MustangWorks.com : Ford Forums - View Single Post - BBK one-piece flange or MAC individual flange long tube headers.

Fox Body · 04-02-2001, 11:24 AM

I ran into some money and was considering swapping my headers for some 1 3/4" long tubes. I have 1 5/8" shorty MAC headers that are individually flanged. The ones from BBK are one piece flange headers and specify '79-'93 351w.

So these are my concerns/questions:

1) I don't know if it's such a good idea in the long run to have individual flange long tubes. (concerned about installation/warping).

2) I'm not really sure at this point if long tubes would help or hurt the car's performance. (Large amounts of exhaust air flow isn't ALWAYS better).

3) HAS ANYONE USED EITHER MAC OR BBK LONG TUBES? LIKES/DISLIKES?

4) What is the diff. b/t full length headers and long tube headers?

Thanks for your input.

-------------------------------
'79 Mustang Coup
4" Cowl
Weld wheels (15x6;15x8)
Stock 5.8L
C4 w/ shift kit
1 5/8" MAC shorty headers
Holley 750 CFM
Edelbrock Performer RPM intake
2.5" Off road H-pipe, 2-chamber Flowmasters
8.8" Rear end w/ 3.55 gears (Now that's more like it!!)

Front: 225/60/15 Rear: 255/60/15 Eagle GT II
14 x 4” K&N air filter (getting the Xtreme setup soon)

"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body

[This message has been edited by Fox Body (edited 04-02-2001).]

04-02-2001, 11:24 AM	#1
Fox Body Mustang Maniac Join Date: Sep 2000 Location: GA, U.S.A Posts: 2,266	BBK one-piece flange or MAC individual flange long tube headers. I ran into some money and was considering swapping my headers for some 1 3/4" long tubes. I have 1 5/8" shorty MAC headers that are individually flanged. The ones from BBK are one piece flange headers and specify '79-'93 351w. So these are my concerns/questions: 1) I don't know if it's such a good idea in the long run to have individual flange long tubes. (concerned about installation/warping). 2) I'm not really sure at this point if long tubes would help or hurt the car's performance. (Large amounts of exhaust air flow isn't ALWAYS better). 3) HAS ANYONE USED EITHER MAC OR BBK LONG TUBES? LIKES/DISLIKES? 4) What is the diff. b/t full length headers and long tube headers? Thanks for your input. ------------------------------- '79 Mustang Coup 4" Cowl Weld wheels (15x6;15x8) Stock 5.8L C4 w/ shift kit 1 5/8" MAC shorty headers Holley 750 CFM Edelbrock Performer RPM intake 2.5" Off road H-pipe, 2-chamber Flowmasters 8.8" Rear end w/ 3.55 gears (Now that's more like it!!) Front: 225/60/15 Rear: 255/60/15 Eagle GT II 14 x 4” K&N air filter (getting the Xtreme setup soon) "Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body [This message has been edited by Fox Body (edited 04-02-2001).]