SLP Exhaust Gains?

04 STANG · 10-20-2004, 10:26 PM

I just installed an SLP Cat back exhaust and was trying to look up gains on the exhaust but i couldn't seem to find any. Does anyone seem to know what the gains are or where to find them? I went to the SLP web site and it had gains for the rest of the cars but not for mustangs. Also if possible the gains with the SLP catted x-pipe ans the cat back exhaust?
But the car sound incredible, best decision i made yet!!

RedSilver88 · 10-21-2004, 01:04 AM

do you have the stock h-pipe?

WaterDR · 10-21-2004, 03:28 AM

According to SLP (I have spoken to their engineers) and independant dyno results, you should expect to see 10 - 11 rwhp. That is a lot for a catback. If you add the X pipe, expect about a total of 22 - 25 rwhp. The o/r x pipe is actually less as there is not enough back pressure unless you get into a more high powered application.

04 STANG · 10-21-2004, 05:45 AM

Yes, i currently have a stock H-pipe but plan on changing it soon. Any one have any audio clips of the SLP exhaust and an SLP X-pipe catted or o/r?

bshiek · 10-21-2004, 06:25 AM

With the catback, I think you GAIN a loud exhaust!

10-11 rwhp seems high to me for just a catback.

nanaki · 10-21-2004, 07:42 AM

Quote:

Originally Posted by MT's#1Customer!

According to SLP (I have spoken to their engineers) and independant dyno results, you should expect to see 10 - 11 rwhp. That is a lot for a catback. If you add the X pipe, expect about a total of 22 - 25 rwhp. The o/r x pipe is actually less as there is not enough back pressure unless you get into a more high powered application.

that 22-25 you speak of with the x pipe. is that 22-25 for JUST the catback, or is that the combined total of the X + the catback? i got my loudmouths on a couple weeks ago. loving them. they seem to be getting better sounding as time goes by, which puts an even bigger smile on my face! just gotta get that SLP catted X and the O2 harness.

04 STANG · 10-21-2004, 11:30 AM

If they do give you hp gains then why dont they say how many horses you gain like the rest of the companies? and do one of your exhaust tips stick out farther then the other? Thanks for the help.

bshiek · 10-21-2004, 12:49 PM

Quote:

Originally Posted by 04 STANG

... and do one of your exhaust tips stick out farther then the other?

I thought the tips were adjustable? Correct me if I'm wrong, but can't you slide it further on/off the pipe to get them to line up?

EH819 · 10-21-2004, 12:50 PM

I think I remember seeing that 10 rwhp increase for a Mustang, with just the catback, and it had a blower installed.

*venom* · 10-21-2004, 12:57 PM

Go to mustangexhaust.com for some sound clips.

Stanger35thGT · 10-21-2004, 04:22 PM

let me tell you ... SLP with O/R X is fuggn LOUD!!!! not even kidding around..if you want loud, raspy, mean sound...get an X

just bought mine, havent installed it yet..but ive heard the guys car with the setup and damn, my ears hurt........

WaterDR · 10-21-2004, 05:05 PM

Quote:

Originally Posted by nanaki

that 22-25 you speak of with the x pipe. is that 22-25 for JUST the catback, or is that the combined total of the X + the catback? i got my loudmouths on a couple weeks ago. loving them. they seem to be getting better sounding as time goes by, which puts an even bigger smile on my face! just gotta get that SLP catted X and the O2 harness.

Combined for both!

Check out www.mach1registry.com as they did some dyno's on three different catbacks including the SLP. They were 4 valve motors however. If I recall, they got 10 or 12 rwhp for the SLP. MM&FF dynoed a '98 a while back with the catted X and got 22 rwhp or something close to that. Car had stock heads too.

WaterDR · 10-21-2004, 05:06 PM

Quote:

Originally Posted by bshiek

I thought the tips were adjustable? Correct me if I'm wrong, but can't you slide it further on/off the pipe to get them to line up?

They are very easy to adjust!

Mustang Tuning · 10-22-2004, 08:28 AM

Quote:

Originally Posted by bshiek

I thought the tips were adjustable? Correct me if I'm wrong, but can't you slide it further on/off the pipe to get them to line up?

The tips should be adjustable. At least enough to make them stick out the same. I have the Steeda catback and I made sure my tips stuck out as much as they could!

