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ATI Damper - 6.78" - Aluminum - 6 Groove (2003 - 2006 Mitsubishi Evo 8 4G63 w/ Integra Lower Cam Drive) ATI918250

ATI Damper - 6.78" - Aluminum - 6 Groove (2003 - 2006 Mitsubishi Evo 8 4G63 w/ Integra Lower Cam Drive) ATI918250

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Item#:
APPATI918250
$460.52
Price: $437.39
(You save $23.13 )
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UPC:
800157029820
Availability:
Regularly stocked product
LTL:
N
MPN:
ATI918250
Product ID:
361454
Proposition 65:
N
Category:
Engine Components>Crankshaft Dampers
Core:
N
Clearance Item:
N

ATI Damper – 6.78in – Aluminum – 6 Groove – (2003–2006 Mitsubishi Evo 8 4G63 w/ Integrated Lower Cam Drive) – ATI918250

High-Performance Aluminum Super Damper for 2003–2006 Mitsubishi Evo 8 4G63

The ATI 6.78-inch Aluminum Super Damper (part ATI918250) is built for 2003–2006 Mitsubishi Lancer Evolution VIII models equipped with the legendary 4G63 engine. Featuring a 6-groove pulley design and an integrated lower cam drive, this damper offers unmatched harmonic control, smoother power delivery, and improved reliability under extreme conditions. Constructed from lightweight aluminum and SFI 18.1 certified, it’s perfect for both high-boost street cars and competition builds demanding precision and strength.

Performance Highlights

  • 6.78-inch outer diameter ensures precise harmonic control and improved balance
  • 6-groove pulley supports factory accessory belts for simple installation
  • Integrated lower cam drive design eliminates vibration at high RPM
  • Lightweight aluminum construction reduces rotating mass for quicker revs
  • Perfect for turbocharged 4G63 engines operating under high stress and boost
  • SFI 18.1 certified for race-approved safety and reliability
  • Fully rebuildable for long-term use and serviceability

Quick Specs

  • Outer Diameter: 6.78 inches
  • Material: Aluminum
  • Pulley Type: 6 Groove
  • Design: w/ Integrated Lower Cam Drive
  • Engine: 4G63 Turbocharged I4
  • Certification: SFI 18.1
  • Applications: 2003–2006 Mitsubishi Lancer Evolution VIII 4G63
  • Part Number: ATI918250

Why Choose the ATI 6.78in Super Damper for Your Evo 8?

The ATI918250 is engineered for enthusiasts who demand maximum reliability and precision from their Mitsubishi Evo 8. The integrated lower cam drive ensures perfect timing accuracy and harmonic stability at high RPM — critical for turbocharged 4G63 engines. Combined with its lightweight aluminum body and SFI 18.1 certification, this damper enhances performance, durability, and smoothness whether you’re street driving, tracking, or running high boost levels.

Frequently Asked Questions

Is this damper a direct replacement for the OEM unit?

Yes. The ATI918250 is a direct-fit upgrade for the 2003–2006 Evo 8 4G63 and installs without modification.

Does it support factory accessories?

Absolutely. The 6-groove pulley maintains OEM belt alignment for all accessory drives.

What does “Integrated Lower Cam Drive” mean?

It refers to ATI’s precision-machined design that integrates the lower camshaft drive into the damper assembly for improved timing and reduced vibration.

Is this damper suitable for high-boost or race setups?

Yes. The SFI 18.1-certified construction makes it ideal for high-boost, high-RPM race and street applications.

Vehicle Fitment

  • 2003 Mitsubishi Lancer Evolution VIII 4G63 Turbo
  • 2004 Mitsubishi Lancer Evolution VIII 4G63 Turbo
  • 2005 Mitsubishi Lancer Evolution VIII 4G63 Turbo
  • 2006 Mitsubishi Lancer Evolution VIII 4G63 Turbo

Contact Beefcake Racing

Beefcake Racing is your trusted source for ATI Super Dampers and Mitsubishi performance parts. For expert help or to place your order, email sales@beefcakeracing.com or call 1-855-827-7223. Our team can help you find the right damper for your Evo 8 build and performance goals.

CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov