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Dinan Big Turbo for the BMW N20 Engine
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Dinan Big Turbo for the BMW N20 Engine


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For the racing enthusiast, this is the ultimate upgrade to fully maximize the power output of your N20 engine. The compressor wheel inside the turbocharger is increased in size enabling additional boost pressures and thus increased horsepower at higher engine speeds all the while retaining efficiency.

DOWNLOAD INSTALLATION INSTRUCTION HERE

Hardware supplied in the base turbo kit is only complete when installing on a RWD vehicle. If vehicle is an xDrive vehicle then additional hardware is required to complete installation. We offer Dinan P/N D313-0127 for those cases.

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  • $1,311.99
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  • Shipping info

    We deliver worldwide: UPS, USPS, DHL - or pickup your order in Westlake, Ohio

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  • Return Policy

    We accept returns; please see the Returns and Refunds Page for more info.

  • Weight
    25 lbs
  • SKU
    D310-0120

Special Note: Installation times vary depending on application:
F22 228i xDrive, F30 328i xDrive, F32 428i xDrive - 7.0 hrs
F31/F34 328i xDrive, F36 428i xDrive - 7.4 hrs
F23 228i xDrive - 8.1 hrs 

For the racing enthusiast or those just looking for the best, this is the ultimate upgrade to fully maximize the power output of your N20 engine. The compressor wheel inside the turbocharger is increased in size allowing ~30% greater flow thus enabling additional boost pressures at higher engine speeds while retaining efficiency. These aren't standard rebuilds but rather brand new units with a new stock turbine custom cast and manufactured with an upgraded thrust system to ensure reliable and prolonged life. In order to attain maximum advertised power gains these big turbos will need to be paired with DINANTRONICS Stage 4, as well as Dinan’s intercooler to fully regulate the boost increase and deliver a polished product although the exhaust is also recommended. 

Benefits of the Dinan Big Turbo for the N20 Engine:

+ No core charge or core return is required.
+ Brand new upgraded turbo that is custom cast and manufactured with an upgraded thrust system.
+ Larger billet compressor/impeller wheel that allows ~30% greater flow over stock which then enables additional boost to be realized while retaining efficiency.
+ Brand new stock turbine.
+ Turbo assembly is compatible with both mechanical/vacuum and electric wastegate vehicles.
+ Peak power: 345 HP @ 5500 RPM and 336 ft-lbs @ 4000 RPM and a max gain of 84 HP @ 6500 RPM and 77 ft-lbs @ 5500 RPM when coupled with other Dinan Performance upgrades.
+ Dinan Installation instructions detail a procedure which is quicker than BMW's turbo replacement procedure saving the end-user money and time at the shop (Applicable to RWD vehicles only).
+ Includes o-rings and gaskets needed for complete installation on a RWD vehicle only. If installing on an xDrive vehicle Dinan P/N D313-0117 is required for additional installation hardware.
+ Factory matching new car warranty (4yr/50k) when run in Dinan specification.
+ 50 State Emissions legal; CARB EO # D-176-49.

Fitment

Make Model Year Engine
  • Manufacturer
    Dinan
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Most parts are available for local pick-up with no shipping or handling charge. Please select the in-store pickup option during checkout. Once we receive your order you will be contacted to schedule your pick-up.

Once your order has been shipped, and if the method of shipping has been assigned a tracking number you will be notified of the number. Please note that carriers such as UPS may not update the tracking number status until late in the evening when the daily pickups have been recorded.

In the event your order arrives and an item is damaged, notify HS Tuning within 5 business days after receiving shipment. Make sure to not discard the box(s), packing materials or broken/damaged product(s). If this occasion arises, we require that you obtain a damage claim number from UPS by calling 1-800-742-5877. During the call you will need to supply them with the information from your shipping label. After obtaining a claim number, contact HS Tuning. If a part is missing from your order, you must contact HS Tuning by either by phone at 216-577-7171 or email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it within 5 business days of receiving your shipment. After 5 business days have passed, HS Tuning will no longer be held responsible.

We accept the following payment methods:


Returns, Refunds, Warranty

Returns will not be accepted after 30 days of purchase, and a 15% restocking fee applies to all orders that are not a result of an error made by HS Tuning. Returns will be refused if the part is not:
- In the original packaging and undamaged.
- Product has not been installed.
- Complete with all parts, manuals and print material.

Please note the following parts are not returnable:
- Electrical components
- ECU Software
- Repairs Manuals
- Tools
- Wheels and Tires
- Hand fabricated and custom parts
- All parts identified as special order

Before any item is returned, HS Tuning requires an RMA (Return Merchandise Authorization) number for all returns. RMA numbers can be issued by phone at 216-577-7171 or email This e-mail address is being protected from spambots. You need JavaScript enabled to view it

HS Tuning
Attn: Returns Department
30205 Clemens Road Unit A
Westlake, OH 44145

Your RMA number must be visible on the outside of the packaging in order for your return to be processed properly.

Product Warranty:

HS Tuning offers only quality products to its customers. If your part fails due to defects in workmanship or materials within the first year of ownership, contact HS Tuning and provide us with a copy of your original invoice as proof of purchase. HS Tuning will not refund money, but will work with you to replace or warranty parts. Either HS Tuning or the product manufacturer will test or inspect the product before a warranty claim adjustment is finalized. Any product that fails due to misuse, neglect, unintended application or improper installation will not be covered under any warranty. HS Tuning is not liable for consequential and incidental damages and/or costs incurred of any kind, including those caused by products sold by HS Tuning.

In addition to the parts listed above that are non-returnable, HS Tuning cannot offer any full warranty coverage on wearable mechanical items and electrical components.