4K Rattle?

[mikey 172]

The exhaust on my 172 cup is making a horrible rattle as the revs pass through 4000. I've heard people on about the 4k rattle and think it;s the problem. Does anyone know any more about it and which part I should change? cheers

Mike

 

[LegoHead]

centre section

 

[mikey 172]

nice one. thanks for your help.Any idea of costs etc? worth buying from renault?

 

[Fred@BTM]

cheaper to fit an aftermarket exhaust

 

[mikey 172]

would I need to get a cat back system then? I was on yozzasport just a min ago looking at exhausts and stuff. Is this a fairly common problem then with the RS?

 

[MarkCup]

I had the same rattle problem before the centre section started blowing (was cracked)...went for a K-tec stealth replacement in the end...highly recommended if you're after something not too loud, or with HUUUUUUGE tailpipes showing.

 

[mikey 172]

i'm split between a magnex and the ktr stealth. Not a big fan of massive tailpipes so it could be the stealth. Will fitting that solve the problem? Just had a look under the car and the exhaust is looking pretty crap. Probably designed to fall apart just after the 3 year point! lol

 

[MarkCup]

Exactly...designed to crumble into dust after 2 years/60k miles in my case.

Near £450 for a standard Renault one which'll go the same way in 2 more years...

Or £265 for the Stealth, with a lifetime warranty...no decision to make really.

 

[mikey 172]

True. Thanks for your help. Ill get on to ktr sometime soon about it. maybe payday ha ha

 

[Jones]

I had the same rattle problem before the centre section started blowing (was cracked)...went for a K-tec stealth replacement in the end...highly recommended if you're after something not too loud, or with HUUUUUUGE tailpipes showing.

How loud is it over standard?

 

[MarkCup]

Slightly louder...but not a great deal.

It has a nice subtle "burble" at tickover, and if you're driving normally on partial throttle at low revs you'd probably not be able to tell the difference from the roadside.

Get it over 5k rpm under full load though and it sounds fantastic...rasps away

 

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I lived with the uncurable 4k rattle for almost 2yrs.