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      09-23-2021, 12:19 AM   #206
blackoutF15
First Lieutenant
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Drives: BMW X5 x35i
Join Date: May 2021
Location: California

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After doing a little more research on a tune/chip I'm starting to think the MPPK might be the better option like some of you have mentioned. I've also come across an E-Flash Stage 1 ECU by ESS sold on ind-distribution that's caught my interest. Anybody know somebody who has this?

And now looking into this I think I want to also add a catless downpipe. The piece I'm looking at is from RG Sport and is called Evolution Racewerks Competition Series 4" Catless Downpipe. Has anyone added a catless or even catted downpipe to their X5 35i?
If you go with mppk tune you won't be able to do DP without getting check engine light. I'm sure you don't want that. But yes the one you mentioned from RG sport is one you'd want to get. I heard good things about it
Really? Is there no way around that? Thanks for the heads up I'll be sure to mention that to the shop that's been helping me out with some of these mods. Will the check engine light come on with any tune if I have MPPK?
Mppk is a tune from bmw so it still operates within the guidelines. Only aftermarket tunes can provide ability to disable cel when dp is installed. You would do one or the other because the tunes overwrite each other. I've been wanting to get the dp, even in talking to Ben from RG sport there's no way around with a factory tune.
What about that ESS tune I mentioned seeing from ind-distribution? Here's the link, https://ind-distribution.com/collect...mance-software

I wonder if that can disable cel when dp is installed? What other mods have you done to your X5? I swear whenever I think "that's it, I'm done" something else comes up LOL
Yes it has an option for you to select for at converter. If you'd want dp, then select removed/race cat. I don't know much about this tune so no comment on how it performs. I just know bm3 is really good aftermarket tune for the 35i and many on here like it.

Just the normal, lowered, 22s, cf stuff, RaceChip mppk charge pipe exhaust. Little stuff here and there. Yea there's so much you can do. Too many aftermarket parts offered for bmw.
I went to pick up my car today and spoke more to the guy who has been helping me. He said if I wanted to go with a catless dp that I should go with a tune from Eurocharged. A stage 2 tune from ECU with the catless dp will put me around 400 hp and I won't have a cel on.

But yeah tell me about it I feel like I always find the next thing when I get my car back. I think if I go through with the dp and tune I'll be good for a while…

I'll post some pics of what my car looks like now after adding spacers to my rear wheels, adding the dynoshield plus tinting my windshield and replacing my oem brakes with drilled/slotted rotors/ceramic pads
Nice wrap. I like the matte finish
Thanks man! It's actually a satin finish.

I think in one of my earlier posts I said I think I have the MPE, but now I'm not sure. Is there anyway to check? Another mod I'll have to now consider if I don't have it…
Yes there is a way, If you can't already tell by the sound. If you have mpe, the piping from the muffler to the tip would not have a valve in the middle. When you turn your engine on, there should be smoke coming out of both of the tips. The non m mufflers have a valve that opens only when the car is up to a certain rpm, I forget what is the read on the rpm. So in idol only the left tip pushes smoke out.
Appreciate 1