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SLP vs. FLP

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Old May 23, 2002 | 10:05 AM
  #21  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Navy David SS:
<strong> Last time I saw a SLP LT GP you can get them for about $800. FLP's aren't they still around $1500?
David</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The SLPs go for $849.95. That is for the headers only. You have to buy the cat y-pipe for $399.95, the install kit for $99.95. The total is $1349.85. Not to mention that SLP does not offer an off-road pipe anymore. If you have an automatic convertible f-body, you need the adapter kit for $129.95.

The FLP system is $1299... comes with cats and off-road pipes. Not to mention that the y-pipe is coated as well. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

Thanks,
Mitch
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Old May 23, 2002 | 10:29 AM
  #22  
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Default Re: SLP vs. FLP

the regular price on SLP hdrs/Y-pipe from most vendors is 799.99, cats are 379.99, install kit is 89.99. So $1270 in total.

also,T-Byrne Motorsports has 10% off on these till month's end, so you can get the whole kit for $1140 <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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Old May 24, 2002 | 12:14 AM
  #23  
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Default Re: SLP vs. FLP

I got the SLP Headers, y-pipe,cats,install kit,for $1075 on a GP. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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Old May 24, 2002 | 09:10 AM
  #24  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by DriveATransAm:
<strong>
Don't get too excited about the coating on the Y-pipe though <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> it will be a nice rustic orange color before you know it <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Not to mention the header collectors as well. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
Does anyone know if the coated Grotts and Macs are having rust problems?
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Old May 24, 2002 | 09:17 AM
  #25  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Viper:
<strong>Use aluminum tape to seal them at the clamp location and you're all set. Allow 1/2 hour of driving with smoke billowing out as the oils are burned off the tape residue from your now straight pipes.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Are you saying that you use the tape as a gasket between the flanges?
Straight pipes? What do you mean?

Derrick
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Old May 24, 2002 | 10:49 AM
  #26  
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Default Re: SLP vs. FLP

<img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> FLPs are hands down the best, but for the $ SLP ones are good, and cheeper, but if you live the <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> "Go big or stay home" <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" /> philosophy, then you what FLPs. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
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Old May 24, 2002 | 10:52 AM
  #27  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by PewterZ28:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Viper:
<strong>Use aluminum tape to seal them at the clamp location and you're all set. Allow 1/2 hour of driving with smoke billowing out as the oils are burned off the tape residue from your now straight pipes.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Are you saying that you use the tape as a gasket between the flanges?
Straight pipes? What do you mean?

Derrick</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">i think he means to wrap it around the outside. like rolling up food in tinfoil.
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Old May 24, 2002 | 06:51 PM
  #28  
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Default Re: SLP vs. FLP

Me no comprendo.
I don't see what benefit that would have. Then again, I left my brain in the gutter today so that may be the problemo. Can someone better explain this?

Muchas gracias.
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Old May 24, 2002 | 07:45 PM
  #29  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Not to mention that SLP does not offer an off-road pipe anymore. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">yes they do. According to the vendors who sell them anyway.
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Old May 24, 2002 | 08:02 PM
  #30  
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Default Re: SLP vs. FLP

Ok. What are ORP?

They are 3" pipes that connect the headers with the Y-Pipe. Any -- I mean any -- 3" exhaust pipe will work. I took my 'store' bought ORP's off and instead now I have a 3" pipe that connects the headers with the Y-pipe held on with 4 (two on each side) large clamps. It takes 5 minutes to drop the pipes to run straight off the headers. No leaks. It works. To pay $100 for 2 3"x10" pipes is a rip off.

I'll stick behind my SLP <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

David

<small>[ May 24, 2002, 08:03 PM: Message edited by: Navy David SS ]</small>
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Old May 24, 2002 | 09:39 PM
  #31  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> wouldn't O2 simms take care of this problem ??
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yeah, but the codes dont hurt anything so I just deal with them for now...

SLP no longer offers the offroad pipes but TByrne makes them and sells them... the cats are 3 inch though so there really isnt a whole lot of flow loss...

