500 HP Upgrade for the BMW 135i Coupe
But you don’t have to wait that long if you want something more powerful than the 135i. Vivid Racing offers a turbo upgrade kit which unleashes almost 200 more horsepower, for a total of 500 horsepower.
The turbo upgrade of the 135i’s N54 engine uses the OEM Mitsubishi TD03 turbos which are then modified with a new compressor wheel and a seven degree turbine clip. Vivid Racing says BMW successfully eliminated turbo lag with the design of these turbos, but left a lot of room to gain on the mid to top end RPM range. “Where the stock turbos fall flat, this turbo upgrade will have your car pushing Porsche like 0-60 times and 1/4mile times,” reads Vivid Racing’s press release.
By modifying the compressor and clipping the turbine wheel, the tuners were able to gain as much as 60 horsepower to the crank over the stock turbochargers with supporting models. The cost associated with this turbo upgrade is based on a core charge. Vivid Racing has upgraded turbos already available or can work on customers’ turbos.
If customers choose to use the core exchange program, they will be billed an additional $3,500 for the cost of new turbos. This amount will be refunded upon receipt of the original turbos. The process to modify the turbos requires precision machining and a complete disassembling to rebuild the turbos, meaning that even the cores are like getting new units.
To maximize the power, clients will need additional power parts to take advantage of what these turbos can do. Vivid Racing recommends the following items: Agency Power Downpipes, Agency Power Midpipes, Agency Power Muffler, Agency Power Intercooler, Injen Intake System and Upgraded Fuel Components.