I have a 2003 SSEI I recently purchased. My plan is to go no smaller than a 3.6" pulley but don't know what I need to get there safely. I am going daily this car during college so I am keeping as reliable as possible but it will not see snow as I have a winter beater. It is currently in stock however my uncle has bought me a ZZP down pipe for Christmas. I have heard that the L67 engine loves exhaust mods and am thinking about purchasing the ZZP front power log but am not fully committed. I have heard that it is a good idea to run spark plugs a heat range colder than factory but don't know if they are necessary. Anything at all would help a great deal thank you for taking the time to read this.

Welcome!

Yeah, one range colder copper plug would be good. Make sure your fuel pressure is good, and going down in pulley size will be a good upgrade. Get a CAI if you want to really hear the sc whine.

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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights

I'm pretty happy with my front power log.

It was easy to install and felt like it woke up the car a little for sure.

I also have spark plugs one heat range colder and the car seems to like it. And I'm still on the stock pulley. Although that may change next year...

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2003 Pontiac Bonneville SSEi (L67) - Galaxy Silver Metallic
1996 Chevrolet Camaro (L36) - Sebring Silver

Thank you, do you have a cold air intake that you would recommend?

When you got your power log did you feel the need to get a tune I have been told that you should get one?

Welcome to the forums!

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-Car Guy Carl
"Penelope" - 2003 SLE - 247k Miles
"Sydney" - 2000 Honda S2000 - 98k miles