Needing Some Help with the 3.9

d3f4c3d · March 3rd, 2009, 12:41 PM

I'm trying to set up cold air intake and exhaust on the 2004 3.9 V6, but I'm really not finding any hits. I've heard before that the 3.9 is exactly the same as the 3.8, so does this go for engine accessories, intake, etc? SummitRacing showed some Pacesetter Headers when I filtered it down to my size, but on the main page it showed 3.8. Anyone know

Dansby · March 3rd, 2009, 12:51 PM

3.8 and 3.9 are EXACTLY the same modding wise and in almost every aspect, haha. Don't let anyone tell you any different, haha. Everything you buy for the 3.8 will fit on the 3.9.

ByPopularDemand · March 3rd, 2009, 12:53 PM

Yeah basically...Cai and exhaust are especially easy

d3f4c3d · March 3rd, 2009, 12:57 PM

Funny. I just got off the phone with a rep at American Muscle and he said I would need to make modifications to the CAI for it to work, and he couldn't tell me what those mods would be.

Dansby · March 3rd, 2009, 12:58 PM

He was more than likely just a salesmen who was trying to sell you something you dont need.

buddyantunez1 · March 3rd, 2009, 01:09 PM

as far as i know, you shouldnt have any issues with installing 3.8 BOLT-ONS on your 3.9. not sure about motor work and internals though.

d3f4c3d · March 3rd, 2009, 01:12 PM

Outstanding...I'm not feeling as much of an outcast now...

Stang808 · March 3rd, 2009, 05:39 PM

I got a 3.9 and got my CAI from american muscle and it fit perfect.

stang300a · March 4th, 2009, 02:34 PM

i have a 3.9l also and the only thing i know that works for the 3.8's and not the 3.9's is the diablosport tuner. other than that everything works fine.

willis6er · March 4th, 2009, 04:25 PM

i have a 3.9 as well. the only thing different u need to do for the cai (if u get american muscles) is to but a rubber plug to fill up the extra sensor hole. it will be obvious once u start that u will need it. ive had the same questions as you rather or not to go with the 3.8 parts but as far as i can tell everthing is the same. one guy told me that ford just wanted to use up some extra windstar parts up. anyway dont worry about exhaust or cai.

d3f4c3d · March 6th, 2009, 01:59 PM

Good stuff. I did order the American Muscle CAI kit. I guess I'll find a rubber plug somewhere, no big deal.

One thing that I can find anywhere is the 4.10 for the 7.5. Anyone know of a place that has them in stock? I got the email from American Muscle that they had their 4.10's back in stock, but I realized right before I hit checkout that it's for the 8.5

00BlueMustang · March 6th, 2009, 07:04 PM

Not to sure where you can find one but if you get the 4.10 gears might as well get t-lok while you are at it and get them installed at the same time

d3f4c3d · March 6th, 2009, 07:09 PM

Yeah, that's definitely the plan. The T-Lock is easy to find though. Gotta quote of $275 to get it all done with my supplied parts.

00BlueMustang · March 6th, 2009, 07:11 PM

Originally Posted by d3f4c3d

Yeah, that's definitely the plan. The T-Lock is easy to find though. Gotta quote of $275 to get it all done with my supplied parts.

Not bad at all

March 3rd, 2009, 12:41 PM	#1
d3f4c3d Regular 2004 Mustang V6 Convert. Under Construction Join Date: Feb 2009 Location: Homestead, FL Posts: 71 iTrader: 0 reviews	Needing Some Help with the 3.9 I'm trying to set up cold air intake and exhaust on the 2004 3.9 V6, but I'm really not finding any hits. I've heard before that the 3.9 is exactly the same as the 3.8, so does this go for engine accessories, intake, etc? SummitRacing showed some Pacesetter Headers when I filtered it down to my size, but on the main page it showed 3.8. Anyone know

March 3rd, 2009, 12:53 PM	#3
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,666 iTrader: 0 reviews	Yeah basically...Cai and exhaust are especially easy __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

March 3rd, 2009, 01:09 PM	#6
buddyantunez1 November 08 ROTM 2000 3.8L Mustang 195.9/220.8 hp/tq N/A Join Date: Sep 2008 Location: Cleveland MS/Stafford VA Posts: 1,370 iTrader: 0 reviews	as far as i know, you shouldnt have any issues with installing 3.8 BOLT-ONS on your 3.9. not sure about motor work and internals though. __________________ ~Nitrous is like a Hot Girl with STD's, you know you wanna hit it, but your afraid of the consequences~

