It gets better..... not!!!!!

[Knight Rider S4]

Cut a long story short having this rattle problem ,the only thing that i found that was lose was the intercooler which had come out of its mounts ,fixed that problem but the rattles still there , the noise now has become really loud and have found the problem i think 2000rpm and at say 1 bar the noise is at its loudest but when the turbo is sitting at 0.5 there is nothing ,i have this feeling that one of the baffles is gone in the middle box but is only rattling when the engine is under load ,does not make a sound when just reving the engine


Does this sound right??


Next question if this is the case i would probably look to put Stainless system on ,what should i be looking to do as in the CATs go or stay?
1993 Ur S4

And how will the performance be affected by doing this?

cheers in advance

[~Delta]

I'd say retain CATs, due to age of your car.

[Knight Rider S4]

Does having higher or lower back pressure affect the performane of the Turbo