SET YOUR CAR
TALK TO A PARTS EXPERT
- Exhausts
- Cat Back Exhaust System
- Downpipes And Y-pipes
- Exhaust Headers And Manifolds
- Exhaust Gaskets And Hardware
- Axle Back Exhausts
- Shop All
- Engine Management
- Plug And Play Engine Management
- Staged Power Packages
- Engine Management Sensors
- Stand Alone Engine Management
- Engine Management Harnesses
- Shop All
- Air Induction
- Short Ram Air Intakes
- Turbo Inlet Hoses And Pipes
- Cold Air Intakes
- Air Intake And Maf Hoses
- High Flow Replacement Panel Filters
- Shop All
Product images
Product Media
Community Media
Tomei ARMS M8265 Turbo
Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Features & Product Details
This turbo has the potential to deliver 450PS with the stock layout; from 4000RPM upwards is where peak power comes in. This Turbo's special characteristics will really show when added engine tuning and internal upgrades are done.
Includes: Turbo, Water Lines, Oil Return Lines. Gaskets, and Bolts.
Compressor Wheel: 52 Trim, 54.8mm Inlet Diameter, 76.2mm Exit Diameter
Turbine Wheel: 77.1 Trim, 67.0mm Inlet Diameter, 58.8mm Exit Diameter.
A silicone inlet hose is needed when using this turbo as the inlet is slightly larger than stock.
Includes: Turbo, Water Lines, Oil Return Lines. Gaskets, and Bolts.
Compressor Wheel: 52 Trim, 54.8mm Inlet Diameter, 76.2mm Exit Diameter
Turbine Wheel: 77.1 Trim, 67.0mm Inlet Diameter, 58.8mm Exit Diameter.
A silicone inlet hose is needed when using this turbo as the inlet is slightly larger than stock.
Specifications
Brand:
Tomei
Bearing Type:
Journal Bearing
Cartridge:
Tomei
Fitment:
OEM Upgrade
Gaskets Included:
Yes
Inlet Size:
Non OEM
Oil Line Included:
No
Ported Turbine Housing:
No
Rated Horsepower:
450hp
Scroll:
Single
Wastegate:
Internal
Mfgr. Warranty:
1 Year
Condition:
New Product
Return Policy:
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Standard
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED
REVIEWS & CUSTOMER MEDIA
Customer Photos and Videos
striker775
Installed a '07 STI. This turbo is definitely pretty to look at. This turbo might not be as big as some of the others on the market, but for the price per performance. It's pretty good. I'm happy with this turbo and I’ve been running it for 4 months now. Here are the numbers from this turbo: HP=338 and TQ=325. I've upgraded everything externally and the internals are still stock. I live at a elevation of 4400 ft and with 91 octane. My tune was a little conservative and down the road I will rebuild the motor to get more out of the turbo.
IG: @dustyboi808
So after having this turbo installed for about 2years, I haven’t gotten the chance to boost the car because I was untuned the whole time. I finally got tuned and here is what I got. On the dyno we discovered that my EBCS (turbosmart e-boost street) was seized after not boosting for couple years. We could only push it at max boost 16psi results: 355whp 338tq. Now as stated in the title, I picked up a Hallman manual and installed that the same night, went out on the street with my tuner and pushed it up to 21psi, we didn’t get a direct number on the street but DrunkMan laughed and guaranteed it is now over 400whp for sure. I noticed that RallySportDirect *HPrating* is at the crank (450hp) so roughly 350-360whp. But with supporting mods: 850cc injectors, deatchwerks 300 320lph fuel pump, agency power EL headers, Invidia turbo back, Perrin cold air Big Maf intake, Perrin 3” silicone inlet, cosworth head studs, 100mm Pistons, eagle rods, ACL race rod/main bearings, Spearco TMIC, exedy pressure plate, ACT 6puck disc, and as well as methanol this turbo can surpass 400whp. Over all this turbo is still a bit “punchy” as it is not a really big turbo it does not have a completely horrible boost lag. Full boost comes on at about 3700-3800 not at 4K light it is stated on the Tomei website. I’m sure others with bigger supporting mods and maybe higher boost are pushing it waaay pass 400whp
1 of 1 people found the following review helpful
SW 808
Beautiful turbo and quick and easy install. I have this on my EJ207 V7 w/ the Tomei headers, Up-pipe and cat back exhaust along with DW 1000cc injectors and the ETS FMIC. Without hesitation the car put down 425hp/385tq on 25lbs consistently and we took it much much higher. Keep in mind the power band is higher more of a higher mid/top end range. Being i have the FMIC i do get a tad bit of lag pending driving condition, however when this turbo starts to spool you will know and for sure hear it. Definitely would recommend but as always, check with your tuner first! Haha
2 of 2 people found the following review helpful
tanvir dhaliwal
Fits better then the stock turbo! Installing was very easy, everything fits so perfectly and sounds like a beast! Made very good numbers and highly recommend.
2 of 2 people found the following review helpful
ryanlholbrook76760
Got this when my vf22 seized up. This is one good looking turbo for sure. Very happy with my results. I uploaded a dyno chart from my auto 04 fxt. 316whp 286wtq @ 18psi
QUESTIONS & ANSWERS
-
Q: hotside /internal wastegate pappasmurfsti19 days ago
Filling out drunkmann tuning sheet. the sheet asks what the hotside is and what the internal wastegate spring in PSI is. can you help me out? i have the m8265 in a 2004 sti that the previous owner built.
-
-
0 of 0 people found the following answer helpful
A: Compressor Wheel: 52 Trim, 54.8mm Inlet Diameter, 76.2mm Exit Diameter Turbine Wheel: 77.1 Trim, 67.0mm Inlet Diameter, 58.8mm Exit Diameter. Unfortunately, with this item being discontinued, we would not have a direct answer for you.
Devan M. @ RallySport Direct 11 days agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: Turbo inlet 2013sti2 months ago
-
-
0 of 0 people found the following answer helpful
A: This turbo has been discontinued.
Devan M. @ RallySport Direct 2 months agoWas this answer helpful? -
0 of 0 people found the following answer helpful
A: I have the mx8265
2013sti @Was this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: TGV deletes T-Bone4 months ago
-
-
0 of 0 people found the following answer helpful
A: You should be able to install this turbo with the required inlet while retaining the stock TGVs.
Marcus E. @ RallySport Direct 4 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: Inlet size Mike04sti5 months ago
-
-
0 of 0 people found the following answer helpful
A: This will work with the Tomei inlet. Their inlet comes with several adapters to fit their ARMS series, as well as OEM inlet sized turbos.
Marcus E. @ RallySport Direct 3 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: 05 wrx Richard5 months ago
-
-
0 of 0 people found the following answer helpful
A: This would be better suited towards the 2.5L models, it could be a bit laggy on the 2.0L. It also might be a bit on the high side for stock internals. For your application, a 16G-18G, or possibly a Tomei 7760 would work best.
Marcus E. @ RallySport Direct 3 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
