Mppk exhaust with downpipe noises

eric97h · 04-27-2019, 12:19 PM

I don’t know why but Mppk has weird exhaust noises with my downpipe could be without it as well. On cold starts it has some rattles or feels like something underneath car like a metal jingle . Also in comfort noise when shifting it 2k rpm it makes this like cheap metallic noise on the shifts In comfort and sport from time to time I have some weird buzzing noise coming from the rear seats it seems.

Beek · 04-28-2019, 10:04 AM

I’ve had the “metal jingle” on cold start ever since I had MPPSK installed but it goes away (or I no longer hear it) as soon as the exhaust valves open so I ignore it. I’ve never noticed the other issue’s you describe.

eric97h · 04-28-2019, 02:10 PM

Quote:

Originally Posted by Beek

I’ve had the “metal jingle” on cold start ever since I had MPPSK installed but it goes away (or I no longer hear it) as soon as the exhaust valves open so I ignore it. I’ve never noticed the other issue’s you describe.

Ya your right I’m taking it to dealer let’s see what they say about it

Antec800 · 04-28-2019, 08:43 PM

Quote:

Originally Posted by eric97h

Ya your right I’m taking it to dealer let’s see what they say about it

They are going to blame the noise on your downpipe and possibly void your warranty

eric97h · 04-29-2019, 10:25 AM

Quote:

Originally Posted by Antec800

They are going to blame the noise on your downpipe and possibly void your warranty

Well my stock downpipe is going to be on when I go to the dealer

04-27-2019, 12:19 PM	#1
eric97h Bmw340i Mppsk, bm3 tune,vrsf downpipe dinan intake 96 Rep 176 Posts Drives: Bmw 340i fbo Join Date: Sep 2018 Location: California iTrader: (0)	Mppk exhaust with downpipe noises I don’t know why but Mppk has weird exhaust noises with my downpipe could be without it as well. On cold starts it has some rattles or feels like something underneath car like a metal jingle . Also in comfort noise when shifting it 2k rpm it makes this like cheap metallic noise on the shifts In comfort and sport from time to time I have some weird buzzing noise coming from the rear seats it seems. __________________ \|340i mppsk dinan intake vrsf catted downpipe\| \|full alcantera carbon fiber interior\| \|bootmod 91, 93 and full e85 tune stage 2 agg\| \|firehawk tires and hawk perfomance brake pads \| \|bimmer code, \| upgraded spark plugs full carbon exterior
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04-28-2019, 10:04 AM	#2
Beek Major 707 Rep 1,170 Posts Drives: Most folks crazy. Join Date: Dec 2015 Location: The Twin Cities iTrader: (0)	I’ve had the “metal jingle” on cold start ever since I had MPPSK installed but it goes away (or I no longer hear it) as soon as the exhaust valves open so I ignore it. I’ve never noticed the other issue’s you describe. __________________ '16 340xi Mineral Grey/Black Leather, MPSS on 18" 398 Orbit Grey wheels, ZF 8HP50, MPPSK+CF Tips, ZTR, ZMP, ZTP, ZCW, ZDA, ZDB, Black Kidney Grilles. '09 Outback for a beater and grocery getter.
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