2015 BMW X5 35i | MHD STAGE 2 | CATLESS DOWNPIPE | Data and Pulls | 400+ HP

The performance mods used in this video are:
1. MHD Tuning
2. Catless Downpipe
The purpose of this video is to show the difference of my 2015 BMW X5 35i after tuning it with Stage 1, Stage 2.
Please let me know if you have any suggestions or questions about any data that you want to see.
0:00 Intro
1:33 Performance mods
2:24 MHD Multi Map
3:54 Stock a.k.a. Stage 0
4:25 Stage 1
5:25 Stage 2
6:18 IATs Evaluation
6:46 Conclusion
Links to mods:
MHD Tuning - mhdtuning.com/products/mhd-su...

[@mikemole6701]

Getting an X5 35i because of you, great video

[@fast-life]

they are good cars. thank you for your comment!

[@ismaelramos8687]

I have a 2015 X1 35i which is even lighter than the X5 and has the same N55 engine!

[@justinherrera1700]

great video and sick car

[@fast-life]

thanks man!

[@Scotford_Maconochie]

I have a 2017 X5 xDrive35i with both M Performance exhaust and M Performance Power kit retrofitted at dealership. Also upgraded to a metal charge pipe as preventive measure, everything else is stock. I'm pushing now well over 300hp but certainly less than 400hp with 93 octane. Last pieces would be a cold air intake cone and maybe a high flow cat converter since I'm I don't want to go catless but high flow cats are expensive. The MPPK and MPE combo does indeed sound phenomenal!

[@1TakeX5]

Did you ever do the high flow catted downpipe? I have M performance exhaust and want to know what it would sound like.

[@zokizoran]

Really good video! I also have a 2015 bmw X5 but in xdrive35d (DIESEL), with an egr, dpf, etc delete and a malone stage 2 tune. Makes about 335hp and 545lb-ft. Took it to the drag strip. 0-60mph = similar around 5 seconds 1/4mile = 13.995 seconds With it being a diesel, all that torque really throws it down off the line, all four tires screech, but it starts to get lazy on the top end.

[@fast-life]

yep the diesel gives you a good feeling in the beginning, but doesn't have the same power in high speeds, while the gasoline type feels like it's going faster and faster and faster. Both are unique though.

[@zokizoran]

@@fast-life Update, added a performance intercooler, XHP transmission tune and performance springs. NEW 1/4mile time is 13.70 seconds!

[@Muronov]

Great video. I wish BMW made F15 with B58 engine, coz N55 performance is not what you expect from BMW.

[@fast-life]

Yeah, the B58 is premium when compared to N55. That is my new plan to get a BMW with B58 and do mods

[@Scotford_Maconochie]

I have an F15 with N55. I'm close to 320hp all stock for exception of a upgraded charge pipe and an M Performance exhaust.

[@mmhardky11112]

Great acceleration for 3.5 motor

[@mmhardky11112]

With this kind of speeding you can beat some 5.0 motors mercedes

[@sekouchill]

3.0*

[@fast-life]

it is a 3.0 engine. with an ewg turbo yes you can beat the 5.5 mercedes easily.

[@bravestocktrader]

Thanks for the info and review. The performance is a large improvement. Do you prefer the MHD over Bootmod3?

[@fast-life]

MHD has been reliable for me, so I never tried bm3. I cannot say it is better or worse. I know people that are happy with bm3, but personally I don’t have any experience with that.

[@bravestocktrader]

Thank you for the reply

[@carmaniac13]

Nice video! Are you happy with the RVG DP? How was the fitment? Did you need to buy anything else for the installation (gaskets, V bands, etc)? I was looking at RVG's high-flow catted DP for my F15 35i but haven't seen anyone that's used it before.

[@fast-life]

yes, the dp is really good, used it on my previously 535i and then on x5, never had an issue. The dp is just plug and play, no gaskets or v bands.

