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Re: Dinan Throttle Bodies & Velocity Stacks ... or ... SS Headers & Cats??
Hmmm, the air's gotta get out if you're gonna get it in... I'd lean toward the headers first, and as long as you're paying for it, i'd go the dinan route and keep the factory cats. My main concern would be passing ca. smog tests, and although dinan's headers aren't cal legal, i think it'd be less obvious than aftermarket cats, for the visual test. (although i had a shop initially tell me my m5 had aftermarket cats, i had to show them the roundels stamped into them)
Mike
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Mike
91 M5 Alpine White II, Silver Gray 3/90 production
17x8/17x9 M system with PS2, 20mm touring roll bar; Ground Control Coilovers; Confortti Chip, CD43; bmw/nardi blackline steering wheel, 3.8 Cam Gears
08 535i / 6 speed
Space Gray; Gray; Sport/Premium/Nav
00 M5 Ti Silver; Imola/black sportiv --Sold
Engine:
Supersprint Headers, Dinan CAI kit and MAFS, Throttle Bodies, Cams, Ported heads, Exhaust, Custom dinan software, Evosport Pullies, Dinan clutch and lightened flywheel; Ignition solutions plasma coils
Suspension:
Dinan Stage 3 with front and rear Strut Tower Braces, Beastpower Sway bar brackets, Dinan Wheels with 275/285 PilotSport, X5 Thrust arm bushings, Stoptech 355mm 4 piston front, 355mm 2 piston rear brake kit, Dinan 3.45 diff
Interior/Misc:
Eurodash, updated steering wheel, Bluetooth retrofit, Sirius Retrofit, hardwired V1, Widescreen Mk4 nav, M audio retrofit, Ice Link, BSW Stage 1 speaker upgrade, bmw towbar
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