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This is my 2007 Corvette Z06:

This car is bone stock, having come out of the box with everything I want.
This is my 2002 Camaro SS 35th Anniversary Edition:

Here is a list of the performance modifications I have had done:
Reinforced panhard bar - modified by welding a 1/8" steel plate to box the arms and reinforce the bar for increased rigidity and then black powder coated. SLP also installs new polyurethane bushings to help decrease deflection under load and create more control and stability. Designed for all forms of racing, from drag racing to autoX.
Strut-Tower Brace - constructed with flame cut 1/4" mild steel plate and 1-1/4", 0.095 wall thickness mild steel tubing. Shipped with a black powder coat finish and complete with mounting hardware.
Bolt-on subframe connectors - constructed of heavy-duty steel box tubing and comes with a gloss-black, powder coated finish. They are constructed of 2" X 2", 1" X 1" and 2" X 3" 14 gauge steel tube and 1/4" steel plate.
Mass Air Flow Sensor - lightweight (1 lb. less than stock) composite MAF has a 13% larger diameter than stock (85 mm vs. 75 mm) and will flow 90 CFM more than stock. It flows enough air for engines up to 600 hp.
Cylinder Head and Cam Package - precision CNC-ported chambers and ports ensure maximum flow, velocity, and swirl. Manley stainless steel 2.020" intake/1.575" exhaust valves feature a high-performace multi-angle valve job. Milled 63.5cc combustion chambers raise CR to 10.7:1. Heads are assembled with all new hardware including SLP titanium valve-spring retainers, SLP high performance valve springs, and GM valve seals and keepers. The camshaft specs are:
intake...0.576" valve lift, 234* duration at 0.050
exhaust...0.571" valve lift, 228* duration at 0.050
centerline - 112*, lobe separation - 113*
Headers, 1-3/4" tuned/long tube 1998-02 off-road - for those fbody owners who wish to remove their factory EGR valve (1998-2000 models only) and air-pump assembly. They are functionally identical to the original long tubes, but lack the stock emissions-equipment provisions. They feature 0.055" wall thickness 409 stainless steel, are mandrel bent to maximize flow, use Jet-Hot's polished aluminum-ceramic thermal barrier coating (interior and exterior surfaces) to keep heat in, exhaust velocity up, and under hood temps. down. They feature 1-3/4" primary tubes flowing into a 3" 4-into-1 collector.
Catalytic converters, high-flow (pair) - designed for low flow restriction and compact size.
Loud Mouth exhaust system - employs a specially designed resonator instead of a traditional muffler. Features mandrel-bent 3" intermediate pipes and are constructed from 409(intermediate) and 304 (tailpipes and tips) stainless steel.
Bellow, smooth - a single rib design allows adequate flex while posing minimal restriction. Constructed of high-quality fiberglass-reinforced silicone.
Rear-axle assembly 3.73 12-bolt (ABS/TCS) - blueprinted and hand-built to SLP specifications by the pros at Moser Engineering, this 8.875" 12-bolt unit uses the strongest, highest quality parts available. Each assembly comes with custom 33-spline allow axles (complete with wheel studs), an Eaton Posi center section, a performance aluminum cover, and a 1350-style driveshaft yoke. The axles are retained with pressed-on roller bearings, seals (not c-clips), and bearing plates.
Torque Converter, 4L60E (3300-3500) - this 245 mm lock-up torque converter is custom built to SLP design specs. and is fully balanced, incorporates carbon-ceramic clutch materials and an oversized roller clutch for strength and durability.
Heavy duty driveshaft loop - the 1/4" thick loop is a single piece securely welded to the precision formed attaching member. Powder coated black with an embossed, stainless steel SLP logo badge.
High-capacity radiator - features almost 50% additional core surface area, yet have an OEM appearance and accepts all factor sensors and fittings.
Thermostat, 160° - replaces the factory 195° unit.
Control Arms, lower reinforced - fully boxed control arms are modified by welding 1 1/8" steel plate to box the arms and reinforced the bar for increased rigidity and then black powder coated.
Heavy duty adjustable torque arm - heavy duty tubular torque arm is equipped with high strength rod ends and a low deflection polyurethane front bushing, and virtually eliminates flex and wheel hop. An adjustable lower rod end makes it easy to fine-tune pinion angle for improved traction on any road surface.
Timing Chain, double roller - offers greatly enhanced strength and accuracy compared with the stock piece and even allows for timing adjustments (advance or retard) od up to 8 degrees. The set contains an adjustable, nine-keyway nitrated crankshaft sprocket, a double-row chain, a nitrated camshaft sprocket, two oil-pump-spacer plates.
LS1/LS6 heavy-duty oil pump - a ported and blueprinted pump that is virtually bulletproof under even the most severe racing conditions. It's an ideal compliment to the double roller timing chain.
Pushrods, LS1 Chrome Moly (set of 16) - Manley 5/16" chrome moly pushrods are made from seamless 4130 chrome moly (NASCAR-quality 0.080" wall), stiffer than stock steel for superior high-rpm control, slightly longer than stock (7.35" vs. 7.32") for use with SLP's smaller-base-circle cams and are perfect for any high-rpm (6000+) application.
Chassis-Dyno testing - boasts a custom-built ventilation system capable of supplying 60,000 CFM of directional fresh air and exhaust.
PCM tuning - recalibrate speedometer, remove speed limiter, remove torque reduction, increase shift firmness, raise rev limiter to 6500, raise shift points, adjust cooling fan activation points, deactivate EGR, deactivate air pump, install SLP custom spark advance, tune fuel mapping.
B&M 24K GVW Supercooler
TCI cast aluminum deep pan
There are also some appearance and audio system modifications, but they are less important.

