3" stainless flex tube collapsed ?

[Wrath]

Hi

Had som issues this summer with my new exhaust, and when rebuilding my chassis of the car I found this inside the flex tube, looks like it has collapsed, it´s supposed to be 3" and the outer shape is intact but the inside the hole in the middle is like 2cm where it suppose to be 7,6cm.

Have had problem with cracked DP flange, exhaust manifold that unscrews itself, exhaust leak around the WG and also a stumble idle problem with stupid emission result, maybe it´s because of all the back pressure I don´t know. But this is not how it should look like. The idle problem I isolated to some burned exhaust valve but this doesn't help if it looks like that I guess...

The flextube is behind my 3" catalyst race converter and then it goes a Y pipe to 2x2,25" exhaust piping.








The inside looks collapsed but not the outside




View from the rear (Y section)



Any ideas?

[SteveH]

Not seen that before. A major restriction for sure!

The flexi pipe I use has a stainless spiral of pressed metal inside which creates the seal and would stop the pipe from distorting like that. Get yourself something from another manufacturer and take that back to show the supplier you got it from.

[Wrath]

Have found one at Merlinmotorsport that has this ILOC or what its called. Think i'll try that one... They had them in 3" (76mm) and 4" long (100mm)