Ample quantities of 8CM turbine housing are now in stock. To upgrade your turbo to the more powerful 8CM housing simply select the 8cm housing option from the pull down menu. There is NO LONGER a $100 fee for the upgrade to 8CM housing. 01/08/07

The FP Green Model turbocharger is a direct fit flange compatible upgrade turbocharger for the Subaru STi and WRX that delivers 400-450whp capability with astounding spool up response and efficiency. The Green Model features a 49lb minute compressor and huge TDO6H sized turbine wheel with our own BRAND NEW 2007 updated aero 11 blade turbine head that is unlike anything else available. It is a water and oil cooled turbo that is supplied with the water and oil drain lines already bolted in place. Early water line compatibility issues have been eliminated.

The FPGreen 7cm ported exhaust housing (or optional higher peak flowing 8cm housing) retains the stock Subaru flange patterns. An internal wastegate is standard on the FPGreen with an adjustable 15psi high pressure actuator included AT NO ADDITIONAL CHARGE and is capable of filling the Subaru motor with over 30 psi of boost if called upon.

For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve port job. This larger flapper valve setup increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi because the increase flow bias to the wastegate will exaggerate flapper blow open in the upper RPM range causing boost taper in some cases, somewhat defeating the purpose of fitting the larger turbo in the first place.

The FPGreen Model Turbocharger features a 2.4" compressor housing inlet by default or an optional 3" cover can be selected for those running the large 3" air inlet tubes such as the Perrin tube to reduce pressure drop in the intake path of the turbocharger.

Those of you that are running 3" air inlet tubes on your turbochargers will benefit from reduced lag and increased whp by reducing the PR the compressor section must operate at to achieve a given boost pressure. The corresponding reduction in turbine back pressure is the key to this improvement.

Like all Forced Performance Mitsubishi Race Turbos, the FPGreen is fitted with the best quality thrust bearings made today. These upgrade steel bearings have over twice the surface area as a stock thrust bearing and are matched with oversize thrust collars for the most bullet resistant bearing stackup possible. Additionally all our journal bearings are hand picked for size and coated with a unique antifriction coating for long life. Forced Performance also carries stainless steel high flow oil feed lines to complete your installation.

For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.

As a side note if you have been shopping for an Upgrade turbo for your STi, you may have noticed other turbos being compared to the FP Green Model. Comparisons saying other turbos are as good as or better than the FP Green Model Turbocharger are easy to find in internet forums. We are proud to be considered the best, and we are flattered that shops and consumers alike consider our product to be the yardstick that all other turbos are measured by. Constant improvements and updates to the model ensure that theirs will always be a game of “catch up”. Our BRAND NEW TD06H Turbine head replacement for example is just another way we constantly search for new and creative ways of pushing the performance of a stock flanged upgrade higher year after year after year.