Why they don't make headers for the TL 3G ????
10-08-2009, 12:25 AM
#4
Three Wheelin'
roflllllllll
OP. they make smth thats better than headers...they're called Cat Deletes...pretty much a straight through pipe that bolts on the head, all the way down to the J-pipe (j-pipe is what connects the 2 banks together into 1 catback).
headers are cast into the heads..pretty much, the exhaust runners are inside the heads themselves, and they merge into one outlet outta the head, to which the cats bold up to.
OP. they make smth thats better than headers...they're called Cat Deletes...pretty much a straight through pipe that bolts on the head, all the way down to the J-pipe (j-pipe is what connects the 2 banks together into 1 catback).
headers are cast into the heads..pretty much, the exhaust runners are inside the heads themselves, and they merge into one outlet outta the head, to which the cats bold up to.
10-08-2009, 09:08 AM
#6
Racer
The aftermarket really needs to get on the bandwagon with these cars. More important than headers, I'd like to see a Mass Air conversion kit made availible. that would make these cars a hell of a lot easier to mod. I'd also like to see some aftermarket comanies design heads that will accept headers. It's been discussed already about how much heat is under the hood of our 3 gen TL with the cats where they are. I guess its up to the aftermarket to wake up.
10-08-2009, 12:24 PM
#7
practicing nihilist
^remove cats. much less heat soak. oh, and take all those plastic engine covers off that are in your avatar. it helps a tad. Innacurate and another cat are working on a hood scoop option that flushes fresh air.
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10-08-2009, 12:43 PM
#8
The aftermarket really needs to get on the bandwagon with these cars. More important than headers, I'd like to see a Mass Air conversion kit made availible. that would make these cars a hell of a lot easier to mod. I'd also like to see some aftermarket comanies design heads that will accept headers. It's been discussed already about how much heat is under the hood of our 3 gen TL with the cats where they are. I guess its up to the aftermarket to wake up.
10-08-2009, 02:18 PM
#10
This car is American made. This car was not made overseas, you don't see a TL in Japan... That is why there is less interest and mods on our cars. We're like a Japican car who wants to MOD THAT?? We will have arguments from muscle cars to imports! Which side do we take!
10-08-2009, 02:57 PM
#12
This car is American made. This car was not made overseas, you don't see a TL in Japan... That is why there is less interest and mods on our cars. We're like a Japican car who wants to MOD THAT?? We will have arguments from muscle cars to imports! Which side do we take!
10-08-2009, 06:59 PM
#13
Instructor
Thread Starter
roflllllllll
OP. they make smth thats better than headers...they're called Cat Deletes...pretty much a straight through pipe that bolts on the head, all the way down to the J-pipe (j-pipe is what connects the 2 banks together into 1 catback).
headers are cast into the heads..pretty much, the exhaust runners are inside the heads themselves, and they merge into one outlet outta the head, to which the cats bold up to.
OP. they make smth thats better than headers...they're called Cat Deletes...pretty much a straight through pipe that bolts on the head, all the way down to the J-pipe (j-pipe is what connects the 2 banks together into 1 catback).
headers are cast into the heads..pretty much, the exhaust runners are inside the heads themselves, and they merge into one outlet outta the head, to which the cats bold up to.
thanks !!! that is the answer i was looking for !! I know that they don't have manifolds, i only was wondering why ??
10-08-2009, 07:27 PM
#14
Three Wheelin'
come to think of it...when ppl say, buy american and support the country...this thing is fucking assembled in the US by the very american factory workers in the american land
10-08-2009, 07:30 PM
#15
Three Wheelin'
1-emissions...having the cats close to the heads ensures warming up quicker, reducing cold start emissions
2-weight saving...having the cats bolted directly into the head, and exhaust runners cast inside the head eleminates the need for headers, which would add more weight...and anyone who's held a cast iron header before, knows they're heavy.
i personally do not mind this design...having one smooth 2.5 inch pipe running down to the Jpipe from the head is good enough.
10-08-2009, 08:35 PM
#17
AZ Community Team
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10-08-2009, 09:53 PM
#18
2 reasons...
1-emissions...having the cats close to the heads ensures warming up quicker, reducing cold start emissions
2-weight saving...having the cats bolted directly into the head, and exhaust runners cast inside the head eleminates the need for headers, which would add more weight...and anyone who's held a cast iron header before, knows they're heavy.
i personally do not mind this design...having one smooth 2.5 inch pipe running down to the Jpipe from the head is good enough.
1-emissions...having the cats close to the heads ensures warming up quicker, reducing cold start emissions
2-weight saving...having the cats bolted directly into the head, and exhaust runners cast inside the head eleminates the need for headers, which would add more weight...and anyone who's held a cast iron header before, knows they're heavy.
i personally do not mind this design...having one smooth 2.5 inch pipe running down to the Jpipe from the head is good enough.
Yea right? It makes me wonder how much power there is in ported heads.
10-08-2009, 10:02 PM
#19
This car is American made. This car was not made overseas, you don't see a TL in Japan... That is why there is less interest and mods on our cars. We're like a Japican car who wants to MOD THAT?? We will have arguments from muscle cars to imports! Which side do we take!
You mean, "Japanican" or "Japerican".
10-08-2009, 11:52 PM
#22
Three Wheelin'
what i said in the previous post was meant as a stock setup
10-11-2009, 03:20 PM
#25
Team Owner
actually at stock setup, the heads flow great...porting them would be pointless without bigger valves, if you did it as if your porting an exhaust manifold (header)...but if ur gonna go into that...then that would apply to just about every head thats build the old traditional way, with headers attached to it, unless its a race head.
what i said in the previous post was meant as a stock setup
what i said in the previous post was meant as a stock setup
10-11-2009, 04:56 PM
#26
Senior Moderator
I think the OP has gotten his answer, if you guys want to make a new thread about porting the exhaust manifold, by all means go for it 
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