Slp Headers... scrape The Floor??
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From: central coast, cali
Slp Headers... scrape The Floor?? I was thinking about goign with SLP everything, exhuast,cats lid and everything, becuase i hear their one of the best for ls1! or is it better to mix and match? and ive almost read that they will hit the floor, is it true? thanx guys.
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Joined: Jun 2005
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From: England
yes you can mix and match.
SLP do some good stuff and some not so good stuff. So do some research and buy what you think is best.
Pacesetter and Hooker both make headers of equiverlent performance for less money and have better clearance.
And you'll get all sorts of responses from people here:
"SLP are s@~T and expensive" from the people with the heads up there ****.
"SLP are great, make the best there is" meaning they bought SLP, probably paid too much for it, whish they didn't but feel the need to try and justify it, by persuading others to follow their mistakes so that they can feel better about it.
Stainless Works are pricey but do some nice Stainless ones, as do Kooks and QTP.
But there are loads out there, just find out the brands (from the sponsors --->) then use the search here, and read up on peoples views.
My vote goes to Pacesetter Coated for overall best value for money.
If money was no object I like Stainless Works.
SLP do some good stuff and some not so good stuff. So do some research and buy what you think is best.
Pacesetter and Hooker both make headers of equiverlent performance for less money and have better clearance.
And you'll get all sorts of responses from people here:
"SLP are s@~T and expensive" from the people with the heads up there ****.
"SLP are great, make the best there is" meaning they bought SLP, probably paid too much for it, whish they didn't but feel the need to try and justify it, by persuading others to follow their mistakes so that they can feel better about it.
Stainless Works are pricey but do some nice Stainless ones, as do Kooks and QTP.
But there are loads out there, just find out the brands (from the sponsors --->) then use the search here, and read up on peoples views.
My vote goes to Pacesetter Coated for overall best value for money.
If money was no object I like Stainless Works.
!LS1 11 Second Club
Joined: Apr 2003
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From: Miami
Originally Posted by 1fastz
I was thinking about goign with SLP everything, exhuast,cats lid and everything, becuase i hear their one of the best for ls1! or is it better to mix and match? and ive almost read that they will hit the floor, is it true? thanx guys.
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Joined: Feb 2005
Posts: 734
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From: south jersey. again
im not sure if everybody knows or not but slp stands for street legal performance. im not saying to buy from them but gm had to have a reason for using them. from what ive read on this site the problem with there headers is that they hand too low. my car is still all stock and im still trying to decide. alot of the guys here like kooks but there expensive but so is slp's stuff.my suggegstion to you is read some more and ask some of the vendors about there product, phone calls are cheaper than mistakes.you also have to ask your self how far your willing to go with the mods, smog checks and so forth and what you want to spend. this only my opinion and we all know what that equals. good luck
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Joined: Jun 2005
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From: England
Originally Posted by jam01
im not sure if everybody knows or not but slp stands for street legal performance. im not saying to buy from them but gm had to have a reason for using them.
As for GM using them, well that's probably more political and financial not because SLP are the best.
GM used them more than likely b/c they offered them the best deal on setting up the SS package 
SLP headers are crap. They make great catbacks, and they make decent pullies, and thats about where their decent product line stops. I wouldn't buy anything else from them. Buy Kooks/QTPs if you are going to spend the kind of money that SLP's cost, otherwise save the money and get Pacesetters. I've bought 2 sets of Kooks myself, right now I run a set of 1 3/4 stepped to 1 7/8, and won't run anything but stainless headers. Personal preference. I've always gotten great deals on my Kooks, but QTP are good too.
SLP headers are crap. They make great catbacks, and they make decent pullies, and thats about where their decent product line stops. I wouldn't buy anything else from them. Buy Kooks/QTPs if you are going to spend the kind of money that SLP's cost, otherwise save the money and get Pacesetters. I've bought 2 sets of Kooks myself, right now I run a set of 1 3/4 stepped to 1 7/8, and won't run anything but stainless headers. Personal preference. I've always gotten great deals on my Kooks, but QTP are good too.
Trending Topics
SLP headers flow like crap, have no clearance, and are way to expensive for all that negative stuff. Save some money, get yourself some Pacesetters, Hookers, or even Jet Hotts and be way more satisfied.
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TECH Addict
Joined: Jun 2005
Posts: 2,660
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From: England
Originally Posted by ConfusedGarage
I only gained .2 in the quarter after putting on SLP LTs, Y pipe and cats. They arent good. Im going with Kooks on the SS.
SLP catbacks rule though.
SLP catbacks rule though.
Did you get it tuned to match the better flow rate? What CATS did you fit, any other mods. What was the flow rate of the CATS and the rest of the exhaust. AF ratio.
Not to mention track conditions, weather, prep, tyres and of course driver.
There are people out there who have added blowers or turbos gained 80-120rwhp and still only managed .1-.3 tenths quicker. Does that mean ALL FI is pointless??
300bhp/ton, its been proven multiple times, with people like SouthFL.02.SS swapping from SLP headers to QTP or Kooks headers and they GAIN horsepower. Even when they swap to the EXACT SAME SIZE primaries.....now.....if you can find a reason other than the QTP/Kooks having a superior design, by all means....please share it with me.
SLP just doesn't make a top notch header system. Thats all there is to it. I'm not saying you're going to hell if you get them, you just may not get all the hp you could from your car if you do purchase them, not to mention the other negatives that accompany those headers.