March 4th, 2009, 02:34 PM	#9
stang300a Regular 2004 Mustang V6 Join Date: Jul 2007 Posts: 247 iTrader: 0 reviews	i have a 3.9l also and the only thing i know that works for the 3.8's and not the 3.9's is the diablosport tuner. other than that everything works fine. __________________ 2004 Mustang 3.9L V6 with K&N intake, Dual Flowmaster Super 40s, Motoblue 42% Pulley, GT rear sway bar, drilled and slotted rotors, SCT tuner, Black FR500's 17 by 10.5 and 17 by 9, 4.10 motive gears and FRPP T-Lock.

March 4th, 2009, 04:25 PM	#10
willis6er Enthusiast 2003 Mustang GT N/A Join Date: Jan 2009 Location: North Carolina Posts: 622 iTrader: 0 reviews	i have a 3.9 as well. the only thing different u need to do for the cai (if u get american muscles) is to but a rubber plug to fill up the extra sensor hole. it will be obvious once u start that u will need it. ive had the same questions as you rather or not to go with the 3.8 parts but as far as i can tell everthing is the same. one guy told me that ford just wanted to use up some extra windstar parts up. anyway dont worry about exhaust or cai. __________________ NCMM Founder NCMM -- Check it out and join us! PM White03v6 or myself if interested in joining NCMM. RIP 04 v6... Hello 03 GT

March 3rd, 2009, 12:51 PM	#2
Dansby Hardcore Enthusiast Join Date: Mar 2007 Location: Orange, Texas Posts: 2,285 iTrader: 1 reviews	3.8 and 3.9 are EXACTLY the same modding wise and in almost every aspect, haha. Don't let anyone tell you any different, haha. Everything you buy for the 3.8 will fit on the 3.9.

March 3rd, 2009, 12:57 PM	#4
d3f4c3d Regular 2004 Mustang V6 Convert. Under Construction Join Date: Feb 2009 Location: Homestead, FL Posts: 71 iTrader: 0 reviews	Funny. I just got off the phone with a rep at American Muscle and he said I would need to make modifications to the CAI for it to work, and he couldn't tell me what those mods would be.

March 3rd, 2009, 12:58 PM	#5
Dansby Hardcore Enthusiast Join Date: Mar 2007 Location: Orange, Texas Posts: 2,285 iTrader: 1 reviews	He was more than likely just a salesmen who was trying to sell you something you dont need.

March 3rd, 2009, 01:12 PM	#7
d3f4c3d Regular 2004 Mustang V6 Convert. Under Construction Join Date: Feb 2009 Location: Homestead, FL Posts: 71 iTrader: 0 reviews	Outstanding...I'm not feeling as much of an outcast now...

March 3rd, 2009, 05:39 PM	#8
Stang808 Regular 2004 Mustang v6 3.9 Join Date: Feb 2009 Location: Hawaii Posts: 137 iTrader: 0 reviews	I got a 3.9 and got my CAI from american muscle and it fit perfect.

March 6th, 2009, 01:59 PM	#11
d3f4c3d Regular 2004 Mustang V6 Convert. Under Construction Join Date: Feb 2009 Location: Homestead, FL Posts: 71 iTrader: 0 reviews	Good stuff. I did order the American Muscle CAI kit. I guess I'll find a rubber plug somewhere, no big deal. One thing that I can find anywhere is the 4.10 for the 7.5. Anyone know of a place that has them in stock? I got the email from American Muscle that they had their 4.10's back in stock, but I realized right before I hit checkout that it's for the 8.5

March 6th, 2009, 07:04 PM	#12
00BlueMustang Hardcore Enthusiast 2000 Mustang Join Date: Jan 2009 Location: Raleigh, North Carolina Posts: 1,685 iTrader: 0 reviews	Not to sure where you can find one but if you get the 4.10 gears might as well get t-lok while you are at it and get them installed at the same time __________________ *Detailing Crew Member* North Carolina Modded Mustangs #5

March 6th, 2009, 07:09 PM	#13
d3f4c3d Regular 2004 Mustang V6 Convert. Under Construction Join Date: Feb 2009 Location: Homestead, FL Posts: 71 iTrader: 0 reviews	Yeah, that's definitely the plan. The T-Lock is easy to find though. Gotta quote of $275 to get it all done with my supplied parts.

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