JAMEZ · 03-28-2005, 01:54 PM

ANYBODY KNOW WHAT THE SLP EXHAUST WEBPAGE IS :toothy9:

bshiek · 03-28-2005, 02:13 PM

http://www.slponline.com/ :thumbsup:

omegared3915 · 03-28-2005, 11:36 PM

i just purchased the slp loudmouth off road h pipe and long tube headers i am curious to know how it would sound but if i can i will try to post sound clips so everyone can hear after i am done installing only reason i have chosen the h pipe because in every test that i have seen the h pipe has given more power than the x but am curious to see if it is true :thumbsup:

10-20-2004, 10:26 PM	#1 (permalink)
04 STANG GT Join Date: Sep 2004 Location: Malvern, PA Posts: 123	SLP Exhaust Gains? I just installed an SLP Cat back exhaust and was trying to look up gains on the exhaust but i couldn't seem to find any. Does anyone seem to know what the gains are or where to find them? I went to the SLP web site and it had gains for the rest of the cars but not for mustangs. Also if possible the gains with the SLP catted x-pipe ans the cat back exhaust? But the car sound incredible, best decision i made yet!!

10-21-2004, 01:04 AM	#2 (permalink)
RedSilver88 Member Join Date: Sep 2004 Posts: 35	do you have the stock h-pipe? __________________ 98 GT 5spd -PI Swapped, Mac Prochamber, Flowmaster 40's, Steeda UDP, 180* Thermostat, K&N FIPK -Eibach Pro-kit -FRPP 3.73's, Centerforce II Clutch, Pro 5.0 Shifter, UPR Cable and Firewall Adjuster Kit

10-21-2004, 03:28 AM	#3 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,363	According to SLP (I have spoken to their engineers) and independant dyno results, you should expect to see 10 - 11 rwhp. That is a lot for a catback. If you add the X pipe, expect about a total of 22 - 25 rwhp. The o/r x pipe is actually less as there is not enough back pressure unless you get into a more high powered application. __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

10-21-2004, 06:25 AM	#5 (permalink)
bshiek Member Join Date: Sep 2004 Location: Minnesota Posts: 99	With the catback, I think you GAIN a loud exhaust! 10-11 rwhp seems high to me for just a catback. __________________ 02 GT 5 spd

10-21-2004, 12:50 PM	#9 (permalink)
EH819 Member Join Date: Sep 2004 Posts: 77	I think I remember seeing that 10 rwhp increase for a Mustang, with just the catback, and it had a blower installed. __________________ 00GT Amazon Green/Tan 5 Speed Mods Performance: K&N Air Filter, Air Silencer Removed, MAF Screen Removed, Accufab 75mm Throttle Body, C&L Upper Intake Plenum, Hooker coated Long Tube Headers and X-Pipe with cats welded in, SLP Loudmouth LM1 Catback, Steeda Tri-Ax Shifter, Mach 1 Shift Knob Exterior: 01+ Hood Scoop, Mach 1 Grill Delete, 8" Radio Antenna

10-21-2004, 05:45 AM	#4 (permalink)
04 STANG GT Join Date: Sep 2004 Location: Malvern, PA Posts: 123	Yes, i currently have a stock H-pipe but plan on changing it soon. Any one have any audio clips of the SLP exhaust and an SLP X-pipe catted or o/r?

10-21-2004, 11:30 AM	#7 (permalink)
04 STANG GT Join Date: Sep 2004 Location: Malvern, PA Posts: 123	If they do give you hp gains then why dont they say how many horses you gain like the rest of the companies? and do one of your exhaust tips stick out farther then the other? Thanks for the help.

10-21-2004, 12:57 PM	#10 (permalink)
venom Super Moderator Join Date: Sep 2004 Posts: 5,270	Go to mustangexhaust.com for some sound clips. __________________ http://www.mustangboards.com/mustang...500/ppuser/103

10-21-2004, 04:22 PM	#11 (permalink)
Stanger35thGT 35th Anniversary Join Date: Sep 2004 Location: Spring, TX Posts: 63	let me tell you ... SLP with O/R X is fuggn LOUD!!!! not even kidding around..if you want loud, raspy, mean sound...get an X just bought mine, havent installed it yet..but ive heard the guys car with the setup and damn, my ears hurt........ __________________ 1999 35th Anniversary GT

03-28-2005, 01:54 PM	#15 (permalink)
JAMEZ Junior Member Join Date: Mar 2005 Posts: 5	Slp Webpage ANYBODY KNOW WHAT THE SLP EXHAUST WEBPAGE IS :toothy9:

03-28-2005, 02:13 PM	#16 (permalink)
bshiek Member Join Date: Sep 2004 Location: Minnesota Posts: 99	http://www.slponline.com/ :thumbsup: __________________ 02 GT 5 spd

03-28-2005, 11:36 PM	#17 (permalink)
omegared3915 Member Join Date: Mar 2005 Posts: 61	i just purchased the slp loudmouth off road h pipe and long tube headers i am curious to know how it would sound but if i can i will try to post sound clips so everyone can hear after i am done installing only reason i have chosen the h pipe because in every test that i have seen the h pipe has given more power than the x but am curious to see if it is true :thumbsup:

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