STM Water Pump Block Off Plate for Evo 4-7 (EVO47-WPBO) Magnus Tested with a stock cat-back

Tested with a stock cat-back we saw gains of +18 TQ and +8 HP without changing the tune

2003-2006 Mitsubishi Evolution VIII IX

The mount uses the spaces between the panels with no need to dismantle the interior and no damage is caused by proper installation

Part Number: Size: 5M2221H-STD Standard Size 5M2221H-

2004-2007 Subaru STi 3076O 2008-2014 Subaru WRX

STM Water Pump Block Off Plate for Evo 4-7 (EVO47-WPBO) Magnus Tested with a stock cat-backThe billet STM water pump block off plate for Evo 4 5 6 7 is designed for racecars allowing you to completely block off remove your water pump. Perfect for cars running a filled block. Made in house at STM from 6061 billet aluminum and includes 5 stainless bolts for a flush, clean install. Vehicle Fitment: CN9A 1996 1997 Evolution IV CP9A 1998 2000 Evolution V VI CT9A 2001 2002 Evolution VII Features: 6061 billet aluminum 3 8" thick Stainless bolts