aFe 51-82722 The Stage 2 Si retains the original VSV and uses one oil-free synthetic filter inside an XLPE housing with an aluminum cover. Its intake tube is mandrel-bent aluminum, rather than the molded tube used by the V6 kit.
Toyota Tacoma 2005-2023 with the L4-2.7L gasoline engine. Both the exact current manufacturer page and its linked manual cover 2005-2023. Exact-part retailer tables support Base/Pre Runner 2005-2015 and SR/SR5 2016-2023; broader retailer headlines alone do not establish other engines or trims.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 2005-2015 | Toyota | Tacoma | Base |
| 2005-2015 | Toyota | Tacoma | Pre Runner |
| 2016-2023 | Toyota | Tacoma | SR |
| 2016-2023 | Toyota | Tacoma | SR5 |
Verify 51-82722 against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 51-82722 |
| Application | Tacoma 2005-2023, L4-2.7L gasoline |
| Filter | One 21-91021 / three-layer oil-free synthetic / current 6-inch height |
| Tube | 05-82722B1 / mandrel-bent wrinkle-black aluminum |
| Housing / cover | 05-00823 XLPE / 05C00823B aluminum |
| Clamps / vacuum | Three #048 and one #064 / 9-inch supplied small vacuum hose |
| Retained equipment | Original VSV, MAF, breather hose, two housing grommets/sleeves and mounting bolts |
| Bench-flow qualification | The current manufacturer advertises 175 CFM at 1.5 inches H2O and 56% more airflow. No flow chart is linked on this exact page, so the stock comparison and selected-media bench conditions cannot be independently read from a linked test here. |
| Dyno qualification | The actual linked chart identifies a 2014 Tacoma 2.7L. At 4,710 rpm its displayed power values differ by 131.81 minus 126.26 = 5.55 hp and torque by 146.97 minus 140.78 = 6.19 lb-ft. Printed run maxima differ by 131.84 minus 128.98 = 2.86 hp and 153.83 minus 147.39 = 6.44 lb-ft, not the same comparison as the marked point. Baseline notes say SECOND gear, intake notes THIRD gear; both list stock throttle body/headers/exhaust and an aFe tip. SAE factors are 1.01 and 1.02 with different ambient conditions. Those gear and correction differences qualify the advertised 5 hp/6 lb-ft result; this is not a controlled same-gear guarantee. |
| Torque / recheck | No numeric torque or mileage interval in exact manual |
| Emissions | The exact current manufacturer page states that this product is not currently CARB exempt and is unavailable for purchase in California or use on any vehicle registered with the California DMV. Older race-use wording in a shared manual does not override that current restriction. |
| UPC | 802959513880 |
| WARNING | This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 21-91021 | Selected oil-free synthetic Pro DRY S filter |
| 1 | 05-00823 | XLPE sealed housing |
| 1 | 05-00611 | Filter adapter |
| 9 | 03-50113 | M6 x 1 x 10 button-head screws TOTAL |
| 1 | 05-00122 | 9-inch vacuum hose |
| 1 | 05-82722B1 | Wrinkle-black mandrel-bent aluminum tube |
| 1 | 05-00418 | 2.75 x 3-inch coupling |
| 1 | 05-00649 | 4 x 2.75 x 3.5-inch coupling; dimensions as printed |
| 1 | 03-50006 | #064 clamp |
| 3 | 03-50007 | #048 clamps |
| 2 | 03-50030 | M4 x .7 x 16 MAF screws |
| 1 | 03-50063 | Isolation mount |
| 1 | 03-50065 | Flat washer |
| 1 | 03-50087 | M8 nut |
| 1 | 03-50191 | Brass nipple |
| 1 | 05C00823B | Black aluminum cover |
| 1 | 05-00744 | VSV relocation L-bracket |
| 1 | 05-00937B | Auxiliary airbox plug |
One 21-91021 three-layer oil-free synthetic filter is supplied, not the alternate cotton filter. The kit includes an XLPE sealed housing, aluminum cover and mandrel-bent wrinkle-black ALUMINUM tube. Its L-bracket retains the original vacuum switching valve (VSV) on the valve cover. Original lower-airbox grommets, sleeves and two mounting bolts transfer. The manual mentions supplied nuts for VSV mounting but lists only one loose M8 nut; confirm the boxed/reused VSV fasteners rather than inventing extra hardware. Nine M6 button-head screws are the TOTAL for adapter and cover. The auxiliary-inlet plug is listed; use the specified inlet configuration without assuming a supplied separate scoop or adding cuts.
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Toyota Tacoma 2005-2023 with the L4-2.7L gasoline engine. Both the exact current manufacturer page and its linked manual cover 2005-2023. Exact-part retailer tables support Base/Pre Runner 2005-2015 and SR/SR5 2016-2023; broader retailer headlines alone do not establish other engines or trims.
