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SKU: 107-1001 | UPC: 672036037192
ARP Mitsubishi 4B11T Cam Tower Stud Kit 2008-2015 Lancer Evolution X & Ralliart
ARP 107-1001 Cam Tower Stud Kit replaces factory bolts on Mitsubishi 4B11T engines in 2008-2015 Lancer Evolution X GSR MR MR Touring models and 2009-2010 Ralliart variants. These studs clamp cam towers to prevent lift under high boost pressure and extreme RPM. Add this kit to maintain valvetrain stability in high-performance street and track setups.
Key Features
- ARP2000 Alloy Construction: Forged chromoly steel with 200,000 psi tensile strength holds cam towers under 40+ psi boost
- Precise OEM Dimensions: 8mm x 1.25 threads match factory specs for direct replacement no machining needed
- Complete Kit Contents: Includes 4 studs 8 washers and 4 nuts for intake and exhaust cam towers
- Black Oxide Finish: Prevents corrosion and galling during assembly and disassembly
- Proven Torque Specs: ARP recommends 25 ft-lbs initial torque plus 90-degree turn for clamping force
Product Notes
- Inspect cam tower surfaces for flatness before installation
- Use ARP Ultra-Torque lubricant on threads and under nut faces
- Kit weighs 0.38 lbs and ships in 5 x 3 x 1 inch box
Installation Notes
- Professional installation recommended.
- Remove stock bolts and clean threads thoroughly
- ARP studs require thread locker on nuts for vibration resistance
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2015 | Mitsubishi | Lancer | Evolution GSR |
| 2008-2015 | Mitsubishi | Lancer | Evolution MR |
| 2010-2011 | Mitsubishi | Lancer | Evolution MR Touring |
| 2009-2010 | Mitsubishi | Lancer | Ralliart |
| 2009-2010 | Mitsubishi | Lancer | Ralliart Sportback |
Why Choose ARP?
- Trusted by NHRA and SCCA champions for over 50 years
- CNC machined in California with heat-treated ARP2000 material
- Exact fit engineering from factory reverse measurements
Frequently Asked Questions
-
Q: Does this fit all 4B11T Evo X engines?
A: Yes direct fit for 2008-2015 Lancer Evolution X GSR MR MR Touring and 2009-2010 Ralliart 4B11T variants -
Q: What material are the studs made from?
A: ARP2000 alloy steel with 220,000 psi ultimate tensile strength and black oxide coating -
Q: What is the ARP warranty?
A: Limited lifetime warranty against manufacturing defects when installed and torqued per ARP instructions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box 5 x 3 x 1 inches
- Weight: 0.38 lbs
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