Mac longtubes - 2003-04 Mach 1 Registry Owners Club

SigMach · 04-26-2010, 07:29 AM

Thinking about throwing some Mac longtubes on the Mach with a catted x-pipe. Is it worth the money and install?

03Mach1BoyAdam · 04-26-2010, 08:13 AM

I went with the Mac LT's & the matching H Pipe, for the money and install I think it's well worth it. I did the install myself and it took me about a full week only working on it 2 hours every day and having more time on the weekend and it wasn't too bad. I didn't drop the K member but it would've been easier if I did. If you have any questions just ask!

Mudd92 · 04-26-2010, 11:26 AM

Do you still have to drop a header to get the trans out with the mac aswell?

03Mach1BoyAdam · 04-26-2010, 12:02 PM

Yes I believe you do, just have to loosen up the passenger side.

SigMach · 04-26-2010, 12:28 PM

Quote:

Originally Posted by 03Mach1BoyAdam

I went with the Mac LT's & the matching H Pipe, for the money and install I think it's well worth it. I did the install myself and it took me about a full week only working on it 2 hours every day and having more time on the weekend and it wasn't too bad. I didn't drop the K member but it would've been easier if I did. If you have any questions just ask!

Did you notice a big performance increase? And is there anything else you need for the install that doesnt come with them?

03Mach1BoyAdam · 04-26-2010, 02:05 PM

I reused the stock manifold gaskets and used some of the factory studs and some of the supplied bolts that came with the long tubes. As for performance increase I haven't gotten a tune yet which would help me even more but I did feel more of a "pull" in the higher rpms. Deff worth the install, time, and money.

04Machsy · 04-26-2010, 06:36 PM

Quote:

Originally Posted by 03Mach1BoyAdam

I reused the stock manifold gaskets and used some of the factory studs and some of the supplied bolts that came with the long tubes. As for performance increase I haven't gotten a tune yet which would help me even more but I did feel more of a "pull" in the higher rpms. Deff worth the install, time, and money.

How much did the sound differ? i have been trying to figure out what lts to use & do you have a video after the install?

ASH302 · 04-26-2010, 08:44 PM

Quote:

Originally Posted by 04Machsy

How much did the sound differ? i have been trying to figure out what lts to use & do you have a video after the install?

if you get on youtube, there a few videos of mach's with the mac LT's on there,

also the stock manifold gaskets are the best to use, when i did header install, didn't do LT's but they were the best gasket to use.

Parker · 04-27-2010, 12:21 AM

The Mac longtubes are an alright header. I have them on my car and did the install myself. I had some alignment issues with my Leathal performance X-pipe and the Mac headers. I used new OEM gaskets and studs. The install was pretty easy. I did it by dropping the K member in my garage with no lift just a few jack stands and a couple jacks. The only part that you really need someone to help you is when you re-install the K member.

ASH302 · 04-27-2010, 05:47 AM

i didn't drop my Kmember, make sure you do, it was a pain and would have made things a little bite easier.

Gasisontheright · 04-27-2010, 10:24 AM

Quote:

Originally Posted by Parker

The Mac longtubes are an alright header. I have them on my car and did the install myself. I had some alignment issues with my Leathal performance X-pipe and the Mac headers.

I'm looking into getting the Lethal X, can you give me some details on the alignment issues? Thanks

wigsite · 04-27-2010, 03:35 PM

I gained 15 HP and 20 ft/lbs torque with the BBK long tubes. Plus it sounds awesome as well.

Parker · 04-28-2010, 05:35 AM

Quote:

Originally Posted by Gasisontheright

I'm looking into getting the Lethal X, can you give me some details on the alignment issues? Thanks

The driver side Mac header kind of has a slight angle to it and the Lethal X pipe is straight. I don't know for sure if it was the X pipe or the header but I had to have a small section on the X pipe bent. I will take a couple pictures of it and post them in the next day or so.

Gasisontheright · 04-28-2010, 10:11 AM

Thanks Parker, I know exactly what you're talking about, mine is the same way....didn't have any issues before because I had my prochamber cut down to fit....ditching it now, the exhaust is swirling in the prochamber, which has greatly reduced my sound...no much popping on decel. Guess I'll have to do some bending when I get mine.

04-26-2010, 07:29 AM	#1
SigMach Registered User Join Date: Jul 2009 Location: Winchester, VA Posts: 13	Mac longtubes Thinking about throwing some Mac longtubes on the Mach with a catted x-pipe. Is it worth the money and install?

04-26-2010, 08:13 AM	#2
03Mach1BoyAdam Registered User Join Date: Sep 2007 Location: Cecil County, MD Posts: 785	Re: Mac longtubes I went with the Mac LT's & the matching H Pipe, for the money and install I think it's well worth it. I did the install myself and it took me about a full week only working on it 2 hours every day and having more time on the weekend and it wasn't too bad. I didn't drop the K member but it would've been easier if I did. If you have any questions just ask! __________________ 2003 Torch Red Mach 1 - 5 Speed IUP Steeda Tri Ax Short Throw,Steeda Clutch Quadrant, Steeda Firewall Adjuster, Steeda Shock Tower Brace, MMR Rear Seat Delete, FRPP UCA's, Roush Stage 2 LCA's, Moser 31 Spline Axles, FRPP 31 Spline LSD, FRPP 4.10's, FRPP Aluminum DS, Swarr Rear Axle Brace, GMS Girdle, Steeda G Trac Bar, PHP Spacer, JLT RAI, Predator Tuner, 1/2" Shaker Extension, H&R SS Springs, MM C/C Plates, MAC Long Tubes, MAC O/R H Pipe, Magnaflow Magnapacks, 17x9 & 17x10.5 Black FR500's.

