dual twin turbocharger exhaust
Is it normal for exhaust to come out of only one exhaust while idling!

The 2011 BMW X6 answers the question, "What would happen if you tried to turn a two-door luxury coupe into a crossover SUV?" If that doesn't confuse you, the BMW X6 in its various guises could be worth considering.
Actually, the German automaker calls the X6 a "sports activity coupe" which seems to make sense given the fact that the roofline slopes quickly to the rear. In fact, outside of its raised suspension and somewhat larger size, it could be confused for a four-door BMW sedan or a stretched 6 Series.
A 2011 BMW X6 comes in four all-wheel drive varieties: the xDrive35i, the xDrive50i, the Hybrid, and the X6 M. The xDrive35i and the xDrive50i differ chiefly in engine size, the 35i featuring a turbocharged six-cylinder making 300 horsepower and the 50i having a twin-turbocharged V8 offering 400 hp, along with 450 lb-ft of torque.
All trims of the BMW X6 come with a new eight-speed automatic transmission that replaces the old six-speed, allowing for better control of the SUV's power band. With the xDrive all-wheel-drive system, power can be transmitted fully to the front or rear wheels as necessary and shifted between the left and right rear wheels as well. Drivers also benefit from an adaptive suspension system that firms up the ride for more sporty driving.
On the interior, the 2011 BMW X6 resembles its larger cousin, the X5, although its four seats offer more support, and padding on the center console will protect one's legs during hard turning. A large rear center console eliminates the rear center seat, and the sharply descending rear roofline means that the back seats aren't adjustable. Expect 25 cubic feet of storage with all four seats up and 60 with the rear seats folded.
Where the BMW X6 really excels is in handling and acceleration. Even the base xDrive35i trim can get from 0-60 mph in just over 6 seconds while offering a 23 mpg combined mileage rating. Add to that its adaptive all-wheel-drive system and many reviewers marvel at the car-like ability of the X6 that belies its size and heft. The xDrive50i goes 0-60 in 5.2 seconds and has a combined city/highway mileage rating of 20 mpg.
The X6 M ramps things up a notch with a twin-turbocharged V8 engine with 555 hp and 500 lb-ft of torque. That shaves 1.5 seconds off its 0-60 time. It also gets a tuned suspension that firms up the ride and lowers it as well. It's easily visible as a sports-minded trim by its enlarged air intakes, front fender vents, and quad tailpipes, along with special 20-inch wheels. Combined fuel mileage averages 17 mpg.
The Hybrid manages to boost fuel economy to 18 mpg combined while still offering 40 more horsepower than the xDrive50i, for a total of 480. That's in part because its twin-turbo V8 is mated to two electric motors, enabling it to get from 0-60 mph in 5.4 seconds, while using the electric motors only up to 37 mph. The batteries, located underneath the cargo area, take advantage of the X6's high waistline so that the already cramped trunk isn't further compromised.
Whichever option buyers consider, the 2011 BMW X6 offers a lot of power in a package that looks sleek but very distinctive. For those who need only four seats, it could be an interesting alternative to other crossovers that offer more cargo capacity but less road feel and fewer grins on twisting roads.
Is it normal for exhaust to come out of only one exhaust while idling!
I've had 5 bad experiences at dealerships here on your cite.
It's a bmw x6 a good and reliable car or give a lot mechanical trouble?
Air Conditioning
Active charcoal air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: diversity · IPod auxiliary audio input · Wireless headphones · Single disc in-Dash CD · AM/FM radio · Satellite Radio: SiriusXM · 2 subwoofers · Total Number of Speakers: 12
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 13.7 · Front brakes: ventilated disc · Rear brake diameter: 13.6 · Rear brakes: ventilated disc
Comfort Features
Center console trim: alloy · Dash trim: leather · Door trim: alloy · Floor Material: cargo area carpet · Shift knob trim: alloy · Steering wheel trim: leather
Convenience Features
Cargo cover: retractable · Center console: front console with armrest and storage · Cruise control: adaptive · Cupholders: rear · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · One-touch windows: 4 · Power steering: Servotronic · Power windows: lockout button · Reading lights: front · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: paddle shifter · Vanity mirrors: dual illuminating
Driver Seat
Active driver support: active bolstering · Adjustable lumbar support: power · Power adjustments: 10
Drivetrain
4WD Type: full time · Axle ratio: 3.15
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: chrome · Front bumper color: body-color · Grille color: black with chrome accents · Mirror color: body-color · Rear bumper color: body-color · Rear trunk/liftgate: liftgate
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2
In Car Entertainment
Infotainment screen size: 6.5 in. · Video monitor location: rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: self-leveling · Taillights: adaptive
Mirrors
Exterior mirrors: auto-dimming
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 10
Rear Seats
Heated: multi-level heating · Type: bucket
Roof
Moonroof: power
Safety
Active head restraints: driver · Camera system: rearview · Impact sensor: fuel cut-off · Parking sensors: front
Seatbelts
Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Heated: front seats · Passenger seat power adjustments: reclining · Rear seat folding: split · Upholstery: leather · Ventilated: front
Spare Tire
Kit: inflator kit · Mount Location: inside · Size: temporary
Spare Wheel
Rim Type: steel
Stability and Traction
Stability control: electronic
Steering
Steering ratio: 19.5
Suspension
Front Arm Type: lateral links · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Navigation system: hard drive navigation system · Phone wireless data link: Bluetooth · Satellite communications: BMW Assist
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: ready
Wheels
