ARP Subaru WRX EJ20 & EJ25 Head Stud Kit
260-4701
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
This ARP head stud kit is made from 8740 chromemoly steel, 190,000 psi tensile strength. It is precision centerless ground and thread rolled to...
ARP Subaru FA20 2.0L 4Cyl Head Stud Kit
260-4301
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated,...
IAG Half Moon Valve Cover Cam Seals (4) For 02-06 Subaru WRX / 04-06 STI / 04-06 FXT / 05-06 LGT (Black Finish)
IAG-ENG-2000BK
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
Seals
IAG billet aluminum half moon valve cover cam seals replace the OEM style rubber seals that are prone to leaking and failure as they...
ARP 99+ Subaru EJ Series Phase 2 SOHC Head Stud Kit
260-4702
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
Head Studs & Bolts
New products
ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is placed vertically in special racks and...
ARP Subaru EJ Series DOHC Custom Age Head Stud Kit
260-4704
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
CUSTOM AGE 625+: This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness, with complete resistance to atmospheric corrosion and oxidation....
IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25 and FA20 DIT
IAG-ENG-1700
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance 1/2 Inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25 and FA20...
IAG / ARP 14mm Head Stud Set For Subaru 06-14 WRX, 04+ STI, 05-09 Legacy GT, 04-13 Forester XT
IAG-ENG-1711
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
ARP 14mm Head Stud Set is designed for use on high horsepower Subaru engines. The larger size of the stud increases its load capacity...
Subaru OEM Power Steering Belt Cover Bracket - Multiple Subaru Fitments
23791AA002
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
OEM Power Steering Belt Cover Bracket by Subaru Subaru OEM replacement bracket for the power steering belt. Required for installation of some aftermarket alternator...
ARP Subaru EJ25 DOHC Turbo Rod Bolt Kit
260-6302
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
A large number of connecting rod manufacturers have chosen ARP bolts as standard equipment. They’re proud to advertise their products as being equipped with...
ARP Subaru EJ Series Press Fit Rod Bolt Kit
260-6301
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
A large number of connecting rod manufacturers have chosen ARP bolts as standard equipment. They’re proud to advertise their products as being equipped with...
ARP Subaru WRX EJ20 & EJ25 Block Bolts
260-5401
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
New products
*Main Studs* There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well...
IAG AOS Pitch Mount Bracket for 06-07 Subaru WRX / 04-07 STI, 2004-08 FXT
IAG-ENG-7802
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance AOS (Air Oil Separator) pitch mount bracket is designed to replace the standard mounting bracket included with IAG's AOS kits. The...
IAG AOS Strut Tower Mounting Bracket For Rotated Turbo Kits Fits 2008-14 Subaru WRX / STI, 2005-09 LGT
IAG-ENG-7801
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance AOS (Air Oil Separator) Strut Tower mounting bracket was originally designed to replace the standard mounting bracket included with early version...
IAG AOS Strut Tower Mounting Bracket for Rotated Turbo Kits Fits 2006-07 WRX, 2004-07 STI, 2004-08 FXT
IAG-ENG-7800
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance Air Oil Separator Strut Tower mounting bracket is designed to replace the standard mounting bracket included with IAG's AOS kits produced...
IAG AOS Pitch Mount Bracket for 2008-14 Subaru WRX / STI, 2005-09 LGT
IAG-ENG-7803
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance AOS (Air Oil Separator) pitch mount bracket is designed to replace the standard mounting bracket included with IAG's AOS kits. The...
IAG Red AVCS Camshaft Sensor Delete Plugs (Pair) For 2002-05 Subaru WRX w/ AVCS Heads
IAG-ENG-2060RD
All
Best selling products
Block Off Plates
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
IAG AVCS Camshaft Sensor Delete Plugs (Pair). Designed for early 2002-2005 WRX's that have upgraded to AVCS cylinder heads but do not have engine...
IAG V2 Timing Belt Guide for 2002-14 Subaru WRX, 04+ STI, 05-09 LGT & 04-08 FXT (Black Finish)
IAG-ENG-5101BK
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
The IAG Performance billet timing belt guide is the best method to prevent you EJ motor from skipping a beat. Engineered and manufactured in...
IAG Black AVCS Camshaft Sensor Delete Plugs (Pair) For 2002-05 Subaru WRX w/ AVCS Heads
IAG-ENG-2060BK
All
Best selling products
Block Off Plates
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
IAG AVCS Camshaft Sensor Delete Plugs (Pair). Designed for early 2002-2005 WRX's that have upgraded to AVCS cylinder heads but do not have engine...
IAG Half Moon Valve Cover Cam Seals (4) For 02-06 Subaru WRX / 04-06 STI / 04-06 FXT / 05-06 LGT (Silver Finish)
IAG-ENG-2000SL
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
New products
Seals
IAG billet aluminum half moon valve cover cam seals replace the OEM style rubber seals that are prone to leaking and failure as they...
IAG Silver MAF Sensor Block Off Plate For 2002-07 Subaru WRX / STI
IAG-AFD-4000SL
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
MAF Block Off Plates
New products
The IAG Performance MAF Sensor Block Off Plate for the 2002-07 Subaru WRX / STI is designed to seal the MAF sensor location on...
IAG MAF Sensor Block Off Plate For 2008-14 Subaru WRX, 2008+ STI, 2005-09 LGT (Silver Finish)
IAG-AFD-4001SL
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
IAG Performance
MAF Block Off Plates
New products
The IAG Performance MAF Sensor Block Off Plate for the 2008-14 Subaru WRX, 2008+ STI & 2005-09 LGT is designed to seal the MAF...
PERRIN Subaru Oil Temp/Pressure Adapter
ASM-GAU-100
All
Best selling products
Commerceinstruments Best Selling Products
Engine Build Components
Engine Hardware & Accessories
Gauge Adapters
New products
Perrin Performance
OVERVIEW The PERRIN Oil Temperature and Pressure Adapter is essential for proper and easy installation of your oil temperature and oil pressure sensors. ...
