bcknighty

iTrader: (1)

Wasnt sure if the PPP for WRX 07 is cat back system or just back box?

I Assume if it is cat back, there is only second cat after the DP left as the OEM part.

can anyone confirm? thanks

greatgonzo

iTrader: (1)

I can only comment on the hawk sti, Of which the dp cat stays and the 2nd cat removed the car is replaced with straight through and back box.

bcknighty

iTrader: (1)

interesting. I had in my mind that the second cat stays but the centre section and BB replaced.

anyone else?

greatgonzo

iTrader: (1)

When you say centre section do you mean the resonated piece?

bcknighty

iTrader: (1)

Yes. I believe on the 07 hawkeye there is DP(with cat), cat section, centre section (resonated section) and BB. I might be wrong but thats my understanding. Think classics were just 3 piece.

Didnt know which bits were replaced with the PPP

greatgonzo

iTrader: (1)

On the sti the down pipe cat is regarded to be very free flowwing so this was left in and only the underbody cat removed. The resonated section is left in to make sure there is no intrusive cabin noise.

bcknighty

iTrader: (1)

I spoke to dealer today who stated that along with BB they change the short section straight after the DP, which he reckoned didnt have a cat in it anyway.

Try prodrive tomorrow.....

TonyBurns

iTrader: (3)

Which dealer did you speak to?

Tony

bcknighty

iTrader: (1)

one up in darlington where they fitted the ppp. He was the mechanic. if hes wrong, bit worrying isn't it

greatgonzo

iTrader: (1)

Hes right, that's what i have been trying to tell you

pinkypurkhardt

iTrader: (9)

ppp was a turbo back system they fitted a sports cat(down pipe) removed the second cat (small section after dp) and changed the back box

greatgonzo

iTrader: (1)

Not on the hawkeye mate, Down pipe cat has good flow so was not replaced only under-body cat (small one) and back box along with ECU flash/upgrade.

pinkypurkhardt

iTrader: (9)

my bad miss read it was an 07

bcknighty

iTrader: (1)

think i get what you mean greatgonzo. My only point was that dealer told me that the short section didnt have a cat in it. I only assume i miss heard him or he was confused.

Do you think there is much value in replacing the resonator section with a SS section over the OEM part?