04-26-2010, 11:26 AM	#3
Mudd92 03 Mach Join Date: Jan 2009 Location: Savannah, GA Posts: 1,396	Re: Mac longtubes Do you still have to drop a header to get the trans out with the mac aswell? __________________ -03 AB Mach 5spd Accufab TB, BBK LT's, BBK O/R X, Mac Catback, JLT RAI, 98 Cobra intake cams, EBC redstuff pads, slotted drilled rotors, 31 spline mosers, 31 spline cobra posi, 3" studs, FRPP 3:73, welded tubes, smoked tails. Eaton swap! 465hp,425tq @ 15deg and 3.4pulley @ 10lb. T56 magnum! - Tuned by Eric Brooks! Built motor coming soon -95 Chevy C1500 5.7 auto Stock, tow rig and DD. -Joey

04-26-2010, 12:02 PM	#4
03Mach1BoyAdam Registered User Join Date: Sep 2007 Location: Cecil County, MD Posts: 785	Re: Mac longtubes Yes I believe you do, just have to loosen up the passenger side. __________________ 2003 Torch Red Mach 1 - 5 Speed IUP Steeda Tri Ax Short Throw,Steeda Clutch Quadrant, Steeda Firewall Adjuster, Steeda Shock Tower Brace, MMR Rear Seat Delete, FRPP UCA's, Roush Stage 2 LCA's, Moser 31 Spline Axles, FRPP 31 Spline LSD, FRPP 4.10's, FRPP Aluminum DS, Swarr Rear Axle Brace, GMS Girdle, Steeda G Trac Bar, PHP Spacer, JLT RAI, Predator Tuner, 1/2" Shaker Extension, H&R SS Springs, MM C/C Plates, MAC Long Tubes, MAC O/R H Pipe, Magnaflow Magnapacks, 17x9 & 17x10.5 Black FR500's.

04-26-2010, 02:05 PM	#6
03Mach1BoyAdam Registered User Join Date: Sep 2007 Location: Cecil County, MD Posts: 785	Re: Mac longtubes I reused the stock manifold gaskets and used some of the factory studs and some of the supplied bolts that came with the long tubes. As for performance increase I haven't gotten a tune yet which would help me even more but I did feel more of a "pull" in the higher rpms. Deff worth the install, time, and money. __________________ 2003 Torch Red Mach 1 - 5 Speed IUP Steeda Tri Ax Short Throw,Steeda Clutch Quadrant, Steeda Firewall Adjuster, Steeda Shock Tower Brace, MMR Rear Seat Delete, FRPP UCA's, Roush Stage 2 LCA's, Moser 31 Spline Axles, FRPP 31 Spline LSD, FRPP 4.10's, FRPP Aluminum DS, Swarr Rear Axle Brace, GMS Girdle, Steeda G Trac Bar, PHP Spacer, JLT RAI, Predator Tuner, 1/2" Shaker Extension, H&R SS Springs, MM C/C Plates, MAC Long Tubes, MAC O/R H Pipe, Magnaflow Magnapacks, 17x9 & 17x10.5 Black FR500's.

04-27-2010, 12:21 AM	#9
Parker Registered User Join Date: May 2007 Location: Plymouth, MN Posts: 181	Re: Mac longtubes The Mac longtubes are an alright header. I have them on my car and did the install myself. I had some alignment issues with my Leathal performance X-pipe and the Mac headers. I used new OEM gaskets and studs. The install was pretty easy. I did it by dropping the K member in my garage with no lift just a few jack stands and a couple jacks. The only part that you really need someone to help you is when you re-install the K member. __________________ Mods: MAC Longtube Headers Lethal Performance X-pipe Magnaflow Catback FRPP 4.10 gears T/A Girdle PHP Intake Spacer K&N Air Intake Steeda Underdrive Pulleys Diablosport Tune Steeda Tri-Ax Shifter H&R Super Sport Springs Bilstein HD shocks and struts Maximum Motorsports C/C plates

04-27-2010, 05:47 AM	#10
ASH302 Soldier for Christ Join Date: May 2009 Location: Willis, TX at The Daddy ASh Ranch Posts: 30,596	Re: Mac longtubes i didn't drop my Kmember, make sure you do, it was a pain and would have made things a little bite easier. __________________ 2001 lazer red v6 Mustang coupe sold in Aug 2006 2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012 2013 grey 6 speed coupe GT Mustang Sold in Feb 2014 2013 RED Dodge Charger R/T Sold Nov 2014 2002 custom Blue 02 Auto Trans AM Sold June 2015 1998 Cobra Black Sold summer 2016 Current 2009 Ford F350 FX4 March 2017 (work truck) 2003 OW 5.0 Mach 1 Aug 2020 ASh

04-27-2010, 03:35 PM	#12
wigsite Registered User Join Date: Jul 2004 Location: Delaware, Ohio Posts: 1,504	Re: Mac longtubes I gained 15 HP and 20 ft/lbs torque with the BBK long tubes. Plus it sounds awesome as well. __________________ Borla catback BBK LT's/ catted mid JLT RAI..4.10..Moser 28 spline..UPR u/l Dyno tuned by CRT Performance Pro 5.0 Power Tower shifter best 1/4 12.62 @ 108.05 mph 313 RWHP..330 TQ

04-28-2010, 10:11 AM	#14
Gasisontheright Registered User Join Date: Apr 2006 Location: Parkersburg, WV Posts: 251	Re: Mac longtubes Thanks Parker, I know exactly what you're talking about, mine is the same way....didn't have any issues before because I had my prochamber cut down to fit....ditching it now, the exhaust is swirling in the prochamber, which has greatly reduced my sound...no much popping on decel. Guess I'll have to do some bending when I get mine. __________________ 2003 Torch Red 5 speed

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