Which Long Tubes to go with Force II cat-back?

90LxDroptop · 12-12-2001, 11:58 PM

Hey everyone...I was wondering which long tube headers do you suggest to go with the Force II Cat-back system?...

1BAD89 · 12-13-2001, 12:07 AM

Dave_mustang_50 · 12-13-2001, 08:17 PM

I have had my mac`s on for about 4 years and they still look like new. I`ve heard people having problems though. They sound real good. Not too loud with the top down either. I recently changed from the high flow cats to off road and it made a big diff. One thing I noticed was my engine bay seemed to get much hotter with those coated headers. Either way I`m sure youll have fun.
Good luck

1BAD89 · 12-14-2001, 01:28 PM

Quote:

One thing I noticed was my engine bay seemed to get much hotter with those coated headers.

Your engine bay seemed much hotter with the jet-hot coated headers?

Dave_mustang_50 · 12-14-2001, 08:20 PM

I was told it was because the htc coating dissapates heat.

1BAD89 · 12-16-2001, 02:23 PM

How do you like your systemax II heads?

Dave_mustang_50 · 12-16-2001, 07:46 PM

Its hard to say. I had the kit installed all at once. The total combo puts 302/307 HP/TQ to the rear wheels. The cam has a nice lopey idle and its very streetable.I have the smaller 1.90 heads not the 2.02 heads Rick91GT has.

Five0 · 12-16-2001, 09:29 PM

I have the mac on mine, the fit is ok.

Here you can see the header rubs the firewall.

fastang · 12-16-2001, 11:12 PM

I've been running the BBK's for about a year now and havent had any real problems. Some AC and smog pump hoses were sitting too close and getting burnt so be carefull and strap them down away from the headers well.

I have the force II 3chambers and H pipe with hi flo cats, definitely unique sounding around here.

Mustang_289 · 12-19-2001, 08:55 PM

We installed MAC long-tubes on our 88GT, while we were at it - we installed carquest motor mounts. Noticed the drivers side header was rubbing against the steering linkage. Come to find out - the carquest mounts sat the block a little higher than oem causing the header tube to rise and rub against the linkage.

Went with the Energy Suspension mounts, which actually lowered the block slightly, and corrected the problem. If anyone is looking to run longtube headers beware of motor mounts. Even the stock oem ford mounts over time might cause lt headers to rub on firewall or against the steering linkage.

ricekilla · 12-20-2001, 10:26 PM

if you want a cheap knock off of the mac longtubes, go with the bbk. but if you want the best headers in the performance exhaust industry hands down, go with the mac longtubes. combine 30+ years experience making headers with quality hand craftsmanship and you got a damn nice set of headers that will LAST. pick up a pro chamber and a mac flowpath catback system too. the flowpath muffler out flows the dynomax and flowmaster by 49 cfm and doesnt have any packing to blow out.

ThndrNLightning · 12-21-2001, 09:49 PM

I've installed and run both the MAC 1-5/8 headers and the BBKs. IMHO, hands down BBK. They are thicker gauge, thicker flanges, and fit like a glove. Never had a single issue with BBK. I've had problems with 2 sets of MAC longtubes.....with fitup mainly.

BTW, I currently run the BBKs with offroad and the Force II (3-chamber) system and it is music to my ears. Mufflers are truly sound quality devices on most street cars. And one would be hard-pressed to pick up a sound quality difference between longtube header manufacturers...

Just my 2 cents. Happy holidays!

- Kevin

12-12-2001, 11:58 PM	#1
90LxDroptop Registered Member Join Date: Jun 2001 Location: Arlington Hts. IL Posts: 315	Which Long Tubes to go with Force II cat-back? Hey everyone...I was wondering which long tube headers do you suggest to go with the Force II Cat-back system?... __________________ 90 LX Convertible 5.0 AOD 3.73 Gears, Underdrive Pulleys, TransGo shift kit, A servo, Subframe Connectors, o/r h-pipe, 2 chamber flows, Pony Wheels

12-13-2001, 08:17 PM	#3
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	I have had my mac`s on for about 4 years and they still look like new. I`ve heard people having problems though. They sound real good. Not too loud with the top down either. I recently changed from the high flow cats to off road and it made a big diff. One thing I noticed was my engine bay seemed to get much hotter with those coated headers. Either way I`m sure youll have fun. Good luck __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

12-14-2001, 08:20 PM	#5
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	I was told it was because the htc coating dissapates heat. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

