BagSport rear-mount turbo kit on an A-series engine, turbo side three-quarter view
Turbocharger, downpipe and charge pipe routing on the BagSport A-series kit
Garrett turbocharger with AN4 oil feed line and K&N air filter
Turbocharger mounting and wastegate actuator linkage on the A-series block
3D-printed alloy inlet manifold and charge pipe on the BagSport kit

BagSport Rear-Mounted A-Series Turbo Kit — GBC20-300, Carb, Non-Intercooled (One Only)

Regular price$2,795.00
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Shipping calculated at checkout.

  • Ships Worldwide

One kit only. Brand new, unused, and shipped direct from BagSport Fabrication in the UK.

This is a single BagSport Rear-Mounted A-Series Turbo Kit in the GBC20-300, carb, non-intercooled spec. It was the kit behind our recent raffle. The raffle paid out as a cash prize, so the kit is up for sale, well under what a new one costs to import yourself.

BagSport's 2026 rear-mount package is a true bolt-on: no cutting, no trimming, no welding. The turbo sits on the bulkhead side where the exhaust manifold always lived. If you ever take it back off, the shell is exactly as you found it.

Spec

  • Turbo: Garrett GBC20-300 (journal bearing). It's the mid-range option, with room to grow into a built engine without going soggy down low.
  • Fuel system: Carb (plenum chamber included)
  • Intercooler: Not included. This is the non-intercooled kit.
  • Output: Suitable for a standard engine on low boost, and capable of 200+ hp on a built engine and gearbox

In the box

  • 3D-printed 316 stainless steel manifold and downpipe
  • 3D-printed alloy inlet manifold with integrated wastegate actuator mount
  • Garrett GBC20-300 turbocharger
  • Plenum chamber
  • Charge pipe
  • Forge Motorsport dual-piston blow-off valve
  • K&N air filter with ABS intake pipe
  • AN4 oil feed line and tee piece
  • Oil drain fittings and hose
  • All gaskets, fasteners, silicone couplers and clamps
  • BagSport T-shirt and paint stencil

Shipping and import duty

This kit ships directly from BagSport Fabrication in the UK, anywhere in the world. Shipping to your door is included in the price.

Import duty, taxes (such as VAT or GST) and any carrier brokerage fee are paid by you when the kit is delivered. For US buyers, duty is currently around 10-15% on UK auto parts. Even with that added, it comes in well under the cost of importing a new kit yourself.

Because it ships from the UK, this kit is final sale unless it arrives damaged or isn't as described.

Photos show BagSport's demonstration build, which is the intercooled version. The kit for sale is the non-intercooled carb kit described above.

Compliance

Sold for off-road, competition and export use only. This product is not certified for use on pollution-controlled motor vehicles operated on public roads in the United States, and is not CARB EO exempt. It is the purchaser's responsibility to confirm the legality of installation and use in their jurisdiction.

How long will it take to get my order?

Depending on the product orders are fullfilled as follows:

- RTS Clutches - RTS clutches are made to order and can take between 3-4 weeks to assemble and machine depending on current demand.
- Fuel Injection Products - EFI Orders are made to order and ship within 1-2 weeks based on current demand.
- HEL Performance Products - HEL Orders are made to order and ship within 1-2 weeks based on current demand.
- Shift Knobs 
- Shift knobs are made to order and ship within 1-2 weeks based on current demand.
- Retro Components UK Products - Orders ship within 2-3 business days
- Apparel and Accessories - Depending on location, orders ship within 2-4 business days
- Stickers- Ship between 24-48 hours

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Classic Mini DIY started as a Youtube channel and now has grown into a store offering OEM+ level products for the Classic Mini community. Our focus is always enhancing and improving the quality of your driving experience.

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Testimonials

★★★★★

The HEL lines installed quickly and easily. They look great in the engine bay and routing was simple as well.

Joe M.
USA
★★★★★

Brilliant use of the ash tray location

Only problem I need to buy another one for the moke 👍

Bob H.
USA
★★★★★

I bought mine in black heather a year or two ago and it has lasted well, great quality and a nice subtle design.

Matt C.
United Kingdom

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