Hi guys,

Basically, I have a rattle up front only on occasions. It sounds exhaust related as the block sounds fine and is pulling very strong with no oil loss.

I've read up on Cat-breakdowns, so I have narrowed it down to that.

I don't want to decat due to MOT issues. But if a change is to be made, an upgraded one would be my choice.

Currently I have the prodrive backbox.

What options do I have, exhaust-wise, which don't require remaps.

Adam

 

could be a heat shield ?

 

model? year? most people say you can have a cat back system without a remap, certainly true with the classic but not sure with a newage as i think there may be a cat in the mid section... but not 100% on it.

 

I thought this, but they all feel pretty sturdy?

 

My bad.

2005 WRX Blob.

There is a pre-cat (before turbo), then two cats after I think?

 

As above mentioned heat shield: the welds holding the heatshield on the up pipe break and it makes a hell of a rattle. Drove me mad until I welded the shield back to the pipe.. Can be done on the car from underneath. Check to see if the heat shield is loose on the up pipe fella.

 

Nice one. Thanks guys.

I'll get underneath and have a butchers!