Lt Header Question

american muscle · January 27th, 2008, 10:19 PM

Im looking at ordering the kooks 1 5/8" LT's with 2.5" catted x. Will I need a tune after installing the long tubes. I was reading on another thread by modern muscle about all the problems he was having with his tunes. If I need one what should I get and were should I order it from. Also does anybody know of any good performance shops around southern ohio?

06VistaGT · January 27th, 2008, 10:24 PM

You would need a tune, I bought my Kooks from Lethalperformance.com, but Brenspeed sells them too. Actually, got my tune for them and my CAI from Brenspeed. I had the check engine light come on once, but a quick call to Brenspeed and they emailed me an adjusted tune for free. No issues since, had them on for almost 2yrs now.

american muscle · January 27th, 2008, 10:34 PM

Is there much difference between the SCT and the Diablosport? Which is better/easier to work with?

Jucostud · January 27th, 2008, 10:53 PM

I have the sct xcal 3 and love it. All the performance shops around me use sct also. They are both supposed to be pretty good though. I would say go with the sct, but that's just because i have one. You should buy it from brenspeed.

acehogg69 · January 28th, 2008, 11:50 AM

AM what part of Ohio ya in? Check out Brenspeed. He's in northern Indiana. He would probably cut ya a good deal on the exhaust tuner and a CAI if u don't have one. I am moving back to Cincy in a few days.

garydahl · January 28th, 2008, 12:18 PM

I have longtubes and C&L CAI .You will need a tune with the CAI but not with the headers!
The only reason you would want to dyno tune after the LT headers is to get rid of the "O2 sensor responding to slow error" They adjusted my open loop to 2200 rpm to get rid of the nasty check engine light. The problem that I can only assume holds true with all Long tube headers is that the O2 sensors are moved further from the engine so they don't get as hot as fast.
I had both SCT and Predator tuner and the only reason I changed tuners is ,I changed dyno shops and they only used the Predator tuner. I really don't think there is much difference between the two of them !
I love my headers and my CAI ! This is my car on a dyno if you want to see and here it

YouTube - 2007 Mustang GT Automatic on the dyno

Good luck

onederful100 · January 28th, 2008, 12:21 PM

you may need a tune for the hi flow cats, a friend of mine installed hi flow cats and still had a check engine light for the rear O2 sensors. i would recommend ordering from brenspeed. the kooks system is very good, nice choice!!

06RedfireGT · January 28th, 2008, 12:49 PM

You won't need a tune, but ti wouldn't be a bad idea to get one. Brenspeed and Bamachips are both good places to get tunes.

american muscle · January 28th, 2008, 09:49 PM

Thanks for all the advice. Sounds like I should order from Brenspeed. Acehogg69, I'm in Marietta, a small town about 75 miles southeast of columbus, right on the Ohio river. You know of any good performance shops or car shows in OH?

06VistaGT · January 28th, 2008, 10:03 PM

SCT is the most supported in my area as far as mustangs go and supported by all the online mustang places I shop at. I guess you probably won't need a tune for the LTs, but with the high flow catts...they may trigger a check engine light. Brenspeed has been good to me so far, great service and help.

american muscle · January 28th, 2008, 10:14 PM

Not to change gears here but should I update my throttle body and add delete plates if Im going to add a supercharger down the road?

prodrifterx · January 28th, 2008, 10:22 PM

depends what type supercharger.....magnacharger/whipple/kenne bell--is there one yet dont bother because they replace the intake manifold. if you go with procharger or paxton or vortech then the delete plates are a good idea....throttle body is a definiteyea.

american muscle · January 28th, 2008, 10:28 PM

Im probably going with a centri, probably procharger or paxton. Im new to the FI game so im still doing my research.

JonCo · January 28th, 2008, 11:21 PM

Originally Posted by american muscle

Im probably going with a centri, probably procharger or paxton. Im new to the FI game so im still doing my research.

I'm in the same boat. I'm leaning more towards the Procharger HO. But I'd take a Paxton 2200 any day also. I'm just getting a much better deal on the procharger. I like how both use the air to air intercooler. my .02

acehogg69 · January 29th, 2008, 08:43 AM

I am not sure of any in Ohio when I get up this w/e and check around and get back to you. Yeah I know where that is. We will have to get some other guys together and hit the track this spring.

