As I did'nt find a topic related to my problem I started a new one.

My car is a standard Seicento 1108 with a 38mm throttlebody and a Novitec exhaust (1 pipe left and right).
Now on the higher speeds / rpms and while accelerating the car produces a low noise.
BUt to loud in my opinion.
As the car is going to be turbo'd it will the better with the turbo on as that takes away a lot of noise.
But in the meanwhile I have to fix this.

Is there a way to soundproof the car?

I read I can soundrpoof the boot + wheelarches to silence the exhasut sounds.

But what material to use?
I found some special stuff but also read about stuf you put underneath the floor of a house.

Also how to soundproof against engine noise?

I hope some people here have done this before.

I don't know that exhaust. Check if it's fouling on anything.

Soundproofing is heavy and fairly expensive and doesn't really address the issue.

Is there a pre-silencer in your system? If not, fitting something like a "cherry-bomb" would probably do the job.

any pictures of your exhaust system , i had a novitec "one on each side" system that was modefied to fit on my old cinq 75 and never saw anything simular

ear plugs? motorcycle shops sell bags of 100pairs for about £5 lol

I already use earplugs but that makes your ears very sensitiva afterwards.
So not the best option.

I do not have a pictue but the other cinq novitec exhaust has the same design.
The marked area is a pre/silencer.
I do hear something it it when I toss it around, I don't think it should do that haha.



But were to get a replacement. There not made anymore.

Try and find out where its either banging or loose inside. There are plenty of suitable replacements for fubared sections (Jetex for example) or cans, and anyone with a welder can stick them in.

Novitec is build by Jetex if I'm correct,
Did'nt think about that yet.

Something like this?
http://stores.ebay.co.uk/Exhaust-Pa...76677018&_sid=131329888&_trksid=p4634.c0.m322
http://stores.ebay.co.uk/Exhaust-Parts-UK/Classic-Exhaust-Box-Round-/_i.html?_fsub=2097365018&_sid=131329888&_trksid=p4634.c0.m322

No the part I need is custom build I think.

Last night I was out for a spin to keep the battery charged and noticed that engine noise is worse the the exhaust.

So is there something that I can do about that?

is your exhaust system like this??

https://www.fiatforum.com/garage_vehicle.php?do=view_vehicle&id=3940

@Craigk: Yes, I have that exhaust.

nice your the only other person iv seen with one, i found the one i had fitted to my old cinq a lilltle bit too noisy, but i did have it mated to a punto 75 manifold and it had been modefied to fit a cinq as they are made for the sei