Headers

97SierraStepSde · 10-02-2007, 09:55 PM

Alright heres a more debatable preference question for everyone. So I have a 00 Silverado 4.8 for those who remember me. So I've got a 40 and Im lookin to do headers and cats go bye bye

So: Shortys with a straight Y-Pipe or Long Tubes? All the input I can get would be much obliged

Thanks everyone

436'd skylark · 10-03-2007, 12:36 PM

if you loase the cats your check engine will come on almost immediatly. You are not goiing to "feel" any difference without them. if you live in NY, it'll never pass the OBDII inspection.

scottie · 10-03-2007, 01:35 PM

long tube and true duals for performance... shorties are more of fancy replacement manifolds, but like skylark mentioned, long tube will not pass inspection depending on where you live due to the no 02 sensor outlet. shorties will generally pass inspetcion, though

97SierraStepSde · 10-03-2007, 05:14 PM

yeah see I talked 2 my dad about stuff like that. I live in Arizona so its not like were the cleanest state there is haha but we're actually not too polluted. But I figured if I get the long tubes and put the 1 & 2 sensors in it and let 3 & 4 get clean o2 it should be fine right?

97SierraStepSde · 10-03-2007, 05:14 PM

plus it'll still change the sound right?

436'd skylark · 10-03-2007, 06:59 PM

The problem isn't mounting the sensors. It will throw catalyst ineffeciency codes almost right away, since there will be no catalyst action. Headers really are not going to make it sound different either,

97SierraStepSde · 10-03-2007, 07:03 PM

so all in all just spend money on some decent shortys, wrap em and leave my cats how they are?

436'd skylark · 10-03-2007, 07:28 PM

I would say headers wouldn't be worth it the time or cost. your not going to feel a difference other than your wallet being lighter. unless you plan on serious upgrades in the future.

97SierraStepSde · 10-03-2007, 07:30 PM

nothing real serious.. program this.. intake that.. maybe a manifold down the ways and then in a couple yrs a pro charger.. So headers completely non essential?

gmctrucks · 10-04-2007, 07:14 AM

Shorty headers with a good Y pipe a new muffler will be the best my brother has a 5.3 he true dueled it with long tube headers and lost low end plus he had to place cat elimators so that the truck would run. I have seen on Ebay some seller I think it's S&S sells stainless headers at a good price and there good one's according to the feedback people have left him. Get your engine tuned with someone that can do it using there lap top he also changed out the cam and installed a stall converter and runs slicks at the track with 10'' wheels he say's that it hooks up real good with the gears he's running. Good luck!

10-02-2007, 09:55 PM	#1
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	Headers Alright heres a more debatable preference question for everyone. So I have a 00 Silverado 4.8 for those who remember me. So I've got a 40 and Im lookin to do headers and cats go bye bye So: Shortys with a straight Y-Pipe or Long Tubes? All the input I can get would be much obliged Thanks everyone __________________ Ride Til I Die

10-03-2007, 12:36 PM	#2
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	if you loase the cats your check engine will come on almost immediatly. You are not goiing to "feel" any difference without them. if you live in NY, it'll never pass the OBDII inspection. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

10-03-2007, 01:35 PM	#3
scottie Senior Member Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON Posts: 644	long tube and true duals for performance... shorties are more of fancy replacement manifolds, but like skylark mentioned, long tube will not pass inspection depending on where you live due to the no 02 sensor outlet. shorties will generally pass inspetcion, though __________________ im a straight shooter with upper management written all over me

10-03-2007, 05:14 PM	#4
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	yeah see I talked 2 my dad about stuff like that. I live in Arizona so its not like were the cleanest state there is haha but we're actually not too polluted. But I figured if I get the long tubes and put the 1 & 2 sensors in it and let 3 & 4 get clean o2 it should be fine right? __________________ Ride Til I Die

10-03-2007, 05:14 PM	#5
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	plus it'll still change the sound right? __________________ Ride Til I Die

10-03-2007, 06:59 PM	#6
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	The problem isn't mounting the sensors. It will throw catalyst ineffeciency codes almost right away, since there will be no catalyst action. Headers really are not going to make it sound different either, __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

10-03-2007, 07:03 PM	#7
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	so all in all just spend money on some decent shortys, wrap em and leave my cats how they are? __________________ Ride Til I Die

10-03-2007, 07:28 PM	#8
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 620	I would say headers wouldn't be worth it the time or cost. your not going to feel a difference other than your wallet being lighter. unless you plan on serious upgrades in the future. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

10-03-2007, 07:30 PM	#9
97SierraStepSde Senior Member Join Date: Nov 2006 Posts: 106	nothing real serious.. program this.. intake that.. maybe a manifold down the ways and then in a couple yrs a pro charger.. So headers completely non essential? __________________ Ride Til I Die

10-04-2007, 07:14 AM	#10
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 1,606	Shorty headers with a good Y pipe a new muffler will be the best my brother has a 5.3 he true dueled it with long tube headers and lost low end plus he had to place cat elimators so that the truck would run. I have seen on Ebay some seller I think it's S&S sells stainless headers at a good price and there good one's according to the feedback people have left him. Get your engine tuned with someone that can do it using there lap top he also changed out the cam and installed a stall converter and runs slicks at the track with 10'' wheels he say's that it hooks up real good with the gears he's running. Good luck!

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