Trick Tuners · January 29th, 2008, 10:52 AM

You NEED a tune with LTs. The extra exhaust scavenging will lean it out.

06RedfireGT · January 29th, 2008, 08:47 PM

Originally Posted by prodrifterx

depends what type supercharger.....magnacharger/whipple/kenne bell--is there one yet dont bother because they replace the intake manifold. if you go with procharger or paxton or vortech then the delete plates are a good idea....throttle body is a definiteyea.

delete plates = yes for centri blower, no for twin screw/roots

throttle body = no, almost everybody that has one has had problems with them and the stock piece is fine for the amout of horsepower you will be making.

prodrifterx · January 29th, 2008, 08:54 PM

i didnt know that problems existed with aftermarket ones.....unless its that the stock piece flows very well.

06RedfireGT · January 29th, 2008, 09:40 PM

The stock piece is fine until like 600hp. The aftermarket ones aren't worth it.

american muscle · January 29th, 2008, 10:53 PM

Sounds like a plan acehogg. I should have a few mods bolted on by spring and would love to see what kinda numbers my ride will put down. I dont want to get too crazy with the hp. Im looking at staying around 500hp. Something fun to play around with the ricers around town but still driveable on the street.

January 27th, 2008, 10:19 PM	#1
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Lt Header Question Im looking at ordering the kooks 1 5/8" LT's with 2.5" catted x. Will I need a tune after installing the long tubes. I was reading on another thread by modern muscle about all the problems he was having with his tunes. If I need one what should I get and were should I order it from. Also does anybody know of any good performance shops around southern ohio?

January 27th, 2008, 10:24 PM	#2
06VistaGT Hardcore Enthusiast 2006 Mustang GT Join Date: Oct 2007 Location: Fayetteville, NC Posts: 1,874 iTrader: 0 reviews	You would need a tune, I bought my Kooks from Lethalperformance.com, but Brenspeed sells them too. Actually, got my tune for them and my CAI from Brenspeed. I had the check engine light come on once, but a quick call to Brenspeed and they emailed me an adjusted tune for free. No issues since, had them on for almost 2yrs now. __________________ Dyno vid: http://youtu.be/TkxUrW-mpBw

January 27th, 2008, 10:53 PM	#4
Jucostud booooost'd 2007 Mustang Join Date: Nov 2006 Location: drink'n ur kool-aid Posts: 7,043 iTrader: 0 reviews	I have the sct xcal 3 and love it. All the performance shops around me use sct also. They are both supposed to be pretty good though. I would say go with the sct, but that's just because i have one. You should buy it from brenspeed. __________________ Jucostud's Official Build Thread 1988 LX HATCH 5.0 - FOR SALE $5,000 OBO 2007 vortech gt - SOLD! Looking for next project

January 28th, 2008, 11:50 AM	#5
acehogg69 Hardcore Enthusiast 06 GT with bolt ons I sucked Join Date: Oct 2006 Location: Cheese country!! aka WI Posts: 1,090 iTrader: 0 reviews	AM what part of Ohio ya in? Check out Brenspeed. He's in northern Indiana. He would probably cut ya a good deal on the exhaust tuner and a CAI if u don't have one. I am moving back to Cincy in a few days. __________________ Kyle Busch Haters Club!! Member Uno! Tony wrote "Blowers blow, turbos suck, and nitrous rules!!! lol " Borla cattless L/T's topped with Flowmasters , Roush short throw, JLT2 CAI w/ X-CAL2 from Brenspeed, Bullit 18X9 and 18X10 deep dish.

January 28th, 2008, 12:21 PM	#7
onederful100 Hardcore Enthusiast 2007 GT 2000 GT Join Date: Jun 2007 Location: Honolulu, HI Posts: 1,890 iTrader: 0 reviews	you may need a tune for the hi flow cats, a friend of mine installed hi flow cats and still had a check engine light for the rear O2 sensors. i would recommend ordering from brenspeed. the kooks system is very good, nice choice!! __________________ 2007 GT 5spd 2000 GT 5spd whipple crew member 2-Stang Crew My Car

January 27th, 2008, 10:34 PM	#3
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Is there much difference between the SCT and the Diablosport? Which is better/easier to work with?