SLP just doesn't make a top notch header system. Thats all there is to it. I'm not saying you're going to hell if you get them, you just may not get all the hp you could from your car if you do purchase them, not to mention the other negatives that accompany those headers.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
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From: Miami
Originally Posted by cyphur_traq
300bhp/ton, its been proven multiple times, with people like SouthFL.02.SS swapping from SLP headers to QTP or Kooks headers and they GAIN horsepower. Even when they swap to the EXACT SAME SIZE primaries.....now.....if you can find a reason other than the QTP/Kooks having a superior design, by all means....please share it with me.
SLP just doesn't make a top notch header system. Thats all there is to it. I'm not saying you're going to hell if you get them, you just may not get all the hp you could from your car if you do purchase them, not to mention the other negatives that accompany those headers.
SLP just doesn't make a top notch header system. Thats all there is to it. I'm not saying you're going to hell if you get them, you just may not get all the hp you could from your car if you do purchase them, not to mention the other negatives that accompany those headers.
Just look at the design of the SLPs compared to a set of QTPs. The SLP headers have multiple bends that even seem unnecessary and they definatly hang very low. My buddy took his off of his stock ride height 02 because they would scrape constantly on bumps in the road. I'll try to post of pic of each and you guys decide which one you think flows better. I'd personally say buy some Coated Pacesetters and call it a day or if you want stainless then go Kooks or QTP there about the same price anyways and I have heard no complaints from either.
After LS1 Edit -SLP LT's W/ Random tech cats and the SLP Y-pipe and a Borla adj cat back.. Basically, all I have is a lid and headers back. I have a slew of other bolt ons.. some susp, traction control, free mods, fans turn on @ 180*... -LS1 edit, prepping for a 160*t-stat..
SLP's metal, welds and finishes.......these will last a LONG time. Yes, SLP LT's don't flow the BEST out of the group but, IMO they are worth the $.... The Y-pipe hangs lower then the collecters. They are a bit of a pain to get in, but it's an LS1..... (I've heard that the LT1's are worse, clearance wise) I didn't want to have to worry about having to find a matching ypipe, and this came w/ the kit... That's 70% of the reason I bought them. On a stock ride height car they are fine. I've only scraped once or twice... They do not scrape the floor, I had to "ding" the fire wall to get them in w/out un-bolting the engine mounts...
They sound great too, use some locking header bolts. Prolly, Breslins -good stuff.
There is nothing wrong w/ mixing and matching, just research a part before you buy it. I bought a couple parts blindly. SLP also has a tendancy to "over write" their parts, they hype them up. Some parts are good, tho... If you want to go all SLP, more power to ya!!
SLP's metal, welds and finishes.......these will last a LONG time. Yes, SLP LT's don't flow the BEST out of the group but, IMO they are worth the $.... The Y-pipe hangs lower then the collecters. They are a bit of a pain to get in, but it's an LS1..... (I've heard that the LT1's are worse, clearance wise) I didn't want to have to worry about having to find a matching ypipe, and this came w/ the kit... That's 70% of the reason I bought them. On a stock ride height car they are fine. I've only scraped once or twice... They do not scrape the floor, I had to "ding" the fire wall to get them in w/out un-bolting the engine mounts...
They sound great too, use some locking header bolts. Prolly, Breslins -good stuff.
There is nothing wrong w/ mixing and matching, just research a part before you buy it. I bought a couple parts blindly. SLP also has a tendancy to "over write" their parts, they hype them up. Some parts are good, tho... If you want to go all SLP, more power to ya!!
Last edited by bayer-z28; Oct 13, 2005 at 01:06 PM.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by bayer-z28
After LS1 Edit -SLP LT's W/ Random tech cats and the SLP Y-pipe and a Borla adj cat back.. Basically, all I have is a lid and headers back. I have a slew of other bolt ons.. some susp, traction control, free mods, fans turn on @ 180*... -LS1 edit, prepping for a 160*t-stat..
SLP's metal, welds and finishes.......these will last a LONG time. Yes, SLP LT's don't flow the BEST out of the group but, IMO they are worth the $.... The Y-pipe hangs lower then the collecters. They are a bit of a pain to get in, but it's an LS1..... (I've heard that the LT1's are worse, clearance wise) I didn't want to have to worry about having to find a matching ypipe, and this came w/ the kit... That's 70% of the reason I bought them. On a stock ride height car they are fine. I've only scraped once or twice... They do not scrape the floor, I had to "ding" the fire wall to get them in w/out un-bolting the engine mounts...
They sound great too, use some locking header bolts. Prolly, Breslins -good stuff.
There is nothing wrong w/ mixing and matching, just research a part before you buy it. I bought a couple parts blindly. SLP also has a tendancy to "over write" their parts, they hype them up. Some parts are good, tho... If you want to go all SLP, more power to ya!!
SLP's metal, welds and finishes.......these will last a LONG time. Yes, SLP LT's don't flow the BEST out of the group but, IMO they are worth the $.... The Y-pipe hangs lower then the collecters. They are a bit of a pain to get in, but it's an LS1..... (I've heard that the LT1's are worse, clearance wise) I didn't want to have to worry about having to find a matching ypipe, and this came w/ the kit... That's 70% of the reason I bought them. On a stock ride height car they are fine. I've only scraped once or twice... They do not scrape the floor, I had to "ding" the fire wall to get them in w/out un-bolting the engine mounts...
They sound great too, use some locking header bolts. Prolly, Breslins -good stuff.
There is nothing wrong w/ mixing and matching, just research a part before you buy it. I bought a couple parts blindly. SLP also has a tendancy to "over write" their parts, they hype them up. Some parts are good, tho... If you want to go all SLP, more power to ya!!
They're a decent header for a stock internal car, no doubt. Just a pain in the *** to install, hang low, and get maxed out once a decent sized cam goes in.