two pipes at 2.5 each that connect to a 3 inch inlet resonator.

did you say when you remove the resonator i assume thats large cat in middle the some dash light will come on ? i was going to take off all 3 on my wifes car but i dont want it much louder

the resonator is the large can at the axle and the to tiny muffler looking ones before that are the cats.
and no lights

Dear Members,

I love talking about modifying the exhaust on the IS-F... I was suppose do mine last week...but ran out of time and leaving for vacation next week so it will have to go in 2 weeks...

I am just frustrated that the members whom did modify the exhaust DOES NOT POST A VIDEO!!!

I can't wait to hear it, I feel like a 4 year old crying for candy... lol

Please post a video!! Everyday I drive my car and I'm like``can't wait to do custom exhaust; can't wait to do custom exhaust`` and everyday I'm checking on this forum and you tube to see if someone posted there modified exhaust video..

So again please post a video for a poor little 29 year old...
LOL

Regards,

CL

wanna host my camera phone vid?

Youtube should host it.

ok tomorroow the cats are GOING bye bye.. i will have JAvyLSU do the video capture.

need a good shop to do this. the guy i know does awesome work but wont touch my cats.. so 5000 dollar fine. but want them gone

So take out the resonator, primary and secondary cats and no CEL lights. On my IS350 I did the LMS cat back exhaust which remove the secondary cats and left the primarys on, also which was an H pipe which would have thown the check engine light they claimed 22whp.

nah man.. im pretty sure if you remove the primary cats, without adding an 02 simulator, that a CEL will go on. i removed the secondary cats and the resonator after it. otherwise, all the piping is stock. i dont remember seeing an H or X pipe. i think the exhaust is a true dual until it gets to that resonator.

LMS.. does that stand for la brea motorsports? out here in the san fernando valley?

LMS = Luxury Motorsports aka Luxury Motorworks

ahh, the supercharger guys from .net. heh i remember now. thanks bud