlistRemove Wishlist
Shopping cart

Your cart is empty.

Return To Shop

Add Order Note Edit Order Note
Estimate Shipping
Add A Coupon

Estimate Shipping

Add A Coupon

Coupon code will work on checkout page