Rep Power: 302

i have an LX sedan and i was wondering if i were to get the SI cat would the DC header for the SI fit in the engine bay?

has anyone done this yet?

 
Rep Power: 412

You mean you want to change the exhaust system from the LX to the Si(American EX)?

I don't see a problem with it. The only difference in the LX and EX is that the EX's cat is located further back inthe exhaust system.

 
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I kinda had the same question except I have an LX, but I want the gReddy Evo cat which is only made for the EX, and Im curious what other parts I would need to get to make it fit properly without doing any mods to the catback...................

 
Rep Power: 367

you'll need an EX header (stock or aftermarket), EX downpipe/cat convertor (stock or aftermarket) then you can use the EX cat-back exhaust.

if you want the DC header and EX downpipe/cat you'll need an EX cat back. or just take it to a shop and have them fit the dc header, ex downpipe/cat to the LX exhaust.

 
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Yea.... nothing left to say about this CapYoda said it perfectly....

You just need to do a ex header to exhaust swap

 
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Thanks guys! I'll have to make up my mind as to what I wanna do.

 
Rep Power: 302

thanks for all the info and input.

 
Rep Power: 302

one more question...it will fit both AT or MT rite?

 
Rep Power: 583

actually thats not all youll need. you will also need to change your stock LX sway bar to the EX/Si one. the LX sway bar is made to go over the LX pipe, not the EX/Si one.

people on here have done it tho, so its not a problem.

 
Rep Power: 0

i have done this exact thing...straight swap...ex manifold..ex cat...and ex front sway...i also have the ex midpipe installed gains are noticable...