Has anyone run this Manifold on a F4r compertition engine

[hissingsid]

http://www.ebay.co.uk/itm/RENAULT-C...A%2BFICS%2BUFI&otn=21&pmod=200554944360&ps=54
Has anyone tried one of these exhaust manifold on a clio, and would it give me the extra power to get me rally car from 228 bhp to 240 bhp ?

 

[Dan519]

most likely worse than standard

 

[Fred@BTM]

terrible terrible terrible quality

 

[hissingsid]

Ok thanks thought that maybe the answer.