|
|
See details
|
AEM Water-Methanol Injection kit
The AEM Water Injection Kit is a safe and economical way to reduce air
inlet temperatures to increase boost pressure for more power.
Lower air inlet temperatures allow users to advance timing without having to
run higher-octane fuel. This is the most ...
Our Price: $410.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Agency Power Flow Fuel Rail - Subaru STI 04-06
The STI fuel rail kit gives the Boxxer engine equal fuel delivery unlike the stock setup. This kit will solve all your fuel distribution problems that the stock STI has when trying to obtain more horsepower.
Our Price: $318.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Agency Power Fuel Rail Kit - Subaru STI 07-09
The factory system runs the fuel in series which tends to cause certain cylinders to obtain less fuel. In higher boost applications, these cylinders can lean out dangerously causing the motor to fail.
Our Price: $364.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
AMS 600HP EJ25 Long Block - STi 04-07
The AMS Subaru STI 600HP EJ25 Long Block is the ultimate solution for high horse power reliability. We use only the best off the shelf and custom designed AMS spec components. Combine that with the latest in machine and assembly practices and you are assured only the best!
All our en...
Our Price: $12849.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
AMS EJ20/EJ25 Cam Sprocket Tool - STi 04-07
The AMS cam sprocket holder tools for all 4 cylinder Subaru boxer motors are a must for anyone planning to remove their cam gears. These tools are designed to hold the cam gear sprocket firmly in place while removing the center retaining bolt. AMS developed this tool to provide a simple removal p...
Our Price: $174.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
AMS EJ20/EJ25 Torque/Honing Plate - STi 04-07
The AMS EJ20/EJ25 Torque/Honing Plate is an essential tool when machining your engine block. The EJ20/EJ25 block is a lightweight aluminum casting. Since the overall mass of the block has been reduced, the controlled stresses of the cylinder head bolted to the block have become an important facto...
Our Price: $369.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
AMS Small Battery Kit: STi 04-07
This very easy to install piece will allow you to remove you heavy stock battery and mount a lightweight race battery on its side to not only lower the overall weight of the car but also lower the center of gravity.
The motor is flat, why shouldn’t the battery be?!
...
Retail price:
$279.99
Our Price: $189.95 save 32%
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
ARP Head Studs: Subaru STi 04-07
Building a STi to make more power?
Already making more power and your
coolant overflow tank is filling up for no good reason?
The factory head bolts
can begin to stretch with higher cylinder pressures and cause a enough space
between th...
Our Price: $203.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Boost Juice 4 Gallon Case
Boost Juice™ is Snow Performance’s proprietary mix of 49% methanol and 51% water.
It is made in a controlled environment with special care to make sure the ratios are accurate to result in a high performance water-methanol fluid formulated for use in the Boost Cooler™ injection sys...
Our Price: $47.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Bosch 044 Fuel Pump
The Bosch 044 fuel pump provides 300LPH of flow and operates at an amazing 72.5PSI.
Bosch 044 fuel pumps are comparable to the Walbro 255LPH high pressure
inline fuel pumps which can both support vehicles for up to 600-700
horse power.
Can be used in sequ...
Our Price: $239.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Brian Crower Stage 2 Cams: Subaru STi 04-07
Brian Crower high performance billet camshafts are CAD designed to optimize torque & horsepower throughout the power band.
TECH TIP: Plug and play application. Excellent all purpose cams. OEM spring OK. Includes Set of 4.
TECH Specs: Dur.: 272272br>Dur @ .050: 22...
Our Price: $748.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Brian Crower Stage 3 Cams: Subaru STi 04-07
Brian Crower high performance billet camshafts are CAD designed to optimize torque & horsepower throughout the power band.
TECH TIP: Requires fully built engine and BC0600
TECH Specs: Dur.: 280280br>Dur @ .050: 234234br>Lift (in): .410"/.410"
Lift ...
Our Price: $748.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cobb Tuning AccessPort V2.0 2004-2007 Subaru Impreza STi
The AccessPORT reprograms your vehicle's computer to
optimize the air/fuel ratio and ignition timing, increase boost, remove
the speed limiter, and more for performance results you can instantly
feel!
2004-2006 STIs can see gains of +25 Horsepower and +40 lb...
Our Price: $595.00
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cometic Head Gasket .40" STi 04-07
The cometic MLS (Multi Layer Steel) head gasket is comprised of three layers of stainless steel.
Cometic uses stainless steel for increased strength, it's ability to rebound and corrosion resistance.
The outer layers of the gasket are embossed and coated on both si...
Our Price: $48.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cosworth Camshaft Set: Subaru STi 04-07
Cosworth high performance billet camshafts are CAD designed to optimize torque & horsepower throughout the power band.
TECH Specs: 278 Degree Duration, 10.9mm Lift
Fits: Subaru ST...
Our Price: $1098.00
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cosworth Camshafts - STi 04-07
We are pleased to announce the availability of Cosworth Camshafts for the Subaru Impreza GC8 version IV (prod date 9/1997) - version VI (prod date 8/2000.
Our Price: $99300.00
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cosworth EJ25 Camshaft Set-AVCS - STi 04-07
Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures our camshaft designs are the most efficient in providing maximum usable power across the widest power band.
Our Price: $1260.95
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cosworth EJ25 Camshaft Set-AVCS - STi 04-07
Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures our camshaft designs are the most efficient in providing maximum usable power across the widest power band.
Our Price: $1098.00
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
See details
|
Cosworth EJ25 Camshaft Set-AVCS - STi 04-07
Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures our camshaft designs are the most efficient in providing maximum usable power across the widest power band.
Our Price: $1098.00
|
| |
- Shopping with us is secure. Guaranteed.
- View / Write reviews for this product.
- Outside of Michigan? You pay no sales tax!
|
|
|
stiperformanceparts.com is not affiliated, related to, or endorsed by Subaru of America or Fuji Heavy Industries LTD in any way. stiperformanceparts.com is an independent retailer of performance parts and accessories that is not affiliated with Subaru of America (Fuji Heavy Industries LTD). Use of trademarks is done on a fair use basis and without intent to compete with, or take advantage of Subaru or its trademarks. For more information on Subaru please visit http://www.subaru.com
