LS1TECH - Camaro and Firebird Forum Discussion

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-   Generation III External Engine (https://ls1tech.com/forums/generation-iii-external-engine-6/)
-   -   Headers/Catted Y/Magnaflow...I'm going in. (https://ls1tech.com/forums/generation-iii-external-engine/1183507-headers-catted-y-magnaflow-im-going.html)

-Q- Sep 26, 2009 02:01 PM

Headers/Catted Y/Magnaflow...I'm going in.
 
It begins. I've been kind of dreading this install, but I'm going all in today. Have a full length exhaust to install...Pacesetter LTs, TSP Catted Y, and Magnaflow cat-back. I've got the rear tires on ramps, and the front end on jackstands...it's way up in the freaking air. Looks like plenty of room underneath.

Debating where to start...stock catback out, then Y, cats, then manifolds?

jmill96Z Sep 26, 2009 02:04 PM

Yeah, take out the catback first, then Y, then manifolds. Then install in reverse order. Sounds easy doesn't it? :D

-Q- Sep 26, 2009 02:06 PM

Yeah, should be a piece of cake! :)

jrob56 Sep 26, 2009 02:58 PM

yep you got the idea, good luck my car was way way in the air putting in the headers in, it was a lil scary actually lol.

ls1curt Sep 26, 2009 05:42 PM

i did headers with just jackstands under the k-member, but i did most of it from the top with the car on the ground. i think you need the car off the most to do the cat-back tho. good luck with the install

btw your going to love the sound of it;)

-Q- Sep 26, 2009 06:05 PM

OK, been slacking a little today, watching a lot of college football. Have the stock cat-back out, Y pipe out, and one of the cats out. I'll go back at it after the game. Not looking forward to the exhaust manifolds...

Rychen Sep 26, 2009 06:26 PM

get off the PC and start bending some wrenches:nod::cheers:

-Q- Sep 27, 2009 02:56 AM

Well I freaking slacked big-time today. Ended up watching too much football. Now my work is cut out for me tomorrow...

davidws6 Sep 27, 2009 05:11 AM

Headers
 
Good luck on those headers as the Right one can be a PITFA !

twitchtwice Sep 27, 2009 07:39 AM

good combo. if you look in my sig i have a link to some old videos and stuff from my setup (same as yours)

the install is pretty straight forward, id say once i had everything removed it was a total of about 3 hours to get everything done, probably even less, and going for a test drive.

z28camaross2 Sep 27, 2009 09:52 AM

def take a video when your all done i love that set up cant wait to get lt's for my magnaflow :cry:

donman Sep 27, 2009 08:59 PM

Hey keep us up to date on how it goes.

I am in the process of the exact same setup. I have the headers in (after doing motor mounts). I already had the magnaflow catback on but ran into what I thought were problems with getting the Y-pipe to fit with the cat back on. So I took the cat-back apart and now have the Y-pipe and cat back on the floor (had to watch football this afternoon).

Please let us know if everything fit ok. I plan on going back under tomorrow night to mess with it again..

Don

Zzzzz Sep 27, 2009 09:45 PM

I had to cut a good 6"+ off of the i-pipe on my Magnaflow CB to get it to fit. Is that the fitment issue you're having?

donman Sep 27, 2009 09:51 PM

I believe it is. I have some people telling me that everything fit for them and some that had to cut the I-pipe to make it fit.

I have a gut feeling I will need to cut it.

So did you take it out of the middle of the I-pipe?

Thanks

Don

twitchtwice Sep 27, 2009 09:59 PM

yeah i had to cut about 6" off mine as well. im sure thats because it will fit perfect with stock stuff, have to make it fit with aftermarket.

just take it off the end that will be connecting to the ypipe

-Q- Sep 28, 2009 02:04 AM

Damn, I hated to read all that...I was hoping the magnaflow was going to slide right on to the TSP Catted Y. I got all the old stuff out and the headers are in, but that's as far as I got today. Everything went in fairly well...had to cut the casting tab off the block there on the drivers side, and then that farthest back bolt on the drivers side was a real pain in the ass. Passenger side went right in, no problem.

Hopefully, the Y and the catback will be going on tomorrow after work, along with all the finishing stuff. Planning for fire in the hole tomorrow night, if all goes well.

donman Sep 28, 2009 06:34 AM

Well I had my Magnaflow connect to my stock exhaust. I was hoping that everything would line up fine.

I didn't have to do anything to connect to the stock exhaust. Everything fit fine.

Now I need to get back under there and spend some more time.

If I do have to cut it, I don't want to take it of the end connecting to the I-pipe since both the I-pipe and Y-pipe are reduced down to slip together. If I cut it there, than the I-pipe will be to big to slip over the i-pipe end.

Keep us up to date -Q-

Thanks

Don

TooLateVTEC Sep 28, 2009 10:02 AM

Its best to put the Y together FIRST and get some help to slide it onto the headers.

Get a couple extra jackstands around for even more help holding it up while you wrestle the 1/8" too small clamps they give you into place.

z28camaross2 Sep 28, 2009 03:53 PM

when i get my lt's and catted y for my magnaflow im going to have it professionally installed because its my daily driver and i want it done in one day so im not car-less and if something goes wrong i'd prob freak out.

joblo1978 Sep 28, 2009 04:58 PM

Magnaflow and LT's with cats sounds good. I have mine with Kook's. Nice and loud when opened up.


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