Just bolt the turbo on, add fueling and a good tune and prepare for a blast of acceleration. Garrett GT turbos offer more then just "peak HP" numbers. These GT turbos off more torque area under the curve and more "accessible" power then any other turbos series out there. We do recommend that you compliment your GT bolt-on turbo with a nice high flowing bellmouth downpipe and a high flowing inlet pipe to effortless channel air in and out of the turbo.Although every bolt-on GT turbo ships with a 3" inlet, we do provide a "stepdown" sleeve just in case you're forced to use the stock 2.25" inlet hose. However, as a rule of thumb, turbos, especially higher flowing units love as much inlet flow as possible. This promotes both quicker spoolup and better ultimate HP, with less boost pressure at the manifold. The 3 downpipe and bigger inlet is critical for reaching peak efficiency on the GT turbo. Please also be aware that some downpipes such as the stock catted downpipe, has a "no-flow" door at the wastegate flapper area.
This type of downpipe may not allow the wider swinging wastegate valve to open all the way, thus causing the possibility of a "boost-creep" condition or uncontrollable rise in boost. The GT3071R is a great match on the 2.5L, especially if you're looking for boost threshold that is close to stock but want enough airflow for 450+HP. Almost all the boost is available all the time even at part to medium throttle. Boost recovery between gearshifts is awesome with full boost ready even before upshift is complete as the STI lurches forward with shear enthusiasm at the onse of each gear.
The 2.0L driver should not rule out the use GT3071R if his HP target is in the same range. The modern generation wheels, coupled with an awesome wheel ratio, allows even the smaller displacement engine to provide adequate motivation to get the GT3071R going for an great powerband.The competition grade turbo still offers the best response and spool-time out of any unit in this flow range. Just like the GT3071R kit ATP-SUB-007 but with built in flange for Tial 44mm wastegate on the turbine housing. High flow, less exhaust backpressure, more precise boost control, even more power! Tial 44mm wastegate and dump tube included with this listing. Dual Ball-Bearing Turbocharger for the best spool time - You can still hear the wheel spinning after you shut off the motor. Flanged for 44mm External Wastegate (Wastegate Included with Dump Tube).
ATP Prioprietary Turbo Exhaust Housing with integrated external wastegate flange. Capable of 450 horsepower or more.
Direct bolt-on installation to factory turbocharger location. Includes all lines and fittings necessary to complete installation. Please feel free to check out my. The item "ATP STOCK LOCATION BOLT-ON GT3071R TURBO KIT FOR SUBARU 02-14 WRX/04-16 STI+EWG" is in sale since Wednesday, March 2, 2016.This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Turbos, Nitrous, Superchargers\Turbo Chargers & Parts". The seller is "boombop" and is located in Ontario, California. This item can be shipped worldwide.