Full length headers for an lt4....
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,024
Likes: 3
From: Warrenton VA
Full length headers for an lt4....
Who makes them where can I buy them from I saw them at TPIS full length for 1500???? to me thats a bit expensive is there a cheaper alternative?
Drifting
Joined: Jul 2000
Posts: 1,661
Likes: 4
From: Phoenix, Arizona
Re: Full length headers for an lt4.... (jstyle)
Try http://www.exoticmuscle.com or call Merle or Trevor at 480-967-4222. They have a new coated long tube setup for C4s that appears to be dynoing very favorably. Also, you will need to use something like Random bullet cats behind the headers if you have to pass smog. I bought the headers, but my motor isn't finished yet, so can't give a performance recommendation. They sure look great and I know they fit because they tested them on my LT4. Good luck.
Instructor
Joined: Feb 2002
Posts: 173
Likes: 0
From: Honolulu HI
Re: Full length headers for an lt4.... (jstyle)
TPIS longtube are quality headers and are not cheap, but new from TPIS is more like $750 (check TPIS website). We ran a group purchase earlier this year sponsored by East Coast Supercharging (ECS) and got a better deal. Call Chris at ECS tell him you are a forum member and see what he can do. If that is still too much $ check out EM or Hooker they are cheaper and some people here are happy with them. Just make sure to get them coated. :chevy
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,024
Likes: 3
From: Warrenton VA
Re: Full length headers for an lt4.... (95Redsled)
cool does any one have any dyno #'s with TPIS headers. I am looking to do a hotcam install soon and want to have a decent exhaust system to complement
Instructor
Joined: Feb 2002
Posts: 173
Likes: 0
From: Honolulu HI
Re: Full length headers for an lt4.... (jstyle)
I am heading to the dyno in 2 weeks, I was at 280 RWHP before. With the addition of 1.6RR and TPIS longtubes over the winter I am hoping to break 300 RWHP. Most people est. 15 RWHP gain for longtubes.
Drifting
Joined: Nov 2000
Posts: 1,276
Likes: 0
From: Ft. Worth Texas
St. Jude Donor '11
Re: Full length headers for an lt4.... (jstyle)
cool does any one have any dyno #'s with TPIS headers. I am looking to do a hotcam install soon and want to have a decent exhaust system to complement
jeff
Melting Slicks
Joined: Dec 2001
Posts: 2,437
Likes: 1
From: Gainesville Fl
Re: Full length headers for an lt4.... (GS345)
i am a big fan of the hooker super comp long tubes myself..... dont know about any gain numbers on the TPIS headers but i do know a couple ppl here on the board have put on hooker super comp long tubes with some kind of catback and different cat combos and have gotten about 25-30rwhp
not to shabby if you ask me
not to shabby if you ask me
Burning Brakes
Joined: Nov 2001
Posts: 1,241
Likes: 9
From: Houston TX
Re: Full length headers for an lt4.... (jstyle)
i have hooker longtubes on my LT4. i bought the non-emissions set, and welded in the O2 sensor bungs. they were cheap as hell, but look to be solid and well-designed headers. the flanges are large, and they fit extremely well.
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Racer
Joined: Sep 1999
Posts: 341
Likes: 0
From: Mt. Prospect Illinois
Re: Full length headers for an lt4.... (jstyle)
I have the Hooker 2149 w/no cats.
You can get Hookers almost any performance shop/internet.
[Modified by vettmanlt4, 12:34 PM 4/22/2003]
[Modified by vettmanlt4, 12:36 PM 4/22/2003]
You can get Hookers almost any performance shop/internet.
[Modified by vettmanlt4, 12:34 PM 4/22/2003]
[Modified by vettmanlt4, 12:36 PM 4/22/2003]
Burning Brakes
Joined: Nov 2001
Posts: 1,241
Likes: 9
From: Houston TX
Re: Full length headers for an lt4.... (jstyle)
sorry, i left out the most important part... they're L98 headers. that's why i got the non-emissions set, so there wouldn't be L98-specific fittings in the way. they fit great, though.
if you search the archives, you should find some fitment info on them. i did the usual engine mount bolt reversal, although it looks as if it might've cleared anyway.
if you search the archives, you should find some fitment info on them. i did the usual engine mount bolt reversal, although it looks as if it might've cleared anyway.
Burning Brakes
Joined: Nov 2001
Posts: 1,241
Likes: 9
From: Houston TX
Re: Full length headers for an lt4.... (jstyle)
from your questions/manner i'll assume you're not totally educated on this. forgive me if i'm stating the obvious:
whether L98 or LT4, those headers are not a 100% bolt-in proposition. some fabrication and welding will be necessary in order to mate the headers to your exhaust. unless you buy just the right size cats (usually expensive ones from random tech), you'll be without the converters. on an LT4, this means reprogramming to take out the converter test and rear O2 sensors.
you'll also either have to disable/remove, or fabricate something appropriate to plumb the AIR system back into the exhaust.
either or both of those missing components renders your car illegal, and unable to pass emissions testing. unless you can weld/fabricate, at least some of the work has to be done by a shop, and one willing to risk a $100,000 EPA fine.
just a few things to consider...
the ones i have are 2151, not 2159. i know a few places who sell them on the cheap, if you can't find a good deal from one of the board sponsors, email me.
whether L98 or LT4, those headers are not a 100% bolt-in proposition. some fabrication and welding will be necessary in order to mate the headers to your exhaust. unless you buy just the right size cats (usually expensive ones from random tech), you'll be without the converters. on an LT4, this means reprogramming to take out the converter test and rear O2 sensors.
you'll also either have to disable/remove, or fabricate something appropriate to plumb the AIR system back into the exhaust.
either or both of those missing components renders your car illegal, and unable to pass emissions testing. unless you can weld/fabricate, at least some of the work has to be done by a shop, and one willing to risk a $100,000 EPA fine.
just a few things to consider...
the ones i have are 2151, not 2159. i know a few places who sell them on the cheap, if you can't find a good deal from one of the board sponsors, email me.