Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread
About Headers #81442 Jan 12, 11:08pm Jan 12, 11:08pm
Joined: Dec 2003
Posts: 275
GA
Style OP
Member
2000 Toyota Celica
Style OP
Member
2000 Toyota Celica

Joined: Dec 2003
Posts: 275
GA
About Headers
Hello Everyone: I am ready to buy headers but don't know which one is good. 4 into 2 into 1? or 4 into 1?

and which brand will gain more horsepower?

Re: About Headers [Re: Style] #81443 Jan 13, 6:27am Jan 13, 6:27am
Joined: Aug 2003
Posts: 6,371
New Orleans, LA
Speed4TheNeed
Caleb
2000 Toyota Celica
Speed4TheNeed
Caleb
2000 Toyota Celica

Joined: Aug 2003
Posts: 6,371
New Orleans, LA
personally i like 4-1 because it usually has less resistance to airflow and i like the fact that its one piece.

that said, a 4-2-1 isnt THAT much of a difference and the installation is easier because you don't have to twist it in such awkward ways (smaller pieces = less hassle)

so far, trial makes the best horsepower gains (about 11 whp). but its expensive..in the neighborhood of $700. (normal headers can be found for around $500). the price is so steep because trial is a japanese company and you will need to pay destination charges for the product.

that said, dc motorsports is coming out (or has recently come out) with a header for the gts that promises even better gains than the trial and for a cheaper price. worth looking into, in my opinion. thumbsup

Re: About Headers [Re: Speed4TheNeed] #81444 Jan 13, 7:39am Jan 13, 7:39am
Joined: May 2002
Posts: 3,294
Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS
Steven
ECelica Staff
2001 Toyota Celica GTS
Steven
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,294
Riverside, CA
Brashboy Japan makes a 4-2-1 header. 4-2-1's are different than 4-1's because of the difference in runner collectors. Some enthuasists choose to have long tube headers which enables you to tune your different locations of your power band which is beyond me.

Originally Posted by sPeEd4tHeNeEd
personally i like 411 because it usually has less resistance to airflow and i like the fact that its one piece.

that said, a 4-2-1 isnt THAT much of a difference and the installation is easier because you don't have to twist it in such awkward ways (smaller pieces = less hassle)

so far, trial makes the best horsepower gains (about 11 whp). but its expensive..in the neighborhood of $700. (normal headers can be found for around $500). the price is so steep because trial is a japanese company and you will need to pay destination charges for the product.

that said, dc motorsports is coming out (or has recently come out) with a header for the gts that promises even better gains than the trial and for a cheaper price. worth looking into, in my opinion. thumbsup

Re: About Headers [Re: Style] #81445 Jan 13, 11:22am Jan 13, 11:22am
Joined: Feb 2003
Posts: 271
Michigan
F
fusi0n
Member
fusi0n
F
Member

Joined: Feb 2003
Posts: 271
Michigan
4-2-1 = power across the whole powerband

4-1 = high end

Re: About Headers [Re: Style] #81446 Jan 13, 7:19pm Jan 13, 7:19pm
Joined: Nov 2003
Posts: 242
virgin islands
2000 silver/blue Toyota Celica
hybridcelica
Member
2000 Toyota Celica
hybridcelica
2000 silver/blue Toyota Celica
Member
2000 Toyota Celica

Joined: Nov 2003
Posts: 242
virgin islands
the celica header is a 4 into 1 design but in actuallity the entire system including the down pipe is a 4 to 2 to 1 design! that is one of the reason the amss header lost power in the low and middle rpm band cause they didnt put in the divider that made the system a 4 to 2 to 1 header! the divider in the down pipe splits the exhaust gases from #1 and #4 cylinder and keep them together away from #2 and #3 the flow of the gases in each runner helps pull the gases of the other runner its paird with in the collector,cause the gases are travelling faster cause of less turbulance from cylinder interferance(scavenging and reversion)and the gases travel faster in two separate smaller section of pipe than 1 big pipe.(more preasure)


HYBRID:resulting from the combination of two or more mechanically dissimilar origins!
"...... code":every man is a shadow,let him be treated as such,until proven otherwise by a show of character or code!
Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
redracer
redracer
2002 Toyota Celica
Greenville, SC

Posts: 78
Joined: November 2002
Thanks: I can proudly say I do all the work to this car myself w/ help from friends, Xtra props to everythingcelica.com
Show All Member Profiles 
Recent Topics
stock radio hardware
by 97celica. 12/12/2017 12:12 PM
FS: 2000 Toyota Celica for sale Los Angeles area
by LaRN. 12/10/2017 9:52 AM
Toyota Celica Upgrades
by FlawlessGamerYT. 12/09/2017 11:06 AM
Why did my tachometer stop working
by NinjaMasterShaw. 12/08/2017 6:20 AM
Gauge cluster board aftermarket
by NinjaMasterShaw. 12/07/2017 5:06 PM
How would I go about giving my steering wheel a facelift
by NinjaMasterShaw. 12/06/2017 2:22 PM
Hard to press cluch pedal?
by Arve2afm. 12/05/2017 6:40 AM
Hello! New Member here :)
by Kizmo_JW. 11/29/2017 2:30 PM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20171122)