suggestions for more power from my 03 N/A Bonneville

[ablebakercharlie]

Relatively new-to-me 2003 SLE.

I've done some maintenance stuff like plugs, etc. and gutted the airbox and added a K&N panel air filter. It at least sounds better!

I've read on here that the exhaust flows well (although given my experience with other GM cars I am having trouble fully believing that).

Short of installing a nitrous system or swapping on a supercharger, what can I do to get more mid-range (3000-4000 rpm) torque from this engine? I am not ready to port the heads or swap the cam...yet.

Once I decide on the plan, there will be a PCM tune.

Suggestions?

[93 SSE 4 ME]

I swapped my PCM for an Intense unit, and installed their intake as well. It woke it up nicely.

Mark

[alexcoqui]

& it is recomended to change the lower intake manifold gaskets. & while you are at it port the LIM. That with the Intake & a reprogram computer will make you happy for now. I've gotten all my upgrades from Intense & have nothing but good things to say about them. good luck.

[wake]

dont forget the headers

[SAMzGXP]

you know top swap is always a great option :D

[00Beast]

Short of installing a nitrous system or swapping on a supercharger

you know top swap is always a great option :D