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Asking $15,000


99 Cadillac STS Modifications

Car looks and acts 100% stock. Everything works including a/c. True sleeper. High 10’s in qtr. mile

Engine Mods

Block has been timecerted

Darton sleeved

ARP studs

Arias pistons, springs & retainers

Eagle rods

Ported heads

Ported throttle body and intake

Cometic head gaskets

60 lb/hr injectors

Aluminum fuel rails

Braided Teflon fuel lines and fittings

Holley 950 standalone engine computer

Transmission Mods

Custom limited slip differential (no torque-steer at all)

Custom built trany (good to 1000hp)

Custom torque converter

PCS fully programmable computer for 4T80E

Custom trans cooler/fan

Custom paddle shifter on steering wheel


Custom built 70mm

Scavenge pump for oil return to pan

Turbosmart waste gate

Raptor blow off valve

Treadstone dual intercooler

Additional Mods

255 Walboro pump

Aeromotive fuel pressure regulator

Wide band

Greddy Profec-B boost controller in dash

Burns stainless exhaust pre cat

Corsa catback exhaust

Electric exhaust cutout

Powerstop slotted rotors w/Hawk racing pads




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Hi Bruce. Been a while since I have been on the forum. I now have a 2011 V Coupe which of course I have built to over 700 at the crank and 600 at the wheels on E-85 as it is now a flex fuel car. The STS has been in moth balls so I decided to sell her.




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