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I've done a 2 qt. trans fluid change w/ T-IV fluid. How do I completely change out the 8.7 qts of fluid? I know the fluid has never been completely changed. I have 179,000 mi. I plan on purchasing & installing Lexus rebuilt 2800 rpm performance converter in the future. Should I just change...

I've been researching headers for my 1994 SC400 1UZ-FE. I've seen rushimports set. Nice, but are they the most efficient? They are piped #1 & #3 and #5 & #7 together. Isn't #1 & #5 and #3 & #7 a better configiration? What are my alternatives? I know I'm limited with space requirements and...

Short of having a dynomometer and a 1/8th mi. track in my backyard, what is the best tool for monitoring the performance upgrades on my SC400? I bought my car on Oct. 29, 2004. I've changed all the fluids and filters, complete tune-up, fuel and AC filter left. RMM sport intake installed. Still...

Repair manual written in English covers maintenance procedures for the engine, chassis, body, electrical system, and more, clearly explained and illustrated. My 3 volume set inc. ship was $260 US, $50 more for electrical for the 1994 SC400. Call Lexus at 1-800-622-2033 and they will hook you up!

Been working on my new, 1 month old, 1994 SC400. Replaced trans fluid (T-IV), oil & filter (Valvoline max life syn. & K & N), diff. oil, installed RMM Sport intake. Next weekend - new plugs (Bosch platinum +4), OEM distributer caps & rotors). My question - 10 yr old plug wires look...