X1 modification thread...

[Randy7fx]

Originally Posted by wantm135i

just ordered jb4 and flex fuel wires and bms intake and oil cooler valve and buying wagner intercooler yea all on the way

I can't wait to see/hear about the results of all of this. Here is a stupid question.... do you plan on removing everything when you have to bring it to the dealer? Or will you have an indy service it?

[paradoxical3]

Originally Posted by Randy7fx

I can't wait to see/hear about the results of all of this. Here is a stupid question.... do you plan on removing everything when you have to bring it to the dealer? Or will you have an indy service it?

Modding this car is what got me into DIY. Before the X1 I had never done any kind of auto work. Now I'm installing intercoolers, swapping spark plugs, brake pad changes, etc.

It's not rocket science and it saves me tons of hassle and money. It's liberating not having to rely on a dealer for everything, and a lot safer when you start modding.

[wantm135i]

yea i have a friend who works at bmw to do all the work after hours.

Para why did you change the spark plugs so soon?
Also did you get the spark plugs 1 stage colder because of the added horse power they say for every 60 hp to 100 hp should drop 1 stage or heat range.

[paradoxical3]

We have the same engines as the 135 and 335, so I spent a ton of time seeing what the highest performance guys do. The recommendation is to change every 10-15k if you are running a heavy e85 blend and a lot of boost, and you're exactly right - I use NGK 5992 plugs which are one heat range colder. I actually got rid of the stock plugs at 3k to switch over.

[jm60011]

Hey Para,

Are you running ISO software on the JB4? Do you think it would be fine running it on an otherwise stock car?

[si glenno]

Hello from Indonesia

E84 Silber Grau

Im currently using the black matte 5 spoke wheels. Tried using an M5 replica. Which wheels do you guys think suits better?

[wantm135i]

looks real good with m5 rims

[si glenno]

Originally Posted by wantm135i

looks real good with m5 rims

M5 + 1

Thanks for the input

I'm thinking about getting a sport exhaust. Do you know any good preference? Checked some nice brands like Akrapovic, Eisenmann, Supresprint etc. and none of them produce any for E84 just yet CMIIW.

Although, remus does. But I'm not very sure about the sound.

[wantm135i]

Same I Want An Exhaust Also With A Dull Out

[jm60011]

Just installed JB4 over the weekend... Running the ISO firmware Map 5 (with 94 Octane) with an otherwise stock X1. This thing hauls now that is for sure!! It is weird though, I can totally understand that it can be underwhelming at times but if your in the right gear and once you do a few WOT pulls this thing really shines!! Pretty awesome for a relatively cheap mod!

[Fedie]

So I got around to get the down pipe and intake installed, I didn't bother installing the charge pip. JB4 had wrong harness, go figure, so I'm waiting on replacement. The dp and intake combo makes for an awesome sound, I'll post a video soon.

[wantm135i]

hey guys if there is anybody in virginia near richmond and know how to hook up the jb4, will pay for your help.

[Dmitry83]

Some back half-sphere tint and Michelin Super Sport upgrade:







2002 "Turbo" badge for the stock "X-Drive 20i" replacement and M-footrest are on the way:

[Fedie]

JB4 it's in, it's really quick now. Hopefully I can hit the drag strip and get me some race gas.

[EdgeCrusher]

Did the Alpina flash.., man its a new car practically! i highly recommend doing it!

[cwickberg]

Originally Posted by EdgeCrusher

Did the Alpina flash.., man its a new car practically! i highly recommend doing it!

Yeah, Been loving mine for the past few months...Increased mpg about 1 mpg average driving around town, no real increase on highway.

[wantm135i]

ok good news bmw x1 35i m sport in shop being installed ar down pipe, er inter cooler and er charge pipe, new spark plugs 1 stage colder, jb4 tuner and flex fuel wires, oil catch can, oil by pass, and bms air intake.

[paradoxical3]

The M3 sway bar fits for the rear. So do subframe bushings.

[wantm135i]

The M3 sway bar fits for the rear. So do subframe bushings.

para - what! tell me more! lol so you got the m3 sway bar on, so how does it drive or feel. please let me know exact numbers or reference is it e90 e91 e92 m3 sway and same for bushings any numbers. have you been to the track yet. cant wait to hear. thanks

[Porkay M]

Originally Posted by wantm135i

ok good news bmw x1 35i m sport in shop being installed ar down pipe, er inter cooler and er charge pipe, new spark plugs 1 stage colder, jb4 tuner and flex fuel wires, oil catch can, oil by pass, and bms air intake.

Where did u buy the AR dp from? Plan on ordering them in the next few weeks and since it's at the shop there are no fitment issues?

[Bamsterman68]

Well....I did a rear muffler delete on my N20 today. Pics and vids to follow. Stay tuned.

[wantm135i]

ar downpipe from alphamotorsports.com there in denver co. fit perfect no problems. but remember to buy a plug for the 3ed hole the first two holes are for sensors.