Garrett G25-550 Turbocharger – Internal Wastegate
As soon as Garrett launched their G25 small-frame turbo series rated for 1.4L-3.0L displacement at 300-550 horsepower, we knew this was the perfect solution for our little 4 cylinder Kdm builds! We installed the G25-550 on our big turbo shop car and she absolutely rips with minimal turbo lag compared to past big turbo options. Power comes on smooth and pulls all the way through red line every shift. This turbo feels as good under-tuned as it does at max capacity!
Garrett’s G25-550 is the smallest turbo in the G-Series turbocharger lineup, but don’t let that dissuade you. For its size, it makes plenty of power and spools fast. A clean-slate ball bearing turbo with state-of-the-art aerodynamics, this turbo is more compact yet outflows all comparable products on the market.
New compressor and turbine aero combined with exotic high-temperature alloys allowed engineers to push the limits of performance. Carrying nothing over from the old gen GT/GTX, the G-series 60mm exducer billet compressor wheel redefines what we thought was possible for a given airflow range—flowing +10 lbs/min (+22% gain) compared to the outgoing GTX2860R Gen II turbo it supersedes.
Details:
- Compressor Wheel Exducer: 60mm
- Compressor Wheel Inducer: 48mm
- Compressor Wheel Trim: 65
- Compressor Wheel Material: Forged Billet Aluminum Alloy
- Compressor Wheel A/R: 0.70 A/R
- Max Flow Rate: 50 lb/min
- Max Recommended Turbo Shaft Speed: 185000 RPM
- Compressor Housing Connections:
- Inlet: 3.0″ Hose Coupler
- Outlet: 2.0″ Hose Coupler
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