exhaust whistle

[Jordan537]

Happy new year to everybody

i got a scorpion exhaust fitted and as soon as it was fitted, when i go above 5K RPM it whistles, sounds like its coming from under passenger area,

it still has a cat and i want to get it decatted, would this solve it ?

Regards.

 

[welshname]

The whistle is more than likely a blow.

I know @Jon.G had the same issue with his scorpion.

 

[Addicted]

It will be the cat to exhaust joint, 100%.

If it's still using the olive joint, get your cat sleeved and get rid of that nasty joint.

Had mine done by Fred when I had the Yozza, stopped the whistling completely :smile:

 

[James28]

It will be the cat to exhaust joint, 100%.

If it's still using the olive joint, get your cat sleeved and get rid of that nasty joint.

Had mine done by Fred when I had the Yozza, stopped the whistling completely [emoji2]

This. It'll be the olive joint.

 

[fivepointnine]

new OEM renault clamp and a bead of black silicone around my olive joint cured mine.

 

[Jordan537]

Thankyou. I am going to purchase a de-cat pipe and get that fitted, once sealed it will cure my problem

 

[MRBILLYUK]

Thankyou. I am going to purchase a de-cat pipe and get that fitted, once sealed it will cure my problem :smile:

First of all . The Decat will add Zero difference to performance . Secondly , the Decat will have the same oilve joint as your Cat and will most likely leak again in time , causing it to blow or whistle again . So you'll be back to square one .

 

[fivepointnine]

Decat will add a bit of performance if there is a remap, plus they sound good. but yeah you will eventually have to replace the clamp as it goes through heat cycles and bends.

 

[Jordan537]

The car has been remapped.

so you say eventually i will be back to square one having replaced the cat because of the olive joint? what do i put in place of the olive joint?

 

[MRBILLYUK]

You might see a couple of bhp with it remapped . You'll have more noise for sure . You have 2 options , keep replacing the clamp/ seal it everytime it statrs blowing , or get it sleeved like @Addicted said . If you do a search for sleeved cat you'll find out what it entails .