[@stevencerda9126]

I installed RVG’s high flow dp on my f15 with no issues. I reused the same clamp but replaced the gasket. The only reason I went with the high flow dp is because of the exhaust smell. The smell is still there, but a lot less than buddies catless dp on his f15. Just something to keep in mind.

[@coreman8087]

Hi... great video... I keep coming back to it... one question if I may. Did you have any cylinder timing correction on your data zap graph in any of the tests?. I have an 2016 x35i, MHD 2+ XHP Stage 3 , RON 95 fuel, VRSF INTERCOOLER CHARGE PIPE CATLESS DOWNPIPE BOOST PIPE, 1 grade colder spark plugs, runs great, but I keep getting cylinder timing correction , occasional single misfire on live monitoring... i went back to stage 2 and still got the cylinder timing correction. The car runs smoothly, but I don't know why correction occurs.

[@coreman8087]

​@stevencerda9126 I had a vrsf catless downpipe at first... the smell was strong, and eventually, my wife stopped riding with me in the car, so I changed to rvg Highflow downpipe, the smell is considerably less, and only noticeaafter a drag pull or some rough riding, but the sound is less unfortunately 😊.

[@Me-mw6un]

Nice. How much WHP is on stage 2? I got a b58 Stage 2.5. Definitely fun car. The Jump in power from stock is night and day

[@fast-life]

not sure about WHP, would have to take it to a dyno. Always been curious about that

[@johnmbrown7515]

Are you still friends with the neighbours? BTW, noice Rosary beads! Gonna try the downpipe on my 2015 X5 3.5.

[@fast-life]

they say Hi in the morning but deep down they hate me haha.. the downpipe and muffler delete made this car a roaring beast

[@SnarkyBullet]

thats crazy, my f26 x4m40i does 0-60 in 3.5 stage 2 catless dp no intercooler

[@fast-life]

different engine

[@peterhajj2107]

Is this engine reliable? And it's more reliable on the f10 than the f15 ?

[@boosted6ers]

Did you upgrade the fueling on this? B58 hpfp and better lpfp im pretty sure youll have better gains. Also how does this compare to bm 3 or a custom tune?

[@fast-life]

Didn’t go that far. With a custom tune you can pull some more hp out of the car but it will stress more the engine, transmission and especially the differential (had to put a new differential on my 7 series b58) Haven’t tried bm3, mhd been reliable so far so I haven’t tried the other side.

[@boosted6ers]

@@fast-lifeRespect. Did you have to upgrade the turbos and intercooler for stage 2?

[@fast-life]

@@boosted6ers not for stage 2 just downpipe and chargepipe. For stage 2 plus you need to change the intercooler or otherwise the high temperature will not give you the results you want

[@HaiderAli-ot2gg]

hey, i have a 2012 bmw x5 and the 0-60 has gone down from 5.2 seconds from last year to 6.2 today so I want to retune. I have catless dp and upgraded chargepipe. How much would stage 2 tune cost?

[@fast-life]

if you go with MHD it will cost around $550 to have all the stages with monitoring. If you want to go direct stage 2+ since you have a catless dp, I would say around $430 (again MHD)

[@Slow_C6]

have you done stage 2+ on your X5 and how fast is it from 0-60 ?

[@bigfwopl4873]

I have a stage 1 mhd tune on my x5 35i as well. Do you recommend jumping to stage 2 or stage 2+

[@fast-life]

for me 2+ is more fun because you put the catless downpipe, therefore more aggressive exhaust. But if you were on a location where you have to do emissions test, it would be a pain to put the catalytic converter back and remove it again. Keep in mind that for 2+ you would need to spend about $1k (intercooler - downpipe - map 2+)

[@rafaelrivz5171]

Do you need the m performance exhaust? I just want downpipe and charge pipe

[@mswaheds]

You don’t need MPE

[@fast-life]

No you don’t. Downpipe and charge pipe is all you need.

