First and foremost, you were on the right track with the Lid/Filter combo.
Whisper Lid and K&N Filter should be the first thing you do.
Although the Carbon Fiber model won't give you any additional gain over the regular plastic Whisper Lid, it looks damn cool!
The Flowmaster Exhaust isn't the best choice.
If you're looking for a catback thats going to sound BADASS (loud) and give you the best HP gain, take a look at the SLP 'Loudmouth' Exhaust or get a Flowtech Cutout welded in before your stock muffler (which you can cap to remain quiet and stealthy, or uncap to rumble the streets and give you maximum power). The Loudmouth runs around $300-$350 and the Flowtech Cutout costs about $35 plus the cost to weld it in (no more then $60).
The next best mod you can do to ANY automatic transmission equipped car is to upgrade the stock torque converter. Want to lite up your tires with a TAP of the throttle? Want to drop AT LEAST 5 tenths from your 1/4 mile time??? This will do it!!!!! Cars see an AVERAGE of a .4 to .5 second gain in 1/4 mile! A good torque converter for a bolt on car like yours would be a Vigilante 3200 Stall Torque Converter.
BEWARE - You WILL go through tires FAST, so a set of Nitto Drag Radials should be the next mod you concider.
Check out
www.LS1Speed.com
Give them a call and talk to either Tom Izzo or Larry and they will point you in the right direction. They have the best prices, and if they don't, they'll match it! They're always willing to help, and will do whatever it takes to keep YOU satisfied.
Any other questions, check out
www.LS1Tech.com the premier site for LS1 Enthusiasts.
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