Quote:
Originally Posted by Rikkem
X-pipe а bad idea for this engine. The sound will get much worse. Instead of a brutal v8 sound, you get a buzzing of v6.
The best sound from this engine is the standard exhaust and downpipe without a catalyst. And open the flaps on the exhaust to permanently (I kept the axis welded).
Also for this engine must have cool running oil and water thermostat.
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There is NOTHING brutal sounding about the V8 in our platform...the turbos all but muffle all of the V8 sound, not to mention this engines architecture is different than a normal V8 from say an E39 M5 so we'll never have that sound. The M5 and M6 have x-pipes installed from the factory, so other than being a TU engine, clearly BMW knows something you don't and they surely don't sound like a buzzing V6.
I'll agree on downpipes and opening the exhaust valves.
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'10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2"
'98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's
'97 BMW 328ci - ///E36 M3 clutch & L/W flywheel, Z4///M 18's