[@2Drezik]

pretty much any car lover in EU uses 98 octane petrol with perfomance cars ;)

[@fast-life]

true

[@NeonFluXz]

What's the mpg with stage 2?

[@fast-life]

when you floor it you see the difference, I think is the same when you drive it slow (don't have the numbers with me since the car is in my home country). Imo it is worth the less mpg for the increase in power.

[@inorisum9906]

What's your fuel consumption on the highway at higher speeds?

[@fast-life]

not sure about mpg but it was about 8-9 liters/100km

[@IfLooksCouldVamp]

i really want an suv so badly dude i got a baby now & i have dogs so i need the extra room w style & power the X5 or the V8 jeep is the way to go

[@fast-life]

I would choose the x5 between the two (six cylinder not v8), I have tried the jeep and for me the x5 is better. I would stay away from the v8 bmw though due to too many problems in the long run. I had a friend with v8 bmw n63tu engine (2014) in which the valve stems went bad around 50k miles, and I think bmw quoted him 3-4k to do the job. On the other hand I never had a problem with the i6 n55 engine. At some point around 100k miles you would have to replace the water pump (had to do it on my 535i and x5 35i) but that is a common service for the n55 engine. For a jeep I cannot give you any advice since I never had one, I have driven a couple but for me the interior quality of the German cars beats that of the American anytime. If I were you I would test drive both and see which one you like.

[@IfLooksCouldVamp]

@@fast-life say less so time to look into the i6 models im reallyy grinding this year for an x5 i love the big body suvs

[@gsxmafia4579]

@@IfLooksCouldVamp if you haven’t already bought one. Go for the x5 2016 and newer. I got a 2015 but don’t got some of the nice tech upgrades. Nor is mine a m Bought what was available

[@IfLooksCouldVamp]

@@gsxmafia4579 say less thats the right move

[@gsxmafia4579]

@@IfLooksCouldVamp if you can get m sport you’ll love it. Tho the non m are fun too. Gotta drop off the kids in speed

[@michaelpietri9937]

Get a muffler delete trust it sounds crazy

[@fast-life]

already did that, car is a beast.

[@caughtoncamera2229]

Link to downpipe please,looks great

[@fast-life]

Here you go: rvgperformance.com/product/catless-downpipe-4-bmw-n55-f10-535i-640i-f15-x5-f16-x6/

[@Scotford_Maconochie]

With 5.6sec with Stage 1 you're already in B58 territory

[@fast-life]

I think B58 is in a different territory, but it was nice to see such a big car moving fast.

[@ismaeldah6512]

If I remember correctly, all B58 equipped cars be it SAV or sedan clear 0-60 in about 5 seconds or less

[@fast-life]

@@ismaeldah6512 I doubt it for the SUV due to extra weight, if you tube it then yeah it should be less than 5 sec with stage 1 imo

[@ismaeldah6512]

@@fast-life you are probably right. It is closer to 5 seconds than you think. You should check this link though: kzbin.info/www/bejne/a2S8aJtolrCFfdU

[@bigboycombo6342]

My X5 is doing 4.14 0-60 before my Heatsync re-tune. I also have a JB4 piggyback and will be adding Water-Meth and Stage 2 turbos.

[@BMWX1M]

Youre shifting way to early. I had a F16 stage 2 by dmetuning. No bolt ons and i was able to get 4.6 seconds on my 0-60 with launch control

[@fast-life]

I think you lose boost if you shift past 6k rpm

[@rafaelgarcia6283]

Mine came with the performance kit from bmw so puts me on 400 / 400 is that equivalent to a stage 1 or 2?

[@ismaeldah6512]

Performance kit bumps the power to 330hp and 335 tq. Realistically speaking, it's closer to 350 for both hp and tq though since the power figures are slightly underrated.

[@buxy2481]

Not tryna say nun but the x4 35i is ugly but fast wit a 0-60 in 5.7 seconds stock no mods no nothing imagine when tuned

[@fast-life]

that's not bad