I was wondering id we remove the fat thingy in our catback on the g35 coupe arent we going to lose torque or is it just me???? please im thinking about removing it and make it a str8 pipe back if someone could give me feedback i will appreciate it thank you

 

i'm pretty sure it's not such a good idea... you would lose negative back pressure.. especially since you have tp's ..

 

i have no idea what youre talking about.

are you talking about the resonator in the midpipe?

 

No bro after our Y pipe there is a catback that catback has a little fat thing it goes like ==={___}=== "=" <- pipe "{__}" <--fat thingy LOL i try to explain it the best way i could im trying to make it ======= str8 all the way to the end

 

uh....yes?

 

lol. I think after Y pipe there is a cat (catalitic converter) what you call a fat thing. That's why whatever is after the cat, is called a "catback". Catbacks usually include a resonator pipe, B pipe and a muffler. A resonator pipe is a little wider than the regular B piping but not as fat as the cat. Hi flow cats or straight pipes in place of cats should give you some power, but may not pass inspection, I'm not sure. Putting a straight pipe in place of a resonator, will improve sound but power gains will be minimal to none. Good luck.

 

Nope, The cats are before the Y-Pipe. he's talking about the resonator which is on the midpipe right after the Y-pipe. If you replace it with a straight pipe the car will be a little bit louder and you shouldnt lose any noticeable torque. Plenty of people have already done this.
-GP-

 

You are confusing yourself. A 'cat-back' means all the piping after the cats. You're talking about a 'Y-Back' On the G35 it goes as follows...

Headers
Cats
Y-Pipe
Mid-pipe (with resonator)
Muffler
Tips
-GP-

 

Oh, maybe, I think since we have dual exhaust some people might call the split a ypipe, but generally I thought the Y pipe is the one going from both headers to the cat, hence the Y. Most cars do not have dual exhausts so generally it can't be called a Y. Correct me again if I'm wrong.

 

lol thats what i thought he was talking about!

 

gdup35sedan is right

the y pipe is after the cats

theres two cats (hence the y pipe) that connect to the y pipe which turns it into a single pipe leading to the midpipe

 

The stock G35 exhaust is not a true dual exhaust. It only has dual tips. The Headers from each side of the block connect to a Cat on each side for a total of 2 headers and 2 cats. In order to make it into a single pipe, it needs a Y-pipe to bring the 2 sides together to match up to the mid-pipe and muffler. If it was true dual it would have an H or X pipe.
-GP-

 

DAMN YOU Cal! you beat me to it ya post *****!
-GP-

 

Oh, I see the picture now. Thanks.

 

haha gdup you explain things so much better than i do

ps - hurry up and get your wheels so we can do a photoshoot