[hockeymaniak88]

i was looking at mods for an 03/04 cobra and i came down to 2 choices. the SLP performance package(intake, exhuast, pulleys, tuner, etc) or go all out and buy the best bolt ons from different companies.

1. heres the SLP set up:
http://store.summitracing.com/partde...5&autoview=sku

2. Custom list:
Billetflow 2.8" pulley
Metco idler pulley
Borla Stinger Cat Back
Bassani Offroad X-pipe
JLT Cold Air Intake
Professional Dyno tune

im pretty sure they are both around the same price.. i never had a dyno tune so if someone could tell me what to expect to pay that would help.. ive heard with the slp pack 575hp and a mid to high 11sec 1/4mile is very possible. im not too sure about my custom list but i bet it would sound sweeeeeeet Would i have to swap my IRS to support the power if it was 500-575?
any input here is appreciated!!

[mustanghelper]

now all you have to spend is about 3000 more to buy a supercharger, not included!!!!!!!

[Lances03GT]

Your not going to get over 500rwhp with just those mod's.You need to check out
these forum's http://svtperformance.com/forums/index.php

[Sa-When]

Not seeing 575rwhp out of the SLP package,Or your list.SLP used to build the SS comraos then they started building stang parts when the F-bodies died out.With the 2.80 upper and all the idlers,X-pipe and catback,and a good CAI you should be pushing 450 to 460rwhp with a good dyno tune.The tune will cost you around 250.00 but it includes 3 dyno runs,which let you see the A/F ratio which is very important with these cars..It should be around 11.8 with a upper pulley..Good luck and take it to a good shop that has a great rep..The Tune is everything..

[Snake Pliskin]

I never have been able to reconcile SLP building F body crap. Lucky for them they get to start back on it in a few more years.

[hockeymaniak88]

horsepower is to the crank NOT rwhp.. im not a fan of SLP either but i was just curious about the package because it seemed like a decent deal. im just looking to get into the mid to high 11s and have a real beastly exhaust note. do you think my own list will get me that?

[Snake Pliskin]

Originally Posted by hockeymaniak88

horsepower is to the crank NOT rwhp.. im not a fan of SLP either but i was just curious about the package because it seemed like a decent deal. im just looking to get into the mid to high 11s and have a real beastly exhaust note. do you think my own list will get me that?

I like your custom kit better. With proper driving technique and a set of sticky rubber I think you will meet your goal.

[Sa-When]

Here is my wife,s mod list..2.93 upper with all 4 idlers,Bassani x-pipe with cats,Bassani catback,LFP heat exchanger,Steeda CAI,NGK 6 plugs,Ported TB & PL,Tune by James at RWTD.=11.984@119 on a 2.0 60" time..Car put down 475rwhp & 485rwtq..

Mine 2.80 upper all 4 idlers,LFP heat exchanger,flowmaster catback,stock H-pipe.NGK 7 plugs,10 straight shot filter,Ported TB & PL,Tunes by James at RWTD 480rwhp & 490rwtq.12.005@117 on a 2.1 60"..

Like I said its all in the tune..Whatever you decide to go with good luck..

[GlennBrown]

Dyno tuning is around $450-500.
IMO, it is worth it if your mods justify it.