12-16-2001, 07:46 PM	#7
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	Its hard to say. I had the kit installed all at once. The total combo puts 302/307 HP/TQ to the rear wheels. The cam has a nice lopey idle and its very streetable.I have the smaller 1.90 heads not the 2.02 heads Rick91GT has. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

12-16-2001, 09:29 PM	#8
Five0 Registered Member Join Date: Apr 2000 Location: middleburg, fl, usa Posts: 1,134	I have the mac on mine, the fit is ok. Here you can see the header rubs the firewall. __________________ James Cox RHC Member #44 nochevy@hotmail.com 1991 Mustang LX Dart iron eagle block, 4340 28oz 347 crank, 4340 h-beam rods, probe ultra light pistons canfield heads “race ported by Brent Frazier”, solid roller cam and lifters “custom grind”, kooks 1 7/8" race headers, and much more. Engine built by Brent Frazier.

12-13-2001, 12:07 AM	#2
1BAD89 Tubbed and Juiced Join Date: Mar 2001 Location: Tulsa, Oklahoma Posts: 1,861	BBK.

12-16-2001, 02:23 PM	#6
1BAD89 Tubbed and Juiced Join Date: Mar 2001 Location: Tulsa, Oklahoma Posts: 1,861	How do you like your systemax II heads?

12-16-2001, 11:12 PM	#9
fastang Registered Member Join Date: Aug 2000 Location: santa ana ca Posts: 1,349	I've been running the BBK's for about a year now and havent had any real problems. Some AC and smog pump hoses were sitting too close and getting burnt so be carefull and strap them down away from the headers well. I have the force II 3chambers and H pipe with hi flo cats, definitely unique sounding around here. __________________ 98 GT manual trans, Magna Flow exh. old car: 95GT, TFS T.W. heads, Holley Intake, B303 cam, FRPP 30lb injectors, Scorpion 1.6 rollers, 65mm TB, 73mm MAF, BBK Longtubes, Flowmaster cat back, March Pulleys, MSD coil, 9mm wires, Tremec 3550 trans, Pro5.0 shifter,10.5 Motorsport clutch, FMS aluminum driveshaft, weld in subframe connectors. 190lph pump, BBK adj FPR.

12-19-2001, 08:55 PM	#10
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	We installed MAC long-tubes on our 88GT, while we were at it - we installed carquest motor mounts. Noticed the drivers side header was rubbing against the steering linkage. Come to find out - the carquest mounts sat the block a little higher than oem causing the header tube to rise and rub against the linkage. Went with the Energy Suspension mounts, which actually lowered the block slightly, and corrected the problem. If anyone is looking to run longtube headers beware of motor mounts. Even the stock oem ford mounts over time might cause lt headers to rub on firewall or against the steering linkage.

12-20-2001, 10:26 PM	#11
ricekilla Registered Member Join Date: Sep 1999 Location: sinful boys SO CAL Posts: 736	if you want a cheap knock off of the mac longtubes, go with the bbk. but if you want the best headers in the performance exhaust industry hands down, go with the mac longtubes. combine 30+ years experience making headers with quality hand craftsmanship and you got a damn nice set of headers that will LAST. pick up a pro chamber and a mac flowpath catback system too. the flowpath muffler out flows the dynomax and flowmaster by 49 cfm and doesnt have any packing to blow out. __________________ 89 GT, 3.55's, longtubes, pro chamber, flowpath dumps, mac uppers and lowers+ pinion snubber, underdrive pullies, 70mm t-body, 190 lph penis pump, mildly home ported E7'S by the kid hisself, nitto drag radials..... 13.4 @ 106......... on nitto drag raidials. spinning like gangbusters...... chevy silverado w/ a full works suzuki RM 250 and a full works honda fourtrax 250R (girlfriends bike) in the back, moto x'in it up bro!

12-21-2001, 09:49 PM	#12
ThndrNLightning Registered Member Join Date: Dec 2001 Location: Williamsburg, VA Posts: 7	I've installed and run both the MAC 1-5/8 headers and the BBKs. IMHO, hands down BBK. They are thicker gauge, thicker flanges, and fit like a glove. Never had a single issue with BBK. I've had problems with 2 sets of MAC longtubes.....with fitup mainly. BTW, I currently run the BBKs with offroad and the Force II (3-chamber) system and it is music to my ears. Mufflers are truly sound quality devices on most street cars. And one would be hard-pressed to pick up a sound quality difference between longtube header manufacturers... Just my 2 cents. Happy holidays! - Kevin

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