Exhaust opinions needed

Himi · Post by **Himi** » Mon Oct 08, 2018 7:44 pm

Hey,

So I have a 20i currently with a mid box delete. After some lucky browsing online I managed to find a 35is diffuser online for not that much money... now it's arrived and itching to be put on my car. Question is what exhaust option do I go for? I was looking at getting an BMW 35i exhaust but they are expensive leaving with the below in mind:

1) keep the mid box delete and have a box box delete and tips

2) get the mid box put back in and get a back box delete n tips

3) keep mid box delete and ask for a custom back box.

Any other ideas? I'm open to them. Not sure about losing back pressure etc on the engine and even after hours of online searching I'm still confused...Any help will be greatly appriciated!

ZedConvert · Post by **ZedConvert** » Mon Oct 08, 2018 8:12 pm

I’ll be watching this thread intently, got a 20i, wanting a nice subtle growl... nothing much and no droning.

@Himi- where are you based?

Smartbear · Post by **Smartbear** » Mon Oct 08, 2018 8:36 pm

Hi, with a turbo engine you want as little back pressure as possible which is different to what’s wanted on a normally aspirated engine

Rob

Himi · Post by **Himi** » Mon Oct 08, 2018 9:03 pm

ZedConvert wrote: ↑Mon Oct 08, 2018 8:12 pm I’ll be watching this thread intently, got a 20i, wanting a nice subtle growl... nothing much and no droning.

@Himi- where are you based?

Us 2.0i'ers need help! Haha

I'm based in Romford, Essex

Himi · Post by **Himi** » Mon Oct 08, 2018 9:04 pm

Smartbear wrote: ↑Mon Oct 08, 2018 8:36 pm Hi, with a turbo engine you want as little back pressure as possible which is different to what’s wanted on a normally aspirated engine
Rob

You Rob... have given me a few more hours of online researching. That's good to know.

I'm worried about sound levels too. I do 18k miles a year minimum and am always meeting clients.

R60BBA · Post by **R60BBA** » Mon Oct 08, 2018 9:09 pm

Get a Supersprint

Himi · Post by **Himi** » Mon Oct 08, 2018 9:30 pm

R60BBA wrote: ↑Mon Oct 08, 2018 9:09 pm Get a Supersprint

The price scares me. I've been quoted £350 for backbox n tips from an exhaust place with What seems to be good reviews online.

R60BBA · Post by **R60BBA** » Mon Oct 08, 2018 10:21 pm

Himi wrote: ↑Mon Oct 08, 2018 9:30 pm
R60BBA wrote: ↑Mon Oct 08, 2018 9:09 pm Get a Supersprint
The price scares me. I've been quoted £350 for backbox n tips from an exhaust place with What seems to be good reviews online.

I did it, had no regrets.

But if you’re on a budget you’re probably better off going to a fabricators.

Good luck

Himi · Post by **Himi** » Tue Oct 09, 2018 12:33 pm

R60BBA wrote: ↑Mon Oct 08, 2018 10:21 pm
Himi wrote: ↑Mon Oct 08, 2018 9:30 pm
R60BBA wrote: ↑Mon Oct 08, 2018 9:09 pm Get a Supersprint
The price scares me. I've been quoted £350 for backbox n tips from an exhaust place with What seems to be good reviews online.
I did it, had no regrets.

But if you’re on a budget you’re probably better off going to a fabricators.

Good luck

Thanks mate. Planning on getting booked in later this week... I'll feedback!

Himi · Post by **Himi** » Wed Oct 10, 2018 9:47 pm

So I went in today and spoke to one of the fabricators. We decided it was best to put my mid box back in and delete my backbox as it will A) the cheaper option and B) Be a brilliant noise without being OTT.

I'll upload the results... the tips are on the larger side but I felt the smaller tips looked abit lost.

I really do recommend the box delete.

ZedConvert · Post by **ZedConvert** » Wed Oct 10, 2018 9:57 pm

Himi, waiting in anticipation! What was the cost in the end too...?

Himi · Post by **Himi** » Wed Oct 10, 2018 10:02 pm

Just realised the pictures came out shocking but here you go for idea:

Himi · Post by **Himi** » Wed Oct 10, 2018 10:07 pm

ZedConvert wrote: ↑Wed Oct 10, 2018 9:57 pm Himi, waiting in anticipation! What was the cost in the end too...?

Haha sorry mate, uploaded now! The exhaust was £350 but I sourced the diffuser myself!

Busterboo · Post by **Busterboo** » Thu Oct 11, 2018 12:46 am

Apart from anything else, the rear end looks balanced now (and better for deleting the 'Z4').

p.s. Sorry your aerial's broken, though.

Himi · Post by **Himi** » Thu Oct 11, 2018 6:38 am

Busterboo wrote: ↑Thu Oct 11, 2018 12:46 am Apart from anything else, the rear end looks balanced now (and better for deleting the 'Z4').

p.s. Sorry your aerial's broken, though.

Haha Thankyou

I know, I know, it's terrible but as you can see it's slowly growing back.

Z4-forum.com

Z4-forum.com