Bolt On Exhaust Silencer For Exige?

[C1RVY]

I need to locate someone in the East Midlands that can make me a removable bolt on silencer that will enable me to safely do trackdays.

 

My Exige has the Lotus Stage 3 exhaust with the trumpet outlet pipe, so I need something making bespoke - it's not going to be an easy fix.

 

Any recommendations??

[chris_h]

What bhp are you running and what track day noise limit have you broken/where do you want to go?

 

You might be better getting a new back box (lotus one isn't great anyway).

 

Quite a few people have a problem with the supercharger induction noise if they have changed the airbox rather than the exhaust (or a combination of both).

 

It won't be easy to fit/make a supertrap type device to an Exige s exaust (plus I undertand they create quite a bit of back pressure).

[DeanB]

P4N lotus had an exhaust made for his Evora at a place in Watnall a couple of weeks back. If you searcb you will find the thread. I guess they would be worth a visit as they are local.

[C1RVY]

Cheers for the input guys.

 

The circuit is Donington, & the driveby noise limit is 98db. I've been borderline before with my old set up, but now I have a new Stage 3 ( it's a long story ) & I'm worried I'm going to be too loud.

 

I've tried the place in Watnall, & they can't help.

 

What I need, is someone who can manufacture a slide in/bolt on additional silencer that I can remove for road use, without too much fuss or hassle. My exit pipe is oval, slightly recessed & a trumpet type shape, so I know it's not straightforward, but I'm surprised there's not someone out there that could come up with something to sort it.

 

Cheers again for the input.

[M@r]{]

What about this. You could then have an additional silencer made that you bolt on and off where the tailpipe would normally go?

 

http://www.ebay.co.uk/itm/251272132634?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

[G]

I think you will struggle if supercharged. I am running a 2bular 8x24 exhaust (jims original quiet exhaust) and I tripped the donny meters at 98.3db

I have changed my cup airbox back to standard and will be looking for one of 2bulars new offerings for track. See here, Jim has also manufactured a twin setup so you can install an additional box for track.

 

http://www.2bular.co.uk/index.php?option=com_virtuemart&page=shop.browse&category_id=12&Itemid=80&vmcchk=1&Itemid=80

 

 

[chris_h]

Have you got the original (standard) exhaust?

 

If you have, why don't you just swap that on for the track day. Once you've done it a couple of times its only 20-30 mins to swap them.

[scatty]

I think I'd phone Jim up at 2bular....

 

I've got the same 8x24 2bular as G, and it's as quite as a mouse on my n/a. It made 89db at cadwell....

 

[C1RVY]

Thanks very much for the input guys.

 

Spoke to Jim at 2Bular, he doesn't currently have a fix for this, although he is looking at it. I'll keep researching & feedback, some good suggestions above though, thanks.

 

I'm going to do a noise test at the weekend, & even try a driveby. Jonny at BaT has given me some tips on how best to replicate the Donny set up. I feel in the past, it was my SC whine that took me close to the limit ( or even over if I kept my foot in past the meter ), my concern now though is that with a louder exhaust noise, the two together will just be too much!

 

That said, I've found a guy in Stafford at AAS ltd who has all the details of my car & is fairly convinced he can help me. Fingers crossed, I'm going to see him Monday.

 

Cheers guys.