[Derrickluo]

I am considering getting a modified exhaust but I dont know what's available.

[london_v]

Originally Posted by Derrickluo

I am considering getting a modified exhaust but I dont know what's available.

We're all in the same boat! Hopefully some options will become available soon.

[Spoonhead]

Originally Posted by london_v

We're all in the same boat! Hopefully some options will become available soon.

I’ve only seen this.

https://shop.rossiters.co.uk/sports-...g01-8965-p.asp

[london_v]

Originally Posted by Spoonhead

I've only seen this.

https://shop.rossiters.co.uk/sports-...g01-8965-p.asp

Tempting. Would want to hear how much this improves the sound by. My concern is whether installing the downpipe without changing the OPF is worth it.

Just heard from ac schnitzer they are expecting to release an OPF-compatible silencer for the 40i model in the spring with testing underway with a 140i, 240i and 540i.

[SROC3]

Hit up Mike from BPM Sport - he's done remote tuning forever and is very good at it. I personally have his tune in my X3. love it.

[ShaunM40i]

Originally Posted by Spoonhead

Has anyone had their M40i tuned or thinking about having it done? A couple of places appear to be offering to do so, and I've emailed them to enquire especially as mine is a 2019 model.

AC Schnitzer have said they have one in the works for about 400HP, and should be ready soon.

https://www.celtictuning.co.uk/servi...e-1#t3-content

https://www.gadtuning.co.uk

Here's the graph from Celtic. EDIT: Just noticed the graph is for the M240i, even though the link was from the X3 M40i page.

Do any of you guys have experience of either?

AC Schnitzer have now released there piggy back tune. As you say it 400HP, but it’s £3500 quid. You do get a proper warranty though that runs alongside manufacturers. Still can’t quite see why it’s so much money. They also said they are releasing an exhaust and additional aero parts soon.

[X5MSD]

I don't think bmw warranty runs alongside ACS anymore
Have a look at pcw exhaust mods
He has a insta page

[jlcrompton]

Booked in for a tune with Celtic and a gear box tune had no problems with my van so will get it done but at a price of £620 inc vat its not cheap.
What you guys think of the stats

[SO8]

Originally Posted by jlcrompton

Booked in for a tune with Celtic and a gear box tune had no problems with my van so will get it done but at a price of £620 inc vat its not cheap.
What you guys think of the stats

Any updates on this and other options ?

[SO8]

Originally Posted by X5MSD

I don't think bmw warranty runs alongside ACS anymore
Have a look at pcw exhaust mods
He has a insta page

It runs as a separate warranty as opposed to 'alongside' but is for £10K max per claim on an M40i.

I think a gearbox, as an example, is a tad more than that though !!

[X5MSD]

Originally Posted by SO8

It runs as a separate warranty as opposed to 'alongside' but is for £10K max per claim on an M40i.

I think a gearbox, as an example, is a tad more than that though !!

Wow 10k for a gearbox
Ouch

[SO8]

Originally Posted by X5MSD

Wow 10k for a gearbox
Ouch

I think it is more like £15K !!

I am not certain but am unsure the £10K warranty limit would cover something if the worst happened ! I am pretty sure the ACS tuning box - as it alters injector duration as opposed to fuel rail pressure - is a better, if more expensive, option ... and I fancy 400hp ... but it is going to have to wait for now as £3400 is not sitting waiting given my insurer are not willing to accept any modifications ! (BMW themselves).

[X3M40i_Nev]

Have heard only good things about Celtic Tuning, at least from my many hours spent on Audisport.net