SLP Performance Pac
SLP Performance Pac What can be expected to the rear wheels from an 00 Z with an SLP 400hp Performance Pac? car is an m6 and is otherwise stock. the package consists of headers, ls6 intake, 1.85 rockers, power programmer 160 t-stat, slp cold air induction, i think that about sums it up...
Here's my experience with SLP parts on stock LS1.
Air lid: 12 rwhp
Coupler: 0-1 rwhp
Ram air scoop: 0 rwhp when static (worth a few ponies when moving)
Loudmouth or Dual Dual catback: 8-10 rwhp
Programming with 160 stat: 5-10 rwhp
LS6 intake: 5-7 rwhp on stock motor
1.85 rockers: 6-8 rwhp (if they're still available)
85mm MAF: 0 rwhp on stock motor
UD pulley: 7-8 rwhp
Y-pipe: 0-1 rwhp
LT Headers: 15-18 rwhp (when tuned)
Air lid: 12 rwhp
Coupler: 0-1 rwhp
Ram air scoop: 0 rwhp when static (worth a few ponies when moving)
Loudmouth or Dual Dual catback: 8-10 rwhp
Programming with 160 stat: 5-10 rwhp
LS6 intake: 5-7 rwhp on stock motor
1.85 rockers: 6-8 rwhp (if they're still available)
85mm MAF: 0 rwhp on stock motor
UD pulley: 7-8 rwhp
Y-pipe: 0-1 rwhp
LT Headers: 15-18 rwhp (when tuned)
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
i forgot to add this car has a loudmouth and will be running a catted y-pipe with the headers, plus they guy plans on lowering it and it has the stock RS bodykit. but i was just wondering if he would actually hit 400rwhp with this package...
TECH Enthusiast
Joined: Nov 2004
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From: Tampa FL
Originally Posted by spy2520
i forgot to add this car has a loudmouth and will be running a catted y-pipe with the headers, plus they guy plans on lowering it and it has the stock RS bodykit. but i was just wondering if he would actually hit 400rwhp with this package...
Um....no.
Typically with those mods most see around 335 at the rear wheels. the 400 HP is supposed to be at the crank with those kits. You won't see 400 HP at the rear tires unless you change the cam at least and usualy heads and cam.
i tried to tell him that, i also tried to tell him that the biggest cam-only cars are only just above 400rwhp usually with full bolt-ons, then he insisted an ls1 only has 305hp to the flywheel so the argument ended, i didnt really feel like proving him wrong since he just experienced a tragedy in relation to another ls1 car his family owns. but he may be lurking on this board somewhere...
For reference, I know a guy who installed the SLP "500 horsepower" H/C package in his '00 Vette and dynoed 365 rwhp. About what a stock C5 Z06 will dyno. Needless to say, he was just a little disappointed. 
Originally Posted by spy2520
i forgot to add this car has a loudmouth and will be running a catted y-pipe with the headers, plus they guy plans on lowering it and it has the stock RS bodykit. ..
I just installed the slp dual dual and have been waiting pateintly for my S3 throttle body. 5 weeks!
I am gonna get it redynoed/ tuned and see the new numbers. Trending Topics
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I wouldnt even get the SLP pac. Just get everything seperate and from a different company. The SLP lid is nice. You can find better headers elsewhere. Search around and you will find better parts for your hard earned money 
i tried to explain all these issues, i just came on here to get a second opinion and make sure i was right because i dont want to tell the guy the wrong ****, but he's not going to listen either way so i guess it doesnt matter, and remember, this is no heads and cam car, mainly rockers, intake, headers...
