Since the original aesthetic tweaks came about, Kelleners hasn’t made any changes to the exterior appearance. They did release a more comprehensive image gallery of their new star.

In the meantime, they’ve been rather busy working on what’s going on behind the scenes. That’s my kind of work if I’m honest.

The newly added 20 inch alloy wheel options may not be the best thing to ever happen when talking about a newly tweaked car dynamically, but there’s no doubt that the’ll add some appeal to the final product.

Cruisers will love those, the rest of us driving oriented folk will stick to the 19 inch ones and have a look at what can Kelleners do with your engine power output.

Thanks to simple piggy back ECU kits and exhaust updates here’s what you can have. The 320d diesel version can go from 184 to a much more meaty 218 horsepower.

Then there’s the 328i version. While it produces 245 horsepower as standard and it feels great, the Kelleners Sport offered 294 horses do sound somewhat better.

Finally, the current gem of the BMW 3 Series lineup, the 335i goes from a standard 306 hp to an M division taste of 367 ponies.

All models come with proportional increase in torque figures and hardly noticeable fuel consumption changes. Let’s not forget the Germans are still obsessed with efficiency.

The post Kelleners Sport F30 BMW 3 Series – Update appeared first on BMW Car Tuning BLOG - BMW Car Modifications and Customization.

The Germans have worked their magic once again and though this package looks substantially different from the one you get as standard, the Hartge Z4 still feels like a Bavarian product.

And if you reckon the look is something to admire, the technology underneath it is probably going to be soothing.

Under the bonnet, Hartge offers up special package s for the sDrive35i and the sDrive35is packages (the sDrive28i is the one that’s missing).

The mid range six cylinder engine goes from the standard 306 horsepower up to 340. The torque figure is also improved and now stands at 369 lb-ft.

The more potent version of the same engine starts at 340 horsepower but goes all the way up to 401, with a new torque figure standing at 391 lb-ft.

Everything was simply achieved thanks to an ECU remap and a new exhaust kit. At least the handling package does feature a new suspension.

From here on we get to that body I was talking about earlier. It’s much better looking than ever before and it’s complete.

The Hartge BMW Z4 gets a fresh front spoiler and
HARTGE lip for boot lid as well as a few other more upgrades that are trickier to spot.

Inside the Hartge BMW Z4 E89 there’s a liberal use of fine materials, aluminium polished bits and a further refined level of leather.

The post Quick look – Hartge’s BMW Z4 appeared first on BMW Car Tuning BLOG - BMW Car Modifications and Customization.