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I need help. I donít know Crap about engine performance mods. I have a IS300 I got couple months back. Bought it in spur of the moment deal without knowin much about it but I thought it was so sexy . From what I know now I would not of got it because the poor gas mileage I think caused from the the aftermarket mods specifically the cold air intake, the exhaust and I think its chipped too.
Someone told me there mods should improve gas mileage while someone else said the chip is programmed to throw more gas into engine decreasing mileage. Im thinkin those mods are hard on the engine that decrease the life of the engine and kill the gas mileage.
I get around 15 city and 17-19 highway and I only drive 60 on the highway. Everytime I drive over 60 I can feel the exhaust getting louder and the gas getting eatin up more . I was wondering what my options were to help my gas mileage and prolong the life of the engine. Should I take out all 3 or can I just replace one or two to help my gas mileage. Any advice or recommedations where I can take my ride for this type of work for cheap but good work. also considering replacing the cold air intake and exhaust back to stock.
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Thanks guys. i keep up with maintanance. whatever is required at that mileage interval. i did the very expensive timing belt and pump at 90k. i do the regularly required oil changes. Have not done the air pressure yet for the tires on my 19s also alignment is off from a tow i had from a previous snowstorm. ill get my tire pressure checked , tires balanced and alignment this week hopefully my car will be smoother.
Sway is ur car chipped? Is a chip required to properly run these after market parts such as intake and exhuast? Im lookin to get my chip removed but i wondering if it will affect the performance of my air intake and exhuast. From what i heard the chip makes the engine work harder and throws more gas into it.