downpipes for f80 m3 with a my dinan tune

[greekf80]

was thinking of installing downpipes for my f80 m3. i just got the dinan tune was wondering which ones wont cause a check engine light. Also will i have a problem with warranty? will it make a difference with a catless downpipe power wise

[JNoSol]

There's no DPs option that is "warranty safe." Unless the DPs are catted (which doesn't gain much over stock), you're going to get a CEL. This is why people run JB4 with catless DPs (most gains and no CEL). If you chose Dinan, then warranty is your #1 concern so I wouldn't recommend catless DPs. Get a nice set of intake and exhaust instead.

[greekf80]

thanks for your help

[mike@x-ph.com]

Originally Posted by JNoSol

There's no DPs option that is "warranty safe." Unless the DPs are catted (which doesn't gain much over stock), you're going to get a CEL. This is why people run JB4 with catless DPs (most gains and no CEL). If you chose Dinan, then warranty is your #1 concern so I wouldn't recommend catless DPs. Get a nice set of intake and exhaust instead.

+1

[MDIVISION]

Originally Posted by greekf80

was thinking of installing downpipes for my f80 m3. i just got the dinan tune was wondering which ones wont cause a check engine light. Also will i have a problem with warranty? will it make a difference with a catless downpipe power wise

You can also go with ESS Tune (maybe more reliable and less issues than JB4) and MS Valve Control. No check engine light and ability to close the valves when you don't want to wake everybody up in your zip code

[Ian1973]

well since he paid over 2,000 for his tune, I'm thinking switching companies now for other non-warrantied tunes isn't an option.

[LongBeachDinanFan]

Originally Posted by greekf80

was thinking of installing downpipes for my f80 m3. i just got the dinan tune was wondering which ones wont cause a check engine light. Also will i have a problem with warranty? will it make a difference with a catless downpipe power wise

Any non-Dinan part will void your Dinan warranty as does racing on a track. So downpipes are not the best idea. If you must do it get the BMS OBDII module. It's half the price of the MS one, does more, and does not require those ghetto wire taps that leave marks behind once removed.