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Old 01-29-2013, 06:53 AM
Oceans10's Avatar
Oceans10 Oceans10 is offline
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Location: CT
Join Date: Jul 2011
Posts: 1,605
Mein Auto: BMW 535i + 535XI wagon
Same exact engine in the 535, but it does weigh a little more. This will slow down launches compared to the 1 and 3 series.
What's nice about the twin scroll single turbo is that power keeps building right up to redline, similar to an M5 but more powerful. It sounds like a friggin jet engine taking off. There are clips on Youtube.

RB turbos are cheaper and based on the stock assemblies. You trade in your existing and they send you the larger ones. They add about 100 hp. Fully modded with tune, downpipes, FMIC, meth etc, that's how you see 500 hp to the wheels. Add around 20% to get BHP at the crank. Cost is $3,200 plus another grand for installation.
I heard the single is more expensive but haven't seen numbers. I have plenty power for my needs.

Look at about 6 minute mark:

Audio: Jehnert Flatline speakers, Mobridge M1000 DA2 prepro, Helix P-DSP, Zapco Z-150.6 amp, CIC iDrive upgrade
Performance: MHD Pro Tune, AR Downpipes, ER FMIC/CP, DCI, RB turbos and inlets, KW V2 coilovers, Fuel-It Stage 2 pump w Ported fuel rail, Mfactory LSD

Last edited by Oceans10; 01-29-2013 at 07:04 AM.
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