Hello I'm a proud new owner of a 1991 LS400, and I've been itching to up the performance. I've been doing alot of serching and I can't seem to find any sites with REAL PPERFORMANCE parts. so far I've just been able to find bodykits, lowering springs and universal junk. Do any of you know where I could find some site that maybe deal specificly with early 90s LS400s? I like parts such as high flow cats, exhaust systems, headers, ECU upgrades, and possibly forced induction. Any help would be greatyly appreciated. thanks.