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      11-04-2014, 12:33 PM   #1
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Drives: z4
Join Date: Jul 2010
Location: phx

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Catless downpipe + Cobb = CEL?

Before i pull the trigger, does anything special need to be done with the Cobb if you have a catless downpipe? I want to make sure i dont throw a CEL and dont want to spend the extra money for a catted downpipe.

Just want to make sure i understand how it works.
2011 BMW Z4 35i | 19" BBS CH-R's | 3D Front Lip + Rear Diffuser + Side Splitters | Cobbv3 | Remus Exhaust | Eibach Springs | M-Sport Rear Bumper | AFE Intake | Wagner FMIC | Wagner DP's | Lux v5 | VTT Inlets | Supersprint mids | ER chargepipe | Tial BOV | 448whp/489lbs |
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      11-04-2014, 01:57 PM   #2

Drives: 2013 E92 M3; 2010 Z4 35i
Join Date: Apr 2013
Location: San Diego, CA

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The Cobb Stage 2 tune will take care of the CEL from a catless downpipe. And, frankly, if you're going to get a CEL from a catless DP, you're likely going to get a CEL from a DP with a race cat. So I wouldn't let that be the deciding factor.
E92 M3: BPM Sport Stg. 2 | Akrapovic Evolution | Brembo GT 380/380 | Ohlins R&T w/ Vorshlag CPs | RD Sport ARBs | BBS FIs 18"

E89 Z4 35i: Cobb Stg. 1+ | Evolution Racewerks FMIC | Tial BOV
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