GS400 makes 282whp 306wtq with bolt-ons

[JBrady]

Some may be familiar with this project. Typical stock GS400s make 230-240whp. This car has K&N cold air intake, Neo tuning and S&S headers with exhaust.

The results:

45 degrees and rainy

281.8whp
306wtq

http://www.clublexus.com/forums/4426070-post69.html
http://www.clublexus.com/forums/performance/396896-finally-made-the-damn-install-appointment-5.html

 

[Lextreme II]

Nice.... John, what do u think GS400 would dyno with an additional .7 liter?

 

[XR8tt]

If you see the std headers you can see why!!
The inside primeries don't line up with second pipe!!
Welded over, you cannot see...