Garrett G Series Turbo Lineup 2026: What You Need to Know

What's New in the 2026 G Series

Garrett Motion dropped their 2026 G Series turbo lineup updates at SEMA 2025, and the changes address real-world feedback from the tuning community. The biggest news is the introduction of the G35-900, which finally gives us a proper middle ground between the G30-770 and the massive G42-1200.

The updated garrett g series turbo lineup 2026 focuses on three main improvements: faster spool times through revised compressor wheel aerodynamics, better heat management in the turbine housing, and expanded A/R ratio options across the entire range.

Garrett also listened to complaints about the G25's laggy behavior on smaller displacement engines. The new G25-660 gets a redesigned compressor wheel that moves the efficiency island closer to lower flow rates, making it actually usable on 2.0L and smaller builds.

Model-by-Model Breakdown

Here's what changed in each model for 2026:

G25-660: New 11-blade compressor wheel design improves response on 1.8-2.5L engines. Peak efficiency moved from 28 lb/min to 22 lb/min flow rate. Available in 0.64 A/R internal wastegate and 0.72 A/R external wastegate configurations.

G30-770: Revised turbine wheel reduces moment of inertia by 12%. New 0.83 A/R housing option bridges the gap between 0.72 and 1.06 A/R ratios. Perfect for 2.5-3.5L applications targeting 450-650hp.

G35-900 (New): This is the game-changer. Flows 90 lb/min at 2.5 pressure ratio, filling the huge gap in Garrett's lineup. Uses the same turbine wheel as the G42 but with a smaller compressor housing. Ideal for 3.5-4.5L builds aiming for 700-800hp.

G42-1200 and G45-1320: Minor updates to wastegate actuator springs and revised oil drain fittings. No major performance changes, which makes sense since these were already dialed in.

Key Performance Improvements

The 2026 updates focus on real-world drivability rather than peak numbers. Garrett's data shows 200-300 RPM improvement in spool time across the G25 and G30 models, which translates to noticeable mid-range torque gains.

Heat management gets better across the board with revised turbine housing cooling passages. This matters for street builds that see consistent boost rather than dyno pulls. The improved cooling also extends turbine wheel life, especially on E85 builds running higher EGTs.

The compressor maps show expanded efficiency ranges, particularly at lower flow rates where most street cars actually operate. This means less heat generation during daily driving and better fuel economy when you're not on boost.

Pricing and Availability

Garrett kept pricing competitive for 2026. Base models start at $1,200 for the G25-660 with internal wastegate, scaling up to $2,800 for the G45-1320 with all the options. The new G35-900 slots in at $2,100, which puts it right where it should be between the G30 and G42.

Availability looks good through most distributors. Trimotive Performance already has allocation secured for the popular configurations, with first deliveries expected in Q3 2026. The G35-900 will have limited initial availability due to new tooling requirements.

Lead times are running 8-12 weeks for standard configurations and 16-20 weeks for custom A/R combinations or special coatings. Plan accordingly if you're building for a specific event or season.

Frequently Asked Questions

What's different about the 2026 Garrett G Series turbos?

The 2026 models feature improved compressor wheel designs for faster spool, better heat management, and the addition of the new G35-900 model. Spool times improved by 200-300 RPM on G25 and G30 models.

When will the 2026 G Series turbos be available?

First deliveries are expected in Q3 2026, with standard configurations having 8-12 week lead times. The new G35-900 will have limited initial availability.

How much do 2026 G Series turbos cost?

Pricing ranges from $1,200 for the G25-660 base model up to $2,800 for the G45-1320. The new G35-900 is priced at $2,100.

Which 2026 G Series turbo is best for my build?

G25-660 works for 1.8-2.5L engines targeting 350-450hp, G30-770 handles 2.5-3.5L builds up to 650hp, and the new G35-900 is perfect for 3.5-4.5L applications aiming for 700-800hp.

Parts & Products

Trimotive Performance carries the complete Garrett G Series lineup and can help spec the right turbo for your build. We stock G25 turbo kits for popular platforms like the Subaru WRX and Mitsubishi Evolution, plus G30 and G35 options for larger displacement builds. Our technical team works with these turbos daily and can provide real-world sizing recommendations based on your specific combination. We also carry all the turbo installation hardware and boost control systems needed to complete your setup.