Secondary Cat Delete vs Warranty

drgmt · 03-14-2018, 02:21 PM

Quote:

Originally Posted by JayZap16

Quote:

Originally Posted by Modaddict79

That's a great thing.

Two practical points - it costs money to fight a warranty denial in court.

Once you add power it would reasonable for any court to conclude that on the balance of probabilities, the power bump may have contributed to the malfunction in the drivetrain or engine.

Given that most people running a midpipe also tune to deal with the check engine light - it becomes a tough argument to win.

The act was designed to allow aftermarket parts and servicing etc to protect the consumer. It wasn't designed to protect you if you add 60hp and blow the turbo.

What do you mean "deal with check engine light", does a mid pipe trigger a check engine light?

Sorry I meant downpipe!

svr21 · 12-09-2018, 10:25 PM

Never knew that....

TatuBuilt · 12-10-2018, 12:02 PM

Quote:

Originally Posted by Pate68

i just had my cat delete installed with an MPE from a bmw dealer - they said its not a problem.

MPE doesnt remove secondary cats. Its required to cut your factory exhaust and fit to the mpe right after the secondary cats. There are too many variables to know for sure if OP will have his warranty flagged for no sec cats. But if his dealer were strict then yes. His car would be flagged.

darkbluemn · 12-10-2018, 03:21 PM

I heard from my friend once that he got warranty denied for a Subaru when came to engine issue. Dealer said he modified the axle back exhaust and that was the reason of engine failure because of the lack of back pressure.

So obviously that not the issue but if dealer said that, are you going to throw a tech book or write a research to against their conclusion? Even you have strong reason, the dealer can still say "we think it's because of lacking back pressure, that's what we found out".

LOW4LYF · 12-10-2018, 05:26 PM

Quote:

Originally Posted by darkbluemn

I heard from my friend once that he got warranty denied for a Subaru when came to engine issue. Dealer said he modified the axle back exhaust and that was the reason of engine failure because of the lack of back pressure.

So obviously that not the issue but if dealer said that, are you going to throw a tech book or write a research to against their conclusion? Even you have strong reason, the dealer can still say "we think it's because of lacking back pressure, that's what we found out".

Warranty gets not denied by the dealer, only BMW NA does that.

yaymitch · 12-10-2018, 11:40 PM

I just ask my SA anytime I do anything just to be safe. I have Akra Evo and it deletes secondary cats and my SA said it was no big deal.

12-09-2018, 10:25 PM	#24
svr21 Private First Class 32 Rep 162 Posts Drives: 18 M4 ZCP Yas Marina Blue Join Date: Dec 2018 Location: White Rock, BC iTrader: (0)	Never knew that....
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12-10-2018, 03:21 PM	#26
darkbluemn Second Lieutenant 105 Rep 236 Posts Drives: 2017 BMW M4 F82 Join Date: Feb 2017 Location: New Jersey iTrader: (1)	I heard from my friend once that he got warranty denied for a Subaru when came to engine issue. Dealer said he modified the axle back exhaust and that was the reason of engine failure because of the lack of back pressure. So obviously that not the issue but if dealer said that, are you going to throw a tech book or write a research to against their conclusion? Even you have strong reason, the dealer can still say "we think it's because of lacking back pressure, that's what we found out".
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12-10-2018, 11:40 PM	#28
yaymitch Major 868 Rep 1,247 Posts Drives: 2020 M2CS & 2022 RSQ8 Join Date: Jul 2008 Location: Houston iTrader: (2)	I just ask my SA anytime I do anything just to be safe. I have Akra Evo and it deletes secondary cats and my SA said it was no big deal. __________________ 2020 BMW M2CS HS 6MT 2022 Audi RSQ8
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