Wheel spokes: 5
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: with washer
Air Conditioning
Active charcoal air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Rear side airbags · Front side curtain airbags
Audio System
Antenna Type: diversity · IPod auxiliary audio input · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · XM or Sirius satellite radio · 2 subwoofers · Total Number of Speakers: 12
Brakes
ABS: 4-wheel · Braking assist: hill start assist · Front brake diameter: 14.4 · Front brakes: ventilated disc · Rear brake diameter: 13.6 · Rear brakes: ventilated disc
Comfort Features
Center console trim: alloy · Dash trim: leather · Door trim: leather · Floor Material: cargo area carpet · Shift knob trim: alloy · Steering wheel trim: leather
Convenience Features
Cargo cover: retractable · Center console: front console with armrest and storage · Cruise control: adaptive · Cupholders: front · Memorized settings: side mirrors · Multi-function remote: keyless entry · One-touch windows: 4 · Power steering: Servotronic · Power windows: lockout button · Reading lights: front · Steering wheel: power tilt and telescopic · Steering wheel mounted controls: paddle shifter · Storage: seatback · Vanity mirrors: dual illuminating
Driver Seat
Active driver support: active bolstering · Adjustable lumbar support: power · Power adjustments: 16
Drivetrain
4WD Type: full time · Axle ratio: 3.15
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: chrome · Front bumper color: body-color · Grille color: black with chrome accents · Mirror color: body-color · Rear bumper color: body-color · Rear trunk/liftgate: liftgate
Headrests
Front headrests: power adjustable · Number of front headrests: 2 · Number of rear headrests: 2
In Car Entertainment
Infotainment screen size: 8.8 in. · Video monitor location: rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: low fuel level
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on · Taillights: adaptive
Mirrors
Auto-dimming mirrors: rearview · Exterior mirrors: heated
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 16
Rear Seats
Heated: multi-level heating · Type: bucket
Roof
Moonroof: power
Safety
Active head restraints: driver · Camera system: rearview · Impact sensor: fuel cut-off · Parking sensors: rear
Seatbelts
Seatbelt force limiters: front · Seatbelt pretensioners: front · Second row seatbelts: 3-point
Seats
Driver seat power adjustments: height · Front seat type: sport bucket · Heated: front seats · Passenger seat power adjustments: height · Rear seat folding: split · Upholstery: leather · Ventilated: front
Spare Tire
Kit: inflator kit · Mount Location: inside · Size: temporary
Spare Wheel
Rim Type: steel
Stability and Traction
Stability control: electronic
Steering
Steering ratio: 19.5
Suspension
Front Arm Type: lateral links · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Navigation system: with voice recognition · Phone wireless data link: Bluetooth · Satellite communications: BMW Assist
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Towing and Hauling
Trailer hitch: ready
Wheels
Wheel spokes: 5
Windows
Front wipers: rain sensing · Liftgate window: fixed · Rear wiper: with washer
Air Conditioning
Active charcoal air filtration · Automatic climate control front air conditioning · Dual front air conditioning zones · Rear air conditioning: with independent controls · Dual rear air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: diversity · Auxiliary audio input: iPod/iPhone integration · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · HD radio · XM or Sirius satellite radio · 2 subwoofers · Total Number of Speakers: 16 · 600 watts
Brakes
ABS: 4-wheel · Front brake diameter: 15.2 · Front brakes: ventilated disc · Rear brake diameter: 13.6 · Rear brakes: ventilated disc
Comfort Features
Center console trim: alloy · Dash trim: alloy · Door trim: alloy · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Cargo cover: retractable · Center console: front console with armrest and storage · Cupholders: rear · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: vehicle and key memory · One-touch windows: 2 · Power steering: speed-proportional · Power windows: lockout button · Reading lights: rear · Steering wheel mounted controls: audio · Sunshade: side window · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 20
Drivetrain
4WD Type: full time · Axle ratio: 3.64
Engine
Electric Motor HP: 86 · Electric Motor Power Output (Kilowatts): 63 · Electric Motor Torque: 206 · Hybrid Gas Engine HP: 400 · Hybrid Gas Engine HP@RPM: 5500 · Hybrid Gas Engine Torque: 450 · Hybrid gas Engine Torque@RPM: 1800
Exterior Features
Door handle color: body-color · Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · Mirror color: body-color · Rear trunk/liftgate: power operated · Running boards: chrome · Window trim: chrome
Headrests
Front headrests: power adjustable · Number of front headrests: 2 · Number of rear headrests: 2
In Car Entertainment
Infotainment screen size: 8.8 in. · Video monitor location: rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: coolant temperature warning
Lights
Headlights: cornering · Taillights: adaptive
Mirrors
Exterior mirrors: power folding
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 20
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: one-touch open/close
Safety
Active head restraints: driver · Camera system: rearview · Parking sensors: front · Rearview monitor: in dash
Seatbelts
Seatbelt force limiters: front and rear · Seatbelt pretensioners: front · Second row seatbelts: 3-point
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Heated: front seats · Passenger seat power adjustments: reclining · Upholstery: leather · Ventilated: front
Steering
Steering ratio: 19.5
Suspension
Front Arm Type: lateral links · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: strut · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): front
Telematics
Navigation system: with voice recognition · Phone wireless data link: Bluetooth
Tires
Type: performance
Tires and Rims
Wheel type: aluminum alloy
Towing and Hauling
Trailer hitch: ready
Windows
Front wipers: variable intermittent · Liftgate window: fixed