Agp Turbochargers

Updated May 12, 2026

For the broader IHI OEM brand context that AGP rebuilds Subaru VF-series turbos from, see the Read the IHI brand-tier guide — covers IHI Corporation Subaru WRX/STI VF-series OEM supply across multiple generations.

AGP Brand Overview

AGP Turbochargers is a specialty-tier turbocharger rebuilder concentrated on Subaru WRX / STI and selected Mitsubishi Evo applications. The brand operates primarily through e-commerce distribution channels — eBay, Amazon, and Subaru / Mitsubishi tuner-aftermarket networks — rather than authorized-dealer specialty distribution like Garrett, BorgWarner, or Cobb Tuning.

The brand sits structurally between OEM IHI direct sourcing (highest price, factory warranty depth) and budget Chinese aftermarket cross-references (lowest price, shortest service life) in the Subaru turbo market. AGP-rebuilt VF-series turbos compete on price-per-performance against Cobb / Crawford / IAG specialty-tier rebuilds at slightly lower pricing with comparable Stage 1-2 performance targeting. The cross-shop is close on engineering criteria for the Subaru VF-series catalog; distributor presence and shop-trust relationships often determine the buyer\'s pick.

"AGP is the price-conscious Subaru WRX rebuilt-VF option that splits the difference between OEM IHI direct ($1,500+) and the cheapest eBay no-name rebuilds at $400-$600. Service life isn\'t Cobb / Crawford long, but for daily-driver WRX builds at Stage 1-2 the math works on depreciation-adjusted spend." — r/WRX / r/subaru synthesis on the AGP cross-shop position in the Subaru-tuner rebuilt-turbo market.

AGP Catalog Focus — Subaru VF and Mitsubishi RHF5

The AGP catalog concentrates narrowly on two OEM frame families: Subaru WRX / STI IHI VF-series and Mitsubishi Evo VIII / IX RHF5HB. Beyond these two chassis, AGP does not ship a broad cross-engine catalog like Garrett or BorgWarner.

Subaru WRX / STI IHI VF-series rebuilds cover multiple generations (VF34 / VF37 USDM WRX, VF39 / VF43 USDM STI, VF44 / VF48 current generation). Mitsubishi Evo VIII / IX RHF5HB rebuilds cover the factory IHI-source Evo platforms.

Pricing by frame. AGP VF34 / VF37 USDM WRX rebuild ($800-$1,200). AGP VF39 / VF43 USDM STI rebuild ($1,000-$1,500). AGP VF44 / VF48 current generation rebuild ($1,200-$1,800). AGP Mitsubishi Evo VIII / IX RHF5HB rebuild ($900-$1,400). Build process: rebuilt OEM cores with new balance-grade rotating assemblies, upgraded bearings where applicable, documented serial number, 1-year limited warranty. The brand does not ship new-construction turbos — every AGP product is a rebuilt OEM core sourced from used / failed factory units.

AGP vs Cobb vs IHI Direct — The Subaru Cross-Shop

Three brands dominate the Subaru WRX / STI rebuilt-turbo cross-shop: IHI direct ($1,200-$2,000), Cobb Tuning rebuilds ($1,500-$2,500), and AGP ($800-$1,800). Each tier maps to a different decision criterion.

IHI direct OEM-rebuilt wins on documented factory warranty terms and matching cohort service life. Cobb Tuning rebuilds win on broader Stage build support including AccessPort tuning and full kit ecosystem. AGP competes on price-per-performance for buyers staying close to OEM-spec Stage 1-2 targets.

Decision criteria mapping. Buyer wants full Stage build with documented dyno-proven kit support → Cobb Tuning is the documented community default. Buyer wants OEM-spec factory-warranty rebuild → IHI direct service through Subaru dealer. Buyer wants the cheapest rebuilt VF with reasonable engineering depth → AGP wins on the cost-per-performance criterion. Buyer wants 400+ horsepower performance targeting beyond OEM frame envelope → all three brands fall short; the aftermarket community migrates to Garrett GTX2867R or Precision PT5862-class frames on custom plumbing.

The cross-shop decision often lands on what kind of build the buyer is running. Pure stock-replacement at minimum cost favors AGP heavily. Documented Stage build with tuning consult favors Cobb. Factory-warranty cohort coverage favors IHI direct. The three brands serve different sub-segments of the Subaru-tuner buying community; the "best" framing is application-specific rather than blanket.

The Subaru-tuner community split between OEM-IHI direct, Cobb Tuning, and AGP reflects the broader pattern in specialty-niche turbo markets: deep platform expertise concentrated in small brands serving focused communities, with the choice between them landing on the buyer\'s specific build context rather than head-to-head engineering criteria.

AGP in the Broader Aftermarket Replacement Context

AGP\'s position reflects the structural pattern of specialty-niche rebuilders. The brand serves a narrow but loyal Subaru-tuner community valuing lower pricing over the documented Stage build ecosystem from Cobb / Crawford / IAG.

