hi folks, just a quickie! i have a 2003 wrx blobeye and wanted to know what sections of the exhaust are changed when a ppp is fitted? is it just the back box?
thanks.

 

Backbox and a 3rd cat delete pipe get fitted (between the DP and centre section) inside the original heat shielding. Looks like the 3rd cat is still in place from the outside but if you get under the car and open the shield you'll see it's mainly empty with a short section of straight through pipe.

Cheers,

Stewart.