Friday, 10 June 2011

bmw 335i

bmw 335i


On paper, BMW's N54 turbo inline six was a tuner's dream. Direct injection, front-mounted intercooler and twin turbos, all attached to BMW's legendary drive dynamics. Most figured a simple software upgrade would make big power for very little cost. But it quickly became clear it was going to take considerable time and resources to penetrate the Siemens DME's defenses in order to manipulate the MSD80/81 code. This left some to develop external piggyback devices, but these simply acted as blinders, tricking the computer into thinking it's doing one thing when it's really doing something else. Now, GIAC has released its Stage 1 flash, and we just had to test it.



Bmw 335I Performance Upgrades Engine Shot
Baseline

Peak power:
265 hp @ 5550 rpm
Peak torque:
284 lb-ft @ 3175 rpm
Temperature: 80° F
Humidity: 24%





bmw 335i


Bmw 335I Performance Upgrades Chip Shot
Test 1

Performance
Peak power: 313 hp @ 5,500 rpm
Peak torque: 331 lb-ft @ 3,175 rpm
Max power gain: 60 hp @ 6175 rpm
Max torque gain: 63 lb-ft @ 4250 rpm
Bmw 335I Performance Upgrades Graph One
Pros
• OBD port flashing allows the ECU and harness completely unmolested
• Increased throttle response and smoother power transitions
• Increase rev limiter to 7200 rpm
• Speed limiter is removed in the DME
software (not by altering vehicle speed sensor data) leaving ABS and DSC functions unaffected
• DME receives accurate data from the engine sensors, giving the ability to be more proactive instead of reactive, allowing DME to deliver the proper amount of fuel, cam and engine timing based on real world conditions
• 100% reversible
Bmw 335I Performance Upgrades Exhaust Shot
Test 2

Performance
Peak power: 311 hp @ 5950 rpm
Peak torque: 330 lb-ft @ 3125 rpm
Bmw 335I Performance Upgrades Graph Two
Pros
• 2.5-inch fully mandrel bent stainless steel tubing
• 21-pound weight savings over the stock system
• Merge X-Pipe is designed to create a vacuum between the right and left exhaust pipes, increasing exhaust gas velocity
• Merge X-pipe designed to deepen sound while reducing droning
• Borla Million-Mile Warranty offers replacement parts if the product has any defects in materials and workmanship for 1,000,000 miles


bmw 335i

bmw 335i

bmw 335i

1 comment:

  1. Very nice! It is supper model car. It’s my dreamed supper car. Car Exhaust Systems

    ReplyDelete