Full catbacks

[redlineit]

Hey everyone! This is my first post here! I currently don't have a tC, but I will be trading in my car for an 08! I was just curious on how much more power is there if you get a full catback opposed to an axle back? Also, if I go the TRD muffler route, could I replace the restrictive exhaust parts after? I know the S-pipe is very restrictive and has a cat in it, could I replace this after if I do get a TRD muffler? Thanks!

-Chris

[dakid19]

to b honest if theres much of a diffrence but i just switched mine up i have the zpi s-pipe and exhaust n i love it

[redlineit]

So you have the zpi s pipe with the TRD muffler? I heard a megan s-pipe, megan mid-pipe and a TRD muffler, and it sounds so sick! I may have to do that! haha.

-Chris

[dakid19]

i had the trd muffler i just switched it over so now its just all ZPI thats what i meant to put

[ForBiddeN]

the zpi adds 12whp and if you get headers your looking around at a total of 24whp

[dakid19]

hotness now i gotta hurry up n get my header

[navylife59]

Quick correction....s-pipe does NOT have a cat. The OEM header has a pre-cat then a OEM wideband sensor. The s-pipe contains the OEM narrowband senor aka O2 sensor. The mid-pipe contains the OEM cat then the OEM resonator.

IMO the TRD exhaust is the best sounding on the factory exhaust. Be forewarned that if you change out the OEM header, you will get a totally different and loud sound out of the TRD. In fact, this is going to be true with anyone else's axle-backs.