Interest in Supersprint V1 & V2 headers

[DropTopKingM3]

No. That’s weak sauce 🤪

Boom!

[Epoustouflant]

Looks like ECS is having a sale on select supersprint products. Will these be the group buy prices? Search SiteSearch e46 m3 supersprint - Page 1 - ECS Tuning

No. That’s weak sauce 🤪

[DropTopKingM3]

Looks like ECS is having a sale on select supersprint products. Will these be the group buy prices? Search SiteSearch e46 m3 supersprint - Page 1 - ECS Tuning

[Sid_E46]

Will the oversized 2.5 SuperSprint Section 2 (resonated) be included in this GB?

Yep

[binary]

Will the oversized 2.5 SuperSprint Section 2 (resonated) be included in this GB?

[keljos]

What's a connex?

https://euroconnex.co/pages/how-a-connex-works

[Circa Surviven]

No need for a list. It will be hosted on the Connex.

What's a connex?

[Singh]

Yes, and if you're not doing the cams/airbox thing you won't be any worse off. If you do go that route, you can always do the oversized section 2 later.

Got it, thank you, sir!

[ASAed330]

Ya, I've seen three examples where both 200 and 400 cell MF ceramic cats were blown out on custom section 1s. HJS/OE style metallic cats are very durable and capable of large power gains over stock while not making the car miserable to drive.

Another forum member posted their full catted SS setup with airbox on 91 - https://nam3forum.com/forums/forum/m...r-yuge-numbers . It made 58 whp and 22 ft-lbs more than stock, even the euro setup was impressive.

I have destroyed 2x 200 cell MF ceramic cats in the past with my CPI section 1 with track use. After the second failure, I went to catless in section 1. The HJS cat in the section 1 from SS would definitely be the best cat to use for durability.

[Epoustouflant]

Is there a list? If not can we start one?

I'm in for V1 stepped headers alone.

No need for a list. It will be hosted on the Connex.

[ASAed330]

Oh sorry, I missed the conversation on the last page. Would be interesting to see how they do it, and would they leave the bungs in place. it'd still be a catless product, so not sure how'd it be available through group buy per what Matt said about no catless products.

That said, I don't understand why ECS will sell the catless sect 1 (can buy it on ebay from ECS too), but it wouldn't be included in the group buy.

The legal/emmission thing doesn't make sense as, technically, ANY aftermarket exhaust (catless headers/sect 1) is ILLEGAL.

It is up on the SS website now. They have the post-O2 in place, so the resonator is larger. I would like to see if they can use a longer resonator for more volume reduction and get rid of the post-O2 bung. My car doesn't use the post-O2 with my tune.

https://www.supersprint.com/ww-en/bmw-e46-m3/supersprint-performance-sport-exhaust-bmw-e46-m3-635-mm-v1/front-exhaust-copy.aspx#!/

[Slideways]

I believe they're Magnaflow 200 cell cats, I'll need to verify next time I get the car up in the air. I wouldn't expect a noticeable power loss running those but I'll try Ian's suggestion and go with V1s and the 2.5" SS/HJS section 1.

Ya, I've seen three examples where both 200 and 400 cell MF ceramic cats were blown out on custom section 1s. HJS/OE style metallic cats are very durable and capable of large power gains over stock while not making the car miserable to drive.

Another forum member posted their full catted SS setup with airbox on 91 - https://nam3forum.com/forums/forum/m...r-yuge-numbers . It made 58 whp and 22 ft-lbs more than stock, even the euro setup was impressive.

[Sharocks]

Just a quick update: sorry about yesterday, I had emergencies at work.

I am submitting everything for final revision to ECS later today, and they have a meeting tomorrow morning with their team to sign off on every single item - including securing the best discount for the first 25 members that would participate. I would post the GB here first to thank you guys for the support in making this happen.

Is there a list? If not can we start one?

I'm in for V1 stepped headers alone.

[Jickel180]

What type/brand 200 cell cats are in the section 1?

I believe they're Magnaflow 200 cell cats, I'll need to verify next time I get the car up in the air. I wouldn't expect a noticeable power loss running those but I'll try Ian's suggestion and go with V1s and the 2.5" SS/HJS section 1.

[Epoustouflant]

You are correct, which is why I asked Alessandro to see if he can make some like their application for the E9x M3. He even pulled a new part number for this. However, since it is new, SS has been difficult to get ECS a cost on this part. Feel free to ping Supersprint to ask about 044022.

Although from what Matt has mentioned, it looks like it will be impossible to get non-catted Section 1 from SS.

I'm trying some workarounds for this. I'll need some time though!