345hp Option
Peace,
Craig.

The dual-dual is a very well flowing cat-back, why do you think people are always buying/selling them? They may not flow the best but they do flow well.
And the lid, waaaay better then the stock baffle set-up.
So yes, I bet you see more hp's on an engine dyno or chasis dyno. To know the exact amount you would need to have the parts swapped out on the same car, same day, same shop.
Peace,
Craig.
From the JRP's FAQ on THIS site:
WHEN COMPARING CARS OF THE SAME YEAR AND TRANNY AN LS1 IS AN LS1 IS AN LS1 IS AN LS1 IS AN LS1 SO STOP WITH THE PETTY BULLSHIT..
https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html
Rest my case.....
From the JRP's FAQ on THIS site:
Heres the link.....
https://ls1tech.com/forums/showthread.php?t=213148
Rest my case.....
Hell, Tony (Nine Ball) had a 35th Anniv. SS, BONE stock it did 321rwhp (M6) while most 01-02 M6 cars did 310rwhp.
So, when they say performance package it means the standard option for the ram air cars, not the other options SLP offered. A lid and a cat-back will help period, otherwise why do we buy them?
Peace,
Craig.
The Best V8 Stories One Small Block at Time
Crager is right though, lid and catback will show more ponies than just a stock LS1.
Our A4 SS put down 323 off the lot (with the 345 option).
But that was a long time ago...

Life is meant to be lived, and cars are meant to be driven. Can't we all agree that "SS" stands for "Stock Sucks!".
Last edited by Azrael; Dec 13, 2006 at 06:13 PM.
And there will be a few surprises!
The SLP badge was never put on a production car, they are all owner-added.






thanx man sweet ride love the colors 