Go Fast Bits Evo 4-9 Under-Drive Crank Pulley w/ Belt
New from GFB is the Under-drive Crank Pulley for the Mitsubishi EVO VIII & IX. Like all GFB pulleys, the material used is 6000 series aluminium alloy billet, which nets a large weight saving of 1.4 kg over the factory pulley, without sacrificing strength or reliability.
The kit comes complete with the required serpentine belt, and installation is dead easy - no specialized tools are required and it can be done in as little as 30 minutes. The accessories are under-driven by 20%, which does NOT compromise their performance at low RPM, but does help reduce parasitic losses at high RPM.
Like all GFB lightweight under-drive pulleys, the improvement to the car is felt in the form of sharper throttle response (particularly off boost), and the engine feels more willing to rev. A useful comparison is the difference between performance on a cool evening vs. a warm day, or having the A/C off vs. on.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 - 2015 | Mitsubishi | Lancer | ES |
| 2011 - 2014 | Mitsubishi | Lancer | ES Sportback |
| 2003 - 2014 | Mitsubishi | Lancer | Evolution |
| 2008 - 2015 | Mitsubishi | Lancer | Evolution GSR, GTS |
| 2005 - 2015 | Mitsubishi | Lancer | Evolution MR |
| 2005 - 2009 | Mitsubishi | Lancer | Evolution RS |
| 2006 - 2010 | Mitsubishi | Lancer | Evolution SE |
| 2011 - 2015 | Mitsubishi | Lancer | GT, GT Sportback, SE Sportback |
| 2014 | Mitsubishi | Lancer | Limited Edition |
| 2005 - 2006 | Mitsubishi | Lancer | LS Diamond |
| 2003 - 2006 | Mitsubishi | Lancer | LS, OZ Rally |
| 2010 - 2011 | Mitsubishi | Lancer | Ralliart Sportback, GTS Sportback, Evolution MR Touring |
| 2004 - 2015 | Mitsubishi | Lancer | Ralliart, DE |
| 2006 - 2015 | Mitsubishi | Lancer | SE |
| 2015 | Mitsubishi | Lancer | SE Limited Edition, Evolution Final Edition, SE Limited Edition Sportback |
| 2009 | Mitsubishi | Lancer | Special Edition |
| 2004 | Mitsubishi | Lancer | Sportback, Sportback Ralliart |