This car is bone stock, having come out of the box with everything I want.
This is my 2002 Camaro SS 35th Anniversary Edition:

Here is a list of the performance modifications I have had done:
Reinforced panhard bar - modified by welding a 1/8" steel plate to box the arms and reinforce the bar for increased rigidity and then black powder coated. SLP also installs new polyurethane bushings to help decrease deflection under load and create more control and stability. Designed for all forms of racing, from drag racing to autoX.
Strut-Tower Brace - constructed with flame cut 1/4" mild steel plate and 1-1/4", 0.095 wall thickness mild steel tubing. Shipped with a black powder coat finish and complete with mounting hardware.
Bolt-on subframe connectors - constructed of heavy-duty steel box tubing and comes with a gloss-black, powder coated finish. They are constructed of 2" X 2", 1" X 1" and 2" X 3" 14 gauge steel tube and 1/4" steel plate.
Mass Air Flow Sensor - lightweight (1 lb. less than stock) composite MAF has a 13% larger diameter than stock (85 mm vs. 75 mm) and will flow 90 CFM more than stock. It flows enough air for engines up to 600 hp.
Cylinder Head and Cam Package - precision CNC-ported chambers and ports ensure maximum flow, velocity, and swirl. Manley stainless steel 2.020" intake/1.575" exhaust valves feature a high-performace multi-angle valve job. Milled 63.5cc combustion chambers raise CR to 10.7:1. Heads are assembled with all new hardware including SLP titanium valve-spring retainers, SLP high performance valve springs, and GM valve seals and keepers. The camshaft specs are:
intake...0.576" valve lift, 234* duration at 0.050
exhaust...0.571" valve lift, 228* duration at 0.050
centerline - 112*, lobe separation - 113*
Headers, 1-3/4" tuned/long tube 1998-02 off-road - for those fbody owners who wish to remove their factory EGR valve (1998-2000 models only) and air-pump assembly. They are functionally identical to the original long tubes, but lack the stock emissions-equipment provisions. They feature 0.055" wall thickness 409 stainless steel, are mandrel bent to maximize flow, use Jet-Hot's polished aluminum-ceramic thermal barrier coating (interior and exterior surfaces) to keep heat in, exhaust velocity up, and under hood temps. down. They feature 1-3/4" primary tubes flowing into a 3" 4-into-1 collector.
Catalytic converters, high-flow (pair) - designed for low flow restriction and compact size.
Loud Mouth exhaust system - employs a specially designed resonator instead of a traditional muffler. Features mandrel-bent 3" intermediate pipes and are constructed from 409(intermediate) and 304 (tailpipes and tips) stainless steel.
Bellow, smooth - a single rib design allows adequate flex while posing minimal restriction. Constructed of high-quality fiberglass-reinforced silicone.
Rear-axle assembly 3.73 12-bolt (ABS/TCS) - blueprinted and hand-built to SLP specifications by the pros at Moser Engineering, this 8.875" 12-bolt unit uses the strongest, highest quality parts available. Each assembly comes with custom 33-spline allow axles (complete with wheel studs), an Eaton Posi center section, a performance aluminum cover, and a 1350-style driveshaft yoke. The axles are retained with pressed-on roller bearings, seals (not c-clips), and bearing plates.
Torque Converter, 4L60E (3300-3500) - this 245 mm lock-up torque converter is custom built to SLP design specs. and is fully balanced, incorporates carbon-ceramic clutch materials and an oversized roller clutch for strength and durability.
Heavy duty driveshaft loop - the 1/4" thick loop is a single piece securely welded to the precision formed attaching member. Powder coated black with an embossed, stainless steel SLP logo badge.
High-capacity radiator - features almost 50% additional core surface area, yet have an OEM appearance and accepts all factor sensors and fittings.
Thermostat, 160° - replaces the factory 195° unit.
Control Arms, lower reinforced - fully boxed control arms are modified by welding 1 1/8" steel plate to box the arms and reinforced the bar for increased rigidity and then black powder coated.
Heavy duty adjustable torque arm - heavy duty tubular torque arm is equipped with high strength rod ends and a low deflection polyurethane front bushing, and virtually eliminates flex and wheel hop. An adjustable lower rod end makes it easy to fine-tune pinion angle for improved traction on any road surface.
Timing Chain, double roller - offers greatly enhanced strength and accuracy compared with the stock piece and even allows for timing adjustments (advance or retard) od up to 8 degrees. The set contains an adjustable, nine-keyway nitrated crankshaft sprocket, a double-row chain, a nitrated camshaft sprocket, two oil-pump-spacer plates.
LS1/LS6 heavy-duty oil pump - a ported and blueprinted pump that is virtually bulletproof under even the most severe racing conditions. It's an ideal compliment to the double roller timing chain.
Pushrods, LS1 Chrome Moly (set of 16) - Manley 5/16" chrome moly pushrods are made from seamless 4130 chrome moly (NASCAR-quality 0.080" wall), stiffer than stock steel for superior high-rpm control, slightly longer than stock (7.35" vs. 7.32") for use with SLP's smaller-base-circle cams and are perfect for any high-rpm (6000+) application.
Chassis-Dyno testing - boasts a custom-built ventilation system capable of supplying 60,000 CFM of directional fresh air and exhaust.
PCM tuning - recalibrate speedometer, remove speed limiter, remove torque reduction, increase shift firmness, raise rev limiter to 6500, raise shift points, adjust cooling fan activation points, deactivate EGR, deactivate air pump, install SLP custom spark advance, tune fuel mapping.
B&M 24K GVW Supercooler
TCI cast aluminum deep pan
There are also some appearance and audio system modifications, but they are less important.

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