As far as power goes on the two I havent seen sufficient proof that either one is better than the other since no one wants to take 1 car and test both sets in the same conditions with all the same mods... the FLPs are definatly easier to install, I like the 3 inch Y-pipe in the SLPs, as well as the finish, but thats just me. I dont think you can really go wrong with either set... only ones I dont particularly like are the Macs. I would like to get my hands on a set of TTS and try them out though!
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Old May 24, 2002 | 09:54 PM
  #32  
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Default Re: SLP vs. FLP

I've been through this dicussion too many times, but I'll repeat. SLP headers are IMO the best headers for our cars, bar none. They have NONE of the problems of the "other" headers, and while they may take an extra hour to install, who gives a ****? One hour for no hassles is worth it in my book. Swapping out cats? Give me a break. No one does it. And if you do, you're leaking like a sieve at the clamps on the FLP's.

No offense, guys, but the only reason to not get the SLP's is if you are lowered. On a stock car, I have 4" clearance. The SLP's look like the day they were put on, even after a year in horrible weather. Can't say that about the others.

No banging, no rust, and great fit on the car. The other guys simply can't say that. And as far as power goes, they're all the same.
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Old May 25, 2002 | 12:39 AM
  #33  
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Default Re: SLP vs. FLP

Performance Parts Outlet also sells the offroad pipe for the SLP system.
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Old May 25, 2002 | 04:43 AM
  #34  
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Default Re: SLP vs. FLP

Y2K1 SS 5.0 THIS as far as the testing SLP vs FLP headers with the same mods, same conditions, same dyno I did on my 2001 SS. I gain 10rwhp with the SLP's & 21rwhp with the FLP's.

ONYXSS SLP does have problems just like anyother header out there. There have been a lot of people complaining about SLP banging, & there was a post & picture on SLP LT's where the headers rusted like crazy, worse than any FLP's I've ever seen including my own. & on a lowered car they are terrible because they hang down so low. They are not nearly what I'd call the best. <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />
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Old May 25, 2002 | 04:47 AM
  #35  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Y2K1 SS 5.0 THIS as far as the testing SLP vs FLP headers with the same mods, same conditions, same dyno I did on my 2001 SS. I gain 10rwhp with the SLP's & 21rwhp with the FLP's. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Would you mind posting the results? What were the temp / DA on the day of the tests? Also what about power under the curve? SLP headers dramatically change the powerband, so you may see 10 peak hp, but power is brought up all over the power band. I would like to personally see results... If the FLPs do in fact make more power I would probably sell more of them but I have no proof so I just dont say or use outside dynos.
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Old May 25, 2002 | 06:20 AM
  #36  
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Default Re: SLP vs. FLP

Sunset, if a set of SLP's rusted real bad, it sounds like they may have gone out uncoated. Mine looked perfect after a year of all kinds of weather as a daily driver. And if installed correctly, they don't bang. I agree they would be dangerous on a lowered car.

Here's the decision...if you're ok with 4" of clearance (I never scraped anything, including speed bumps) you avoid the daily problems that some others make you deal with. SLP separated the headers from the bottom of the car for a REASON!!! Sledge hammers, IMO, shouldn't be part of the install kit....
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Old May 25, 2002 | 09:30 AM
  #37  
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Default Re: SLP vs. FLP

I love my SLP's. They don't bang and I got ORP's at a local muffler shop for $15. I already have LS1 edit so sims are not an issue. It's a lot better than paying what some of these guys are asking for ORP's and sims.
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Old May 25, 2002 | 10:37 AM
  #38  
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Default Re: SLP vs. FLP

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Also what about power under the curve? SLP headers dramatically change the powerband, so you may see 10 peak hp, but power is brought up all over the power band. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">very true. People get so hung up on peak hp only, and disregard the whole powerband. The fact is, SLP's seem to perform just as well as others at the track, and THAT'S what really matters.

I'll take real life track results over someone's butt-o-meter or dyno chart any day.

<small>[ May 25, 2002, 10:42 AM: Message edited by: rick ]</small>
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Old May 26, 2002 | 12:51 AM
  #39  
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Default Re: SLP vs. FLP

rick, you hit the nail on the head. I'm getting so sick of dyno this and dyno that. As a tuning tool, sure. But winning races is a different game. I went 11.14 last year with the SLP's on a H/C car at 3550 lbs. Respectible, if not better than most, comparible setups. Not saying the FLP's make any LESS power, just adding that most LT's for our cars net SIMILAR gains at the track. Then it becomes a personal choice of quality, fit and finish, etc. I'm not an SLP ***** by any means, but I think they have a quality product with their LT's. And I think they did a little more homework when it came to factoring in torque twist (read as banging the underside of the car) when finalizing their design.
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