BMW M340i xDrive pumped to M3-beating 503bhp by G-Power

To tide us over until the G20 M3 arrives, German-based G-Power has lifted output of the M340i xDrive

Despite its current range-topping status, the G20 M340i xDrive failed to impress when we got behind the wheel. One thing it most certainly does have, however, is straight-line performance, but as is the way of the tuning world, G-Power felt it wasn’t enough.

Three levels of power are on offer, starting with the GP-420 kit and moving up to the GP-510. The baseline tune will cost you €1695 (approx. £1500), and is good for an F80 M3-rivalling 414bhp and 443lb ft of torque – the 0-62mph sprint drops four-tenths over factory to only 4.0sec, with top speed coming in at 186mph should you opt for the limiter removal.

Subscribe to evo magazine

Subscribe today to have every issue of evo delivered straight to you. You'll SAVE 39% on the shop price, and get evo for its original cover price for a whole year!

> 730bhp Abt Audi RS7-R makes the school run more fun

GP-470 requires a little more than an ECU tune, with a new stainless steel downpipe and less restrictive 200-cell catalytic converter allowing for reduced backpressure. The result is 464bhp and 479lb ft of torque, helping the 3-series sprint from standstill to 62mph in 3.8sec – cost for this upgrade starts from €4245 (approx. £3800).

Pushing the B58 straight-six to the max is G-Power’s GP-510 kit, adding a new turbocharger with enlarged compressor and turbine wheels and larger CNC-milled housings for higher peak boost. Combined with its sports downpipe, 200-cell catalytic converter and an ECU tune, output comes to a G20 M3-matching 503bhp and 509lb ft of torque, providing a 3.7sec 0-62mph time. It will set you back €5840 (approx. £5200), which doesn’t seem unreasonable when you consider the performance gains.

All three stages offer improved throttle response, torque delivery and, supposedly, fuel economy (though that will be entirely dependent on a well-trained right foot…). A valved exhaust system with larger exits, the 186mph top speed increase, aluminium intake pipes, lightweight 20-inch forged wheels and much more are available across all three variants.

Recommended

Visit/bmw/3-series/202575/alpina-d3-s-turns-black-pump-3-series-to-11
BMW 3 Series

Alpina D3 S turns black pump 3-series to 11

5 May 2020
Visit/bmw/3-series/202527/this-dahler-bmw-m340i-xdrive-is-an-m3-touring-alternative
BMW 3 Series

This Dähler BMW M340i xDrive is an M3 Touring alternative 

27 Apr 2020
Visit/bmw/3-series/202267/new-bmw-m340d-xdrive-saloon-and-touring-revealed-with-516lb-ft-of-torque
BMW 3 Series

New BMW M340d xDrive Saloon and Touring revealed

20 Feb 2020
Visit/bmw/3-series/201728/455bhp-alpina-b3-touring-priced-from-ps67950
BMW 3 Series

455bhp Alpina B3 Touring priced from £67,950

4 Feb 2020

Most Popular

Visit/ferrari/203127/ferrari-omologata-revealed-latest-bespoke-commission-a-v12-super-coupe
Ferrari

Ferrari Omologata revealed – latest bespoke commission a V12 super coupe

One-off Ferrari Omologata revealed with bespoke body 789bhp V12 engine
25 Sep 2020
Visit/bmw/m3-saloon/20529/all-new-bmw-m3-competition-revealed-an-icon-reborn
BMW M3 saloon

All-new BMW M3 Competition revealed – an icon reborn

This is the all-new BMW M3 Competition saloon which will join the M4 Competition coupe in BMW M’s new M3/4 family
23 Sep 2020
Visit/peugeot/508/22305/2020-peugeot-508-sport-engineered-unveiled-bmw-3-series-rival-turned-to-355bhp
Peugeot 508

2020 Peugeot 508 Sport Engineered unveiled – BMW 3-series rival turned to 355bhp

Peugeot’s first Sport Engineering model has finally been uncovered, the hot 508 featuring a range-topping hybrid powertrain
24 Sep 2020
Visit/hyundai/202950/updated-hyundai-i30-n-revealed-with-optional-dual-clutch-box
Hyundai i30 N

Updated Hyundai i30 N revealed with optional dual-clutch ‘box

It was the hot hatch that upset the status quo, and now the i30 N is back with more power and tech
24 Sep 2020