Alunox Stainless Steel Rear system development for Esprit Turbo HCi

[MarkKassim]

Alunox are looking for a rear system (turbo back) from a HCi Turbo to use to develop a Stainless Steel direct replacement.

 

I know this is rare car but if anyone has one and is willing to let Alunox have it for a while, they

Will give a discount on the new system. They will also pay the postage each way.

If you can help with this you can hold of me or email

leon@alunox.co.uk    Or    richard@alunox.co.uk

 Thanks

Mark

[CarBuff]

Alunox should be aware that the '88 and '86 - '87 were slightly different specs.

'88 had the EBPV (exhaust back pressure valve) fitted to the left joint of the muffler in the picture. Many owners have eliminated it (I know JAE Parts sells a spacer).

[MarkKassim]

Thanks , I have updated Loen and he has taken that into account. Sections will be connected using V Bands alowing for options.

[MrDangerUS]

Mark,

FYI,

Stevens exhaust and the G exhaust are not similar, regardless of it's being a UK, ROW or Federal car.

There were some clearance problems on US cars, start from page 33 here  https://www.lotustalk.com/threads/penelope-pitstop-resurrection.335777/page-33

 

 

 

 

 

[MarkKassim]

Hi Just an update, Alunox now have a genuine exhaust for the HCI Esprit and can now supply the full system for federal cars in 

the US and Europe.

 

I will give an update when the someone orders one and we can see the final result 

Mark k

[MarkKassim]

Hi another update from Alunox, they now have the full system designed for HCI federal Esprit As well as the other full systems for G and Stevens cars . Here are some shots of the new HCI full system which is a 3” Direct replacement for the original.

 

The is built to the usual Alunox standard , Mandrel bends, purge welded and V bands etc. I can get full specs if needed.  

Alunox can now offer the full systems for the G, HCI and Stevens Esprit and are open to a mixed Group Buy. Could you give me some idea if you would have an interest in this and what model your car is and if it would be a manifold , rear system or full system. This would give us some idea of the group buy quantities and so we can then work on the prices.

Thanks

Mark

[MrDangerUS]

Mark,

Alunox header installation combined with a higher flowing turbo, 3.25" CAI and Micklewright racing hi-flow exhaust (NOT muffler, but just straight resonator) morphed my S4s into a Rocket Ship!

Tubular header delivers absolutely incredible results!

However, in the past,  the HCI version was somewhat troublesome... US cars are configured differently. 

Remember Jenna's problems?  https://www.lotustalk.com/threads/1995-s4-turbo-exhaust-upgrade.464140/#post-5912462

I hope, that this time all the issues were carefully investigated and addressed.

More food for thought here:  https://www.lotustalk.com/threads/alunox-header-installation.469196/#post-6149952

[GavinT]

I’d be interested to know pricing - 88MY Stevens USA Spec (same chassis as 87 HCI)

[CarBuff]

On 20/12/2023 at 12:14, MrDangerUS said:

US cars are configured differently. 

Shape/specs differ, even among model years...

'86 - '87 HCI and '88 Bosch cars are different, for sure.

[MarkKassim]

Just an update , the Federal system is now on Group Buy under Site Sponsors

https://forums.thelotusforums.com/topic/122093-alunox-combined-product-group-buy-for-giugiaro-stevens-esprit-turbo/#comment-1041595