View our Specials! Coupon Code: SaveIn2026
Koni Suspension Sale
X
Vehicle Set: Click here to shop 2003 Porsche 911 parts.

11137-8 Manley Performance Extreme Duty Valves

Manley Performance Extreme Duty Valves for a 2002-2012 Subaru Impreza and 2005-2006 Saab 9-2X Aero.

11137-8 Manley Performance Extreme Duty Valves image 1
Image(s) for display purposes only. Actual product may vary.

Share on Social MediaShare 11137-8 Manley Performance Extreme Duty Valves - 02-12 Impreza / 05-06 9-2X Aero  on FacebookShare 11137-8 Manley Performance Extreme Duty Valves - 02-12 Impreza / 05-06 9-2X Aero  on TwitterShare 11137-8 Manley Performance Extreme Duty Valves - 02-12 Impreza / 05-06 9-2X Aero  on Pintrest
Part Number: 11137-8
UPC: 807298030845
MSRP: $685.43
Rating: No Rating 0 Reviews
$548.34
Save with this coupon:
Coupon Code:SaveIn2026

Free Shipping (Continental US) Free Shipping
New with manufacturer warranty
Availability: IN STOCK (4)
SHIPS FROM MANUFACTURER
(Last checked: 07/08/2026)

Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

Have a Question?

Description:

Fitment:


View other Applications of Manley Performance Extreme Duty Valves

Product Reviews:


Warning WARNING: Cancer & Reproductive Harm www.p65warnings.ca.gov

Related Links:

Saab 9-2X Valves
Subaru Impreza Valves

Similar Valves:

Manley Performance Extreme Duty Valves 2012-01
IN STOCK
GSC Power Division 2012-01
GSC Power Division Intake Valves -STD
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 36mm Head (STD) - Single
$44.67
Manley Performance Extreme Duty Valves 11140-8
IN STOCK - LOW
Manley Performance 11140-8
Manley Performance Race Flo Valves
Manley 00-03 Subaru WRX (EJ20) / 04 STi Intake 37mm Stainless Race Flo Valves
$211.41
Manley Performance Extreme Duty Valves 2017-01
IN STOCK
GSC Power Division 2017-01
GSC Power Division Exhaust Valves +1mm
GSC P-D Subaru EJ20/EJ257 Turbo Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) -Single
$59.99
Manley Performance Extreme Duty Valves 2013-01
IN STOCK
GSC Power Division 2013-01
GSC Power Division Exhaust Valves +1mm
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Single
$44.85
Manley Performance Extreme Duty Valves 11171-8
IN STOCK - LOW
Manley Performance 11171-8
Manley Performance Race Master Valves
Manley Subaru WRX EJ205/STi EJ257 33mm Race Master Exhaust Valves (Set of 8)
$211.41
Manley Performance Extreme Duty Valves 2014-01
IN STOCK
GSC Power Division 2014-01
GSC Power Division Intake Valves +1mm
GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single
$44.79
Manley Performance Extreme Duty Valves 2015-01
IN STOCK
GSC Power Division 2015-01
GSC Power Division Exhaust Valves -STD
GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-32mm Head(STD)
$59.60
Manley Performance Extreme Duty Valves 11155-8
IN STOCK
Manley Performance 11155-8
Manley Performance Race Master Valves
Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Race Master Valves
$211.41

Related Products:

Manley Performance Extreme Duty Valves MB5382XPGC.026
IN STOCK
King Engine Bearings MB5382XPGC.026
King Engine Bearings Performance Main Bearings
King Subaru EJ20/EJ22/EJ25 Including Turbo pMaxKote Performance Main Bearing Set - Size +.026mm
$176.66
Manley Performance Extreme Duty Valves 14416-4
IN STOCK
Manley Performance 14416-4
Manley Performance Conrods TTuff I-Bm -4 Cyl
Manley Subaru WRX / STI (EJ205/STi EJ257) Turbo Tuff Pro Series I Beam Connecting Rod Set
$1,028.90
Manley Performance Extreme Duty Valves CR4125XPG0.25
IN STOCK
King Engine Bearings CR4125XPG0.25
King Engine Bearings Rod Bearings
King Subaru EJ20/EJ22/EJ25 (Suites 52mm Journal Size) Tri-Metal Perf Rod Bearing Set - Size +.025mm
$63.42
Manley Performance Extreme Duty Valves MB5739XPG
IN STOCK
King Engine Bearings MB5739XPG
King Engine Bearings Main Bearings
King Engine Bearings Subaru EJ20/EJ22/EJ25 Tri-Metal Perf Main Bearing Set - Size +.002mm
$130.66
Manley Performance Extreme Duty Valves TCKWP328RB
IN STOCK
Gates TCKWP328RB
Gates Racing Timing Belts
Gates Subaru 06-07 WRX & 04-10 STi & 05-09 LGT Perf Racing Timing Belt Component Kit w/ Water Pump
$474.45
Manley Performance Extreme Duty Valves PSP-BRK-402RD
IN STOCK
Perrin Performance PSP-BRK-402RD
Perrin Performance Master Cyl Support Bracket
PERRIN 08-14 Subaru WRX / 08-12 Impreza Master Cylinder Bracket - Red
$130.50
Manley Performance Extreme Duty Valves 22180-16
IN STOCK
Manley Performance 22180-16
Manley Performance Titanium Retainers
Manley Subaru WRX/STI 16pc Valve Springs (1.050/.755) (for use with 23180-16 Retainers)
$141.97
Manley Performance Extreme Duty Valves TS-SU-200-PL
IN STOCK - LOW
Torque Solution TS-SU-200-PL
Torque Solution Engine Mounts
Torque Solution Engine Mounts w/ Mount Plates: Subaru WRX 2006-2015 / STI 2006-2016
$319.24

For more information on Manley Performance part number 11137-8, you can visit the official Manley Performance website.