21st November 2011, 21:57
m5board.comoholic (>1000 posts)
Hi guys, I thought I'd chime in...
So my current exhaust set up includes the RPI headers with a full Dinan exhaust, including the racing midpipes. Oh, and Dinan Stage 2 tune.
So lovin' the nastiness of the system, I'm like a menace everywhere I drive the E60. Just wicked!!!
After I got the RPI headers installed, everything ran fine with no check engine light whatsoever for a few months. Then out of the blue, the CEL came one with the message "Increased Emissions" on my iDrive screen. I'm assuming that I need to get another tune to properly work with my catless set up right? Also, I think my car is due for smog in February. I have no issue putting back the cat section of the headers and even putting back my stock section 1 & 2. But my question would be...will it wreak havoc on my car's systems if I put back all 4 cats while running a new tune meant for a catless set up? Coz for smogging, the CEL can't be on at all or else they'll fail me.
Has anyone encountered this situation before?
BTW, heading to SF for Thanksgiving and I usually stop at Dinan to do some xmas shopping. Those damned web banners showing they have a 15% off sale until Oct. 31 make me think that Gustav and/or the marketing guys at Dinan have a sick, masochistic and demented way of torturing me.
2006 Dinan S2 M5 Silverstone II / Indianapolis Red - So want the stroker!
2001 M5 LeMans Blue / Black Extended Leather - DD
UNDER CONSTRUCTION - 2000 Dinan S4 E39 M5 Touring Anthracite Metallic / Full Black Ostrich Extended
SOLD - 2001 Dinan S2 540iT M Sport Orient Blue / Sand Beige
SOLD -1995 Dinan 540i M Sport Cosmos Black / Black Leather - #20 of 200 pcs.
PARTED OUT - 2001 BMW M5 Anthracite Metallic / 2-tone Silverstone Extended (R.I.P)
PARTED OUT - 2001 BMW M5 Anthracite Metallic / Carmel Extended (R.I.P.)
SOLD - 1993 BMW Euro M5 3.8 Touring Diamond Schwarz Metallic / Alcantara Suede - Oh how I miss u.
SOLD - 1988 BMW US Spec M5 Schwarz / Natur w/ 77k miles - complete Euro conversion - The Museum Piece.