SLP loud mouth on a thirdgen
Supreme Member
iTrader: (1)
Joined: Jul 1999
Posts: 1,334
Likes: 1
From: Key West, Florida!
Car: 89RSconvtZZ4TPI
Engine: ZZ4TPI
Transmission: 700R4 TRIPP TRANNY
What the H E double toothpicks is an SLP Loudmouth?
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Rob P
89RSconvtZZ4TPI Edelbrock Intake
SLP Dual Cold Air Intake 1 5/8" Headers Semi-Siamesed Runners, IROC
suspension, alum shaft. Numerous mods.
92Z28convt5spd (stock)
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
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Rob P
89RSconvtZZ4TPI Edelbrock Intake
SLP Dual Cold Air Intake 1 5/8" Headers Semi-Siamesed Runners, IROC
suspension, alum shaft. Numerous mods.
92Z28convt5spd (stock)
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
Its a cat back that they make for the forth gen.I would call them and ask if they know how close of a fit it would be I dont see why they could not compair it to one of their third gen cat backs and see if it would work the only thing I can see that would be a problem is how it hooks to the cat dont know if 4th gen cars bolt up the same.
I think I'm gonna try to make my own version since I already have a 3" I pipe. I wana use my '99z28 tips too. http://www.ls1.com/ls1forum/Forum19/HTML/002462.html
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-Tas
'89 Formula WS.6
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-Tas
'89 Formula WS.6
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Exhaust Board?? 
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89 RS
STILL Looking For:
An 87 IROC-Z28 350 TPI
Yeah I have an RS, but I want an IROC-Z!!

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89 RS
STILL Looking For:
An 87 IROC-Z28 350 TPI
Yeah I have an RS, but I want an IROC-Z!!
why not just get an SLP resonator,take off ur muffler and put in a y-split pipe and bingo, since im guessing SLP loudmouth uses a SLP resonator, it would sound pretty much the same? thats what i plan on doing soon.
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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series
http://www.geocities.com/david_angel_16
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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series
http://www.geocities.com/david_angel_16
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Supreme Member
Joined: Sep 1999
Posts: 3,197
Likes: 10
From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
Normally i'd agree that this is an exhaust board question. The thing is, the exhaust board should more aptly be named the 'how do i run duals cuz 2 pipes must be better than one' board. I've seen this question raised there and i've never seen a good answer. Perhaps this board has better readers.
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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.7 @ 93.6
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.7 @ 93.6
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
Ed, you're right, since exaust is one of peoples first mods, they're alittle green. No matter how much you say there are always newbies contradicting you. The only leverage I have when I say something is my number of posts =/ and hopefully my rep. if I have one.
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-Tas
'89 Formula WS.6
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-Tas
'89 Formula WS.6
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
"Normally i'd agree that this is an exhaust board question. The thing is, the exhaust board should more aptly be named the 'how do i run duals cuz 2 pipes must be better than one' board."
Yeah, LOL!!
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89 RS
STILL Looking For:
An 87 IROC-Z28 350 TPI
Yeah I have an RS, but I want an IROC-Z!!
Yeah, LOL!!
------------------
89 RS
STILL Looking For:
An 87 IROC-Z28 350 TPI
Yeah I have an RS, but I want an IROC-Z!!
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Tas, your for duals on Third Gens too though, right?? Just asking.
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Yeah I know. I've actually heard some single exhausts that made some dual exhausts I've heard sound like ****.
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Third Gens too. Sounded like cars to me. 
[This message has been edited by IROCZTWENTYGR8 (edited October 28, 2001).]

[This message has been edited by IROCZTWENTYGR8 (edited October 28, 2001).]
Supreme Member
iTrader: (1)
Joined: Jul 2001
Posts: 4,627
Likes: 5
From: Houston Area
Car: Faster
Engine: Than
Transmission: You!
do you guys think the SLP loud mouth would sound better on a stock TPI or would it sound better on a stock LS1? I've heard it on a stock LS1 and it sounded awesome!
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1991 Z-28 350 TPI, 700r4 with B&M shiftkit, 2400 stall, B&M Console Megashifter, 4th gen power seats, MSD6A, Blaster2 Coil, Holley 58mm TB, Ram-air, MSD 8.5 super conductor wires, Flowmaster catback, Crane rollers, march pulleys, and all free mods. (Currently in body shop getting fresh paint!!) I miss her! =(
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1991 Z-28 350 TPI, 700r4 with B&M shiftkit, 2400 stall, B&M Console Megashifter, 4th gen power seats, MSD6A, Blaster2 Coil, Holley 58mm TB, Ram-air, MSD 8.5 super conductor wires, Flowmaster catback, Crane rollers, march pulleys, and all free mods. (Currently in body shop getting fresh paint!!) I miss her! =(
slp loud mouth sounds just like borla with a cheaper price tag. i would buy it if i didnt already have exhaust.
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91z28 350tpi auto, runs 14.3... aim screen name nice3rdgenz
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91z28 350tpi auto, runs 14.3... aim screen name nice3rdgenz
Member
iTrader: (1)
Joined: Feb 2001
Posts: 155
Likes: 0
From: Wisconsin
Car: 79 Monte Carlo
Engine: 406
Transmission: 2004-R
Axle/Gears: Phord 9 inch/3.90
I wouldnt exactly say the different firing order makes it sound better, what it actually does is make it much more tolerable. Put that exhaust on an LT1 or a TPI and it should sound good but you better have hearing protection handy
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
I have heard them all and still think the L98 sounds better, especially with some mods.
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
I haver heard the SLP loudmouth on a couple of LT1 cars with long tubes and it was TOO loud. Both people, once they put on the headers is looking for something quieter. So, IMO, if you are putting it on stock manifolds, and cat, go ahead, but be forewarned the loudness and resonation will get to you 
Chris
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1986 305 TPI
8.0 @88 in the 1/8
**Soon to be 355

Chris
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1986 305 TPI
8.0 @88 in the 1/8
**Soon to be 355
Exhaust can't be too loud... I think thats just a rule 
As long as you have mufflers then I wouldn't worry about getting anything quieter, just turn the music up
Brendan
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1987 IROC-Z L98,SR,EB 6085's,LPE 219/219 Cam, Crane 1.6RR, EB TPI Base, 58mm TB, Stock T5, 30lb SVO, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, Aluminum DS, 94 Disk Rear, Adjustable Prop Valve, Precision 3.73 Gears, Weld in Sub-Frame Connectors, Hotchkis LCA's, KYB Shocks/Struts, Poly Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm, Big stereo, 730SD Conversion.
To see the ROC, Check out the webpage Here

As long as you have mufflers then I wouldn't worry about getting anything quieter, just turn the music up

Brendan
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1987 IROC-Z L98,SR,EB 6085's,LPE 219/219 Cam, Crane 1.6RR, EB TPI Base, 58mm TB, Stock T5, 30lb SVO, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, Aluminum DS, 94 Disk Rear, Adjustable Prop Valve, Precision 3.73 Gears, Weld in Sub-Frame Connectors, Hotchkis LCA's, KYB Shocks/Struts, Poly Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm, Big stereo, 730SD Conversion.
To see the ROC, Check out the webpage Here
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