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2011 BMW 335is - Are the Changes Enough?


BMW recently announced the 2011 model 335is twin turbo will have power, transmission and cooling enhancements vs. the prior year 335i. I question if these enhancements will enough to sway the enthusiast to purchase the standard 335i with the single turbo. Not giving the car a limited slip differential remains a huge disservice.

The 335is will have 320 horsepower with its revised twin-turbo 6-cylinder engine, up from 300hp. Also 7 seconds of overboost will be available raising the torque figure from 332ft lbs to 370ft lbs. This isn't really an improvement over existing aftermarket tuners such as Dinan (which offers a warranty) and Burger Motorsports Juice Box series.
Potentially bigger news is the Non-S model now has a single turbo instead of the "twins". Likely significantly larger in size than the twins in the "S" and last year's model, this will mean greater potential for adding power in the aftermarket.
The 6-speed automatic is replaced by the 7-speed dual clutch transmission which probably won't mean turbo boost levels will fall off since the Nissan GT-R and Porsche 911 Twin Turbo manage. But if the gear ratios are the same from the M3, the 6-speed manual has been shown to be the quicker car once the speeds are above 120mph. Will the DCT transmission withstand higher-than-stock power levels?
An upgraded radiator and motor mounts are included as well for track duty. What is really questionable is the decision to leave out a limited slip differential. Making a car more track ready with more power, a fast shifting automated transmission and cooling enhancements without adding an LSD is like making it a better burnout competition entry. Check out this article on the new McLaren MP4-12C supercar not having an LSD and the problems this poses.
While improving the breed, BMW potentially makes the base 335i the enthusiast's choice with a single turbo system and the "S" model still doesn't have a key performance element. Still world class, will the 335is meet sales expectations vs. the non "S"? Will the automatic transmission, now no longer available, be the desired transmission at the 75,000 mile mark? And will the need for an LSD make itself even more apparent?
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BMW 335i Coupe

Will the single turbo 335i be the model to choose vs. the 335is? Is the lack of a limited slip becoming a bigger detriment?
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