Is the filter oil-free and what is the tube material?One 21-91021 three-layer synthetic Pro DRY S filter requires no oil. The tube is mandrel-bent aluminum; the housing is XLPE and cover aluminum.
What happens to the original VSV?One 21-91021 three-layer oil-free synthetic filter is supplied, not the alternate cotton filter. The kit includes an XLPE sealed housing, aluminum cover and mandrel-bent wrinkle-black ALUMINUM tube. Its L-bracket retains the original vacuum switching valve (VSV) on the valve cover. Original lower-airbox grommets, sleeves and two mounting bolts transfer. The manual mentions supplied nuts for VSV mounting but lists only one loose M8 nut; confirm the boxed/reused VSV fasteners rather than inventing extra hardware. Nine M6 button-head screws are the TOTAL for adapter and cover. The auxiliary-inlet plug is listed; use the specified inlet configuration without assuming a supplied separate scoop or adding cuts.
Which factory housing parts transfer?Two original rubber grommets with metal sleeves and two original mounting bolts. Install the supplied isolation mount at the illustrated location hand-tight firmly.
Which hoses and sensor are retained?Transfer the original MAF using the supplied screws, retain the original breather hose and replace the small fuel-regulator vacuum hose with the supplied 9-inch hose.
What does the airflow claim establish?The current manufacturer advertises 175 CFM at 1.5 inches H2O and 56% more airflow. No flow chart is linked on this exact page, so the stock comparison and selected-media bench conditions cannot be independently read from a linked test here.
Are the dyno runs in the same gear?The actual linked chart identifies a 2014 Tacoma 2.7L. At 4,710 rpm its displayed power values differ by 131.81 minus 126.26 = 5.55 hp and torque by 146.97 minus 140.78 = 6.19 lb-ft. Printed run maxima differ by 131.84 minus 128.98 = 2.86 hp and 153.83 minus 147.39 = 6.44 lb-ft, not the same comparison as the marked point. Baseline notes say SECOND gear, intake notes THIRD gear; both list stock throttle body/headers/exhaust and an aFe tip. SAE factors are 1.01 and 1.02 with different ambient conditions. Those gear and correction differences qualify the advertised 5 hp/6 lb-ft result; this is not a controlled same-gear guarantee.
What installation and emissions limits apply?The exact current manufacturer page states that this product is not currently CARB exempt and is unavailable for purchase in California or use on any vehicle registered with the California DMV. Older race-use wording in a shared manual does not override that current restriction. No numeric torque or mileage recheck interval is specified.
Verify aFe 51-82722. With a cool engine and negative battery disconnected, remove the resonator mounting bolts and original intake hose, then transfer the original MAF. Disconnect the breather and fuel-regulator vacuum hoses, detach the original VSV from the resonator and retain its original bolts. Remove the lower airbox, retaining two mounting bolts and TWO original rubber grommets with sleeves. Install the MAF with the supplied screws and the brass vacuum fitting on the new tube. Mount the L-bracket on the valve cover with an original resonator bolt and secure the ORIGINAL VSV as Figure E shows; verify the exact reused/boxed fasteners because the loose-nut listing does not fully resolve that step. Transfer the two grommets/sleeves to the new housing. Install the M8 isolation mount at the illustrated inner-fender location HAND-TIGHT FIRMLY; clear paint/undercoating from threads if needed. Attach the filter adapter, then secure the housing with the two original bolts plus the new isolation mount washer/nut. Fit both couplings/clamps loosely for alignment. Reconnect the ORIGINAL breather hose and use the supplied 9-inch small vacuum hose between tube and fuel regulator. Install the selected filter and aluminum cover, reconnect the MAF and battery, align the tube and secure all connections. No numeric torque or mileage recheck interval is specified by this exact manual.
Toyota Tacoma 2005-2023 with the L4-2.7L gasoline engine. Both the exact current manufacturer page and its linked manual cover 2005-2023. Exact-part retailer tables support Base/Pre Runner 2005-2015 and SR/SR5 2016-2023; broader retailer headlines alone do not establish other engines or trims. The exact current manufacturer page states that this product is not currently CARB exempt and is unavailable for purchase in California or use on any vehicle registered with the California DMV. Older race-use wording in a shared manual does not override that current restriction. The actual linked chart identifies a 2014 Tacoma 2.7L. At 4,710 rpm its displayed power values differ by 131.81 minus 126.26 = 5.55 hp and torque by 146.97 minus 140.78 = 6.19 lb-ft. Printed run maxima differ by 131.84 minus 128.98 = 2.86 hp and 153.83 minus 147.39 = 6.44 lb-ft, not the same comparison as the marked point. Baseline notes say SECOND gear, intake notes THIRD gear; both list stock throttle body/headers/exhaust and an aFe tip. SAE factors are 1.01 and 1.02 with different ambient conditions. Those gear and correction differences qualify the advertised 5 hp/6 lb-ft result; this is not a controlled same-gear guarantee.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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