For the buyer staying close to OEM spec and wanting documented rebuild quality at lower price than direct IHI service, AGP is the documented community default. The brand\'s narrow catalog focus is both strength and limitation. The strength: deep Subaru VF-series rebuild expertise concentrated in a specific cohort of OEM cores. The limitation: zero coverage outside the Subaru and selected Mitsubishi chassis. Buyers with Honda K20 / B-series, Mitsubishi 4G63 (outside Evo VIII/IX), Nissan SR20 / RB, GM LS, Ford Coyote, Hemi, Cummins, or Power Stroke applications have no AGP cross-reference; the relevant aftermarket brand families (Garrett, Precision, BorgWarner, plus the specialty-tier diesel rebuilders) cover those chassis universes instead.

For the IHI OEM brand context that AGP rebuilds, the Read the IHI brand-tier guide covers IHI Corporation Subaru WRX/STI VF-series OEM supply. For the broader performance-tier brand cross-shop, the Read the high-performance turbocharger guide covers Garrett, Precision, and BorgWarner. For the small-frame applications that include the Subaru VF-series category, the Read the small turbochargers guide covers the compact-frame catalog. For the universal-flange aftermarket alternative when migrating beyond AGP scope, the Read the Maxpeedingrods T3/T4 review covers the entry-tier custom-fab format. For the broader cross-engine roundup, the Read the cross-engine roundup covers documented OE-replacement picks.

For deeper engineering background, the Turbocharger reference covers compressor-and-turbine fundamentals applicable to every rebuild tier. The Turbo University reference publishes industrial-tier balance-and-test discipline that specialty-tier rebuilders track to. The Understanding Turbochargers Guide covers the rebuilder-tier protocol shops apply to OEM-core rebuild work. The Turbocharger Rebuilding Distribution catalog publishes OE manifest cross-references including Subaru VF-series and Mitsubishi RHF5HB applications.

AGP Decision Questions

Who makes AGP turbochargers?

AGP Turbochargers is a specialty-tier turbocharger rebuilder focused on Subaru WRX / STI and selected Mitsubishi Evo applications. The brand operates primarily through eBay, Amazon, and the Subaru / Mitsubishi tuner-aftermarket distribution channels. AGP is structurally a smaller player in the aftermarket performance turbo market compared to Garrett, Precision, or BorgWarner, but the brand carries documented community recognition in the Subaru-tuner segment specifically.

Are AGP turbos good?

For Subaru WRX / STI applications staying close to OEM-spec Stage 1-2 performance targets (290-380 horsepower), AGP rebuilt OEM IHI VF-series turbos compete at lower price than IHI direct or Cobb / Crawford / IAG specialty-tier rebuilds. The brand sits at the upper end of the budget-aftermarket tier with slightly tighter build quality than generic Chinese cross-references. For 400+ horsepower Subaru builds, the aftermarket community typically migrates to Garrett GTX2867R or Precision PT5862-class frames on custom plumbing — outside AGP's catalog focus.

How much do AGP turbos cost?

AGP-rebuilt Subaru WRX / STI IHI VF-series turbos run $800-$1,500 depending on Stage and frame size. Specific frames: AGP VF34 / VF37 USDM WRX rebuild ($800-$1,200), AGP VF39 / VF43 USDM STI rebuild ($1,000-$1,500), AGP VF44 / VF48 current generation rebuild ($1,200-$1,800). Cross-shop competitors at similar pricing: IHI direct OEM-rebuilt ($1,200-$2,000), Cobb / Crawford specialty rebuilds ($1,500-$2,500). The cross-shop is genuinely close on engineering criteria.

AGP vs Cobb Tuning — which is better?

Cobb Tuning runs a broader Subaru-tuner product portfolio (turbos, exhausts, intakes, tuning consults, AccessPort modules) with documented dyno-proven Stage upgrade kits. AGP focuses narrowly on rebuilt OEM IHI VF-series turbos at slightly lower pricing. For full Stage build with tuning support, Cobb is the documented community default. For pure OEM-spec rebuild work on a specific VF frame, AGP competes well on price-per-performance. The decision usually lands on whether the buyer needs full Stage build support or just a rebuilt turbo.

Do AGP turbochargers fit non-Subaru cars?

AGP catalog focuses primarily on Subaru WRX / STI IHI VF-series frames, with selected Mitsubishi Evo VIII / IX coverage (RHF5HB rebuilds). Cross-application fitment beyond these chassis is unusual — AGP does not ship a broad cross-engine catalog comparable to Garrett, Precision, or BorgWarner. For non-Subaru / non-Mitsubishi applications, AGP is the wrong cross-shop; the relevant aftermarket brand families (Garrett GT/GTX/G-series, Precision PT-series, BorgWarner EFR) cover the broader chassis universe.

How long do AGP turbos last?

Rebuilt AGP VF-series turbos on documented daily-driver Subaru WRX / STI applications running stock-spec boost (15-18 psi) typically reach 60,000-120,000 miles before requiring rebuild or replacement. Aggressive Stage 2-3 applications running 22-25 psi see 40,000-80,000 mile service life. The 50% shorter service life versus premium Garrett or BorgWarner rebuilds reflects the budget-aftermarket build discipline; the price gap maps to roughly the same ratio.

Where do AGP turbos ship from?

AGP distributes primarily through eBay, Amazon, and direct-to-consumer e-commerce in the US market. The brand does not run an authorized-dealer specialty network like Garrett or BorgWarner. Most listings ship from US-based warehousing with documented serial numbers and 1-year limited warranty. Forum-reported claim-process documentation overhead is heavier than Garrett or IHI direct warranty processes, similar to other budget-aftermarket brand experiences.