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GT45 1.05 AR Turbokit + 600x300x76 Intercooler + Oil Feed Return Line Kit

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  • Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 03 Feb, 2026, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
  • Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
  • Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
  • Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.
1. What comes in the GT45 1.05 AR Turbokit package?

The kit includes the GT45 turbocharger (floating bearing), a 600 x 300 x 76 mm intercooler (tube & fin) with 3" (76 mm) in/out, and an oil feed & return line kit (oil feed: 1000 mm x 14 mm ID; oil return: 550 mm x 21 mm ID).

2. What engines is this kit intended for?

Designed for 3.0L to 6.0L engines. Fitment depends on engine bay space, exhaust routing and flange compatibility—verify measurements and clearances for your vehicle.

3. What are the turbo compressor and turbine specifications?

Compressor: Trim 50, inducer diameter 69 mm, exducer 98 mm, A/R 0.66. Turbine: Trim 78, inducer diameter 88 mm, exducer 77.5 mm, A/R 1.05.

4. How much power can I expect from this kit?

The turbo is rated to support boost power up to 600+ bhp when paired with proper supporting modifications, fueling and tuning.

5. What are the intercooler dimensions and features?

Core size: 600 x 300 x 76 mm (24 x 12 x 3"). Overall size: 780 x 330 x 76 mm (31 x 13 x 3"). Inlet/outlet: 3" (76 mm). Core design: tube & fin.

6. What oil feed and return lines are included?

Oil feed line: 1000 mm length with 14 mm inner diameter. Oil return line: 550 mm length with 21 mm inner diameter. Lines are provided to connect turbo oil supply and drain—proper routing and slope to the sump are required.

7. What exhaust and downpipe flanges does the turbo use?

Exhaust (turbo manifold) flange: T4 4-bolt flange. Exhaust (downpipe) flange: 3.5" V-band flange.

8. Does the turbo come with a wastegate?

The kit requires an external wastegate (not integrated). You must provide or install a properly sized external wastegate and dump/actuator plumbing.

9. What bearing type does the turbo use?

The turbo uses a floating bearing design.

10. Is ECU tuning required after installation?

Yes. Any turbo upgrade, especially one capable of 600+ bhp, requires a professional ECU tune to adjust fueling, ignition timing and boost control to ensure reliability and performance.

11. What supporting modifications are recommended for reliability at high power?

Recommended upgrades include higher-flow fuel injectors and fuel pump, upgraded exhaust, intercooler piping and couplers, boost controller or electronic wastegate controller, stronger clutch/transmission components, and engine internals based on target power.

12. How is installation handled and do I need a professional?

Professional installation is strongly recommended. Proper manifold fitment, oil feed tapping, gravity oil return routing, plumbing, downpipe, intake piping, and a custom tune are typically required.

13. What are the expected spool and drivability characteristics?

With the GT45 hardware and A/R values shown, expect moderate spool—slower than small-frame turbos but optimized for high-flow at mid to high RPM for large displacement (3.0–6.0L) engines. Exact spool will vary with engine displacement, cam timing and tune.

14. Are there any known dimensional notes or possible typos in the spec sheet?

The spec sheet lists turbo height and width as 243 cm and 273 cm, which is likely a unit typo. Confirm actual physical dimensions with the seller before purchase to ensure fitment.

15. What maintenance is required for this turbo kit?

Regular oil changes with high-quality oil and filter, inspect oil feed/return lines and clamps for leaks, check intercooler piping and couplers, verify wastegate operation and boost leaks, and follow break-in/run-in procedures (prime turbo oil before first start).

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