[G.Newt]

Originally Posted by Kefka

Anyone using it in a longterm? Please share results about cel light.

Regards!

https://f30.bimmerpost.com/forums/se...rchid=62301372

[mike@x-ph.com]

Im happy to report that we still have not had a single CEL issue with any CG precision downpipe.

[DrifterX]

Reviving this thread again as I’m thinking of a quality catted downpipe for my 340i.

Does anyone with a flash tune or an upgraded HPFP have this downpipe? I’m wondering how well the catalytic converter is holding up with respect to heat with moderate/MPPSK burble (clogging?) or if a CEL is popping up with the additional fueling.

[mike@x-ph.com]

Originally Posted by DrifterX

Reviving this thread again as I’m thinking of a quality catted downpipe for my 340i.

Does anyone with a flash tune or an upgraded HPFP have this downpipe? I’m wondering how well the catalytic converter is holding up with respect to heat with moderate/MPPSK burble (clogging?) or if a CEL is popping up with the additional fueling.

I dont think we ever had a CEL issue with this product

that being said, eventually all cats will fail even stock

[orbE46]

Are there any safety issues using this downpipe without a tune?

[Uni-Rapide]

Originally Posted by orbE46

Are there any safety issues using this downpipe without a tune?

I'm not sure what you mean by safety issues so I would say no.
However you will get a little bit more power so all rotating parts will wear out slightly faster, if that's what you mean?

[orbE46]

Originally Posted by Uni-Rapide

I'm not sure what you mean by safety issues so I would say no.
However you will get a little bit more power so all rotating parts will wear out slightly faster, if that's what you mean?

Thanks. I mean, I know with Subarus you shouldn't do a downpipe before tuning because it'll lean out at full boost. Was wondering if that could happen on the B58.

[lixiang7349]

Where are you guys getting your labor quotes?
I live in portland, OR and asked around for dp installation cost. They all quoted me around $800. I wanted to get one but scared away by the high labor cost.

[G.Newt]

Originally Posted by lixiang7349

Where are you guys getting your labor quotes?
I live in portland, OR and asked around for dp installation cost. They all quoted me around $800. I wanted to get one but scared away by the high labor cost.

800? I went to an ordinary exhaust shop, not a BMW one. Less than $150 including tax. About an hour and a half and mine is xDrive. Was about the same cost to install my catback as well.

[lixiang7349]

Originally Posted by G.Newt

800? I went to an ordinary exhaust shop, not a BMW one. Less than $150 including tax. About an hour and a half and mine is xDrive. Was about the same cost to install my catback as well.

Exhaust Specialties & Brakes
8866 SW Old Tualatin-Sherwood Rd, Tualatin, OR 97062
(503) 692-6555
https://goo.gl/maps/FR9sA5cxxQBRxkTC9

Something like that?

No one has cel issues with CG?

[NCBlueDevil]

Originally Posted by mike@x-ph.com

Im happy to report that we still have not had a single CEL issue with any CG precision downpipe.

What, if any, tune are you running alongside the DP?

[mike@x-ph.com]

Originally Posted by NCBlueDevil

What, if any, tune are you running alongside the DP?

We have sold hundreds of CG downpipes, im sure some were stock, and others were tuned with flash or piggybacks

[lemonana]

My first Mod since 2016, running over 50000km without a issue or CEL

Cost me only 600 back then and 100 for the installation