adizzle

i think i have done everything to my engine i can possibly do without turbo charging it or supercharging it i have ( injen intake) (hks grounding system) (obx headers) (Safc 2 air flow converter) ( Gready exhaust system) ( tein edfc springs and controller) ( hks spark plugs) does anyone esle know what i can do to my car performance wise?????????????????? thanku

lexus IS300 2001, bought used 3 weeks ago 67k miles. stock with auto trans.  now be warned order zi performance module from ebay for approx $40 after shipping. Installed professionally by myself. I work at a local Dealership and took before and after readings using snap-on vantage scanner. only wires inbetween intake air temp sensor and ecu to basically fool ecu to thinking cooler intake air temps that portion did work reduction approx 40% but caused check engine lamp? not sure if unit failed but got no response from seller!  Do not use this gimmick.

just my 2 cents. returned to stock and now looking into a headerkit and down pipe then muffler upgrade but not wanting to get too obnoxiously loud any suggestions?  :)

←

ey when u get new headers and make it a straight pipe ure engine lamp is gonna light up and your traction control wil jsut start blinking and not work the thing u need to do is get an 02 imulator this overides the sensor to making it think all the crazy air is all good cuz car 97 and up are designed to follow the air pollution and when u pass the requirments ure car will default and not perform as well so just get an o2 imulator and itll be all goood