We made deep search of market and supply for power exhaust that will really boost our otherwise very fine N52 engines.
Nothing really good yet appeared for 125i/128i neither in US nor in Europe, except nice looking cosmetic silencers and other BS.
N52 has great potential for reaching healthy 260-280 HP (depending on ECU tuning) at reasonable costs, without turbos and superchargers + further 15-30HP on intake-decat-straight pipe exhaust optimization.
For reference:
German and our domestic chip tuners easily brings ECU to yield 265-272HP +20% torque increase from engine (in Germany it cost ~2000-2400 $, here is much less, around 1200 $). It is no brainer for good cracker.
Integral solution with optimized air intake + catless downpipes-straightpipe-silencer is necessary to wind up engine's full potential after (or without) ECU chip optimization is done.
RissRacing has completed R&D for that now, but due to complete lack of interest (other than verbal of course) they can't order production of parts (or they will be stupid expensive).
RissRacing could make such system comfortably priced (look at 135i) for group buy and know is moment of truth.
Either we do it
or stop asking questions on forums about N52 power increase
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