January 28th, 2008, 12:49 PM	#8
06RedfireGT One Man Wolf Pack 2006 Mustang GT 13ish....maybe Join Date: Aug 2006 Location: Regulatin On Some OGs Posts: 22,484 iTrader: 2 reviews	You won't need a tune, but ti wouldn't be a bad idea to get one. Brenspeed and Bamachips are both good places to get tunes. __________________ ΜΟΛΩΝ ΛΑΒΕ

January 28th, 2008, 09:49 PM	#9
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Thanks for all the advice. Sounds like I should order from Brenspeed. Acehogg69, I'm in Marietta, a small town about 75 miles southeast of columbus, right on the Ohio river. You know of any good performance shops or car shows in OH?

January 28th, 2008, 10:03 PM	#10
06VistaGT Hardcore Enthusiast 2006 Mustang GT Join Date: Oct 2007 Location: Fayetteville, NC Posts: 1,874 iTrader: 0 reviews	SCT is the most supported in my area as far as mustangs go and supported by all the online mustang places I shop at. I guess you probably won't need a tune for the LTs, but with the high flow catts...they may trigger a check engine light. Brenspeed has been good to me so far, great service and help. __________________ Dyno vid: http://youtu.be/TkxUrW-mpBw

January 28th, 2008, 10:14 PM	#11
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Not to change gears here but should I update my throttle body and add delete plates if Im going to add a supercharger down the road?

January 28th, 2008, 10:22 PM	#12
prodrifterx Enthusiast Join Date: Sep 2007 Location: Pasadena, MD Posts: 748 iTrader: 0 reviews	depends what type supercharger.....magnacharger/whipple/kenne bell--is there one yet dont bother because they replace the intake manifold. if you go with procharger or paxton or vortech then the delete plates are a good idea....throttle body is a definiteyea.

January 28th, 2008, 10:28 PM	#13
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Im probably going with a centri, probably procharger or paxton. Im new to the FI game so im still doing my research.

January 29th, 2008, 08:43 AM	#15
acehogg69 Hardcore Enthusiast 06 GT with bolt ons I sucked Join Date: Oct 2006 Location: Cheese country!! aka WI Posts: 1,090 iTrader: 0 reviews	I am not sure of any in Ohio when I get up this w/e and check around and get back to you. Yeah I know where that is. We will have to get some other guys together and hit the track this spring. __________________ Kyle Busch Haters Club!! Member Uno! Tony wrote "Blowers blow, turbos suck, and nitrous rules!!! lol " Borla cattless L/T's topped with Flowmasters , Roush short throw, JLT2 CAI w/ X-CAL2 from Brenspeed, Bullit 18X9 and 18X10 deep dish.

January 29th, 2008, 10:52 AM	#16
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	You NEED a tune with LTs. The extra exhaust scavenging will lean it out. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

January 29th, 2008, 08:54 PM	#18
prodrifterx Enthusiast Join Date: Sep 2007 Location: Pasadena, MD Posts: 748 iTrader: 0 reviews	i didnt know that problems existed with aftermarket ones.....unless its that the stock piece flows very well.

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January 29th, 2008, 09:40 PM	#19
06RedfireGT One Man Wolf Pack 2006 Mustang GT 13ish....maybe Join Date: Aug 2006 Location: Regulatin On Some OGs Posts: 22,484 iTrader: 2 reviews	The stock piece is fine until like 600hp. The aftermarket ones aren't worth it. __________________ ΜΟΛΩΝ ΛΑΒΕ

January 29th, 2008, 10:53 PM	#20
american muscle Regular 2007 GT Join Date: May 2007 Location: Ohio Posts: 54 iTrader: 0 reviews	Sounds like a plan acehogg. I should have a few mods bolted on by spring and would love to see what kinda numbers my ride will put down. I dont want to get too crazy with the hp. Im looking at staying around 500hp. Something fun to play around with the ricers around town but still driveable on the street.

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