mikemac

iTrader: (3)

Would it make any difference if I swapped out my standard downpipe for a Sports Cat downpipe, leaving the rest standard (apart from H&S backbox)? Im collecting all the bits gradually and was wondering if it would do any harm swapping it out? I have an 04 STI.

Thanks

bob r

iTrader: (46)

The sports cat is free-er flowing than your current standard cat therefore the car should be mapped once it is fitted. You are best fitting the full system in one go then remap..

ps. your b/b will make little difference

dunx

iTrader: (3)

Your ecu may throw a CEL, mine did !

Once fitted you will notice an improvement in throttle response, I did and it did feel a little quicker...

But once re-mapped it went from 265 to 340 bhp NICE !

dunx

mikemac

iTrader: (3)

Thanks guys.

Black Tiger

sorry rather than starting a new post can i just add to this, about remaps? im willing to do the same, adding a sport cat downpipe and also a centre section to my ninja back box (leaving main centre cat standard) cant afford a remap yet, so as long as no lights pop up can it wait for a while or is it a must do?, i know i wont get the full benefit til the remap is complete

thanks

mikemac

iTrader: (3)

dunx, when you fitted the sports cat downpipe was the cel light the only issue? What car do you have?

Has anyone else fitted just a sportscat downpipe leaving the rest standard? Any feedback would be great. I still cant afford 600 notes on a remap but would like to fit the sportscat as long as it will cause no damage.....

daz1968

iTrader: (13)

i fitted a decat uppipe and ppp sportcat and decat centre to a newage wrx 03 reg and have ppp map about 6 months on and still no cel only cel i have ever had was when i changed the fuel pump for a walbro and that was only cause i ran it with pump disconnected to release pressure from system