Ok guys a buddy of mind suggested a Pulley upgrade on the SC. Any suggestions on a good brand/size etc?

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3.5" pulley. You can use a press on or a MPS if you think you will be changing sizes again. Intense racing and ZZ performance both sell them. You will need access to a pulley puller.

Ok coo. What kind of performance improvements can i expect with that size pulley? and how much if you got a rough guesstimate.

Pulley Boys - GMSII

performance boosts increase depending on other mods... dropping should be a noticable difference tho

Figure a rough estimate of 10 to 15 HP depending on how well the engine does. Enough that you should feel a improvement.

Thanks for the help.

good to have supporting mods too

Oh definitely. Im in the process of opening up rest of exhaust now(hi flo cat). Have already upgraded mufflers. Ive got a 180 degree thermostat in the mail. And I'm told since im not going past a 3.5" pully I shouldnt have to worry about anything else. Let me know if im leaving something out. Have already scanned for KR and am currently sitting at a very reassuring 0. But im new to the pully game so again let me kno if im missing something.

You will want to upgrade your intake. Adding a shift kit will help, as will a performance tune.

Ok being relatively new im a little foggy on some of these mods. Im assuming the performance tune is done via the PCM. What kinda price tag can i expect and where would i have it done? The shift kit, what exactly is it, is it asimple install, and again whats the common price tag?