Originally Posted by amiti
Today I was just searching regarding stock air filter replacement and got to know that there is a brand called cosworth. I saw that it does not require applying oil. My queries are,
1. Is there any advantage of such filter for automatic i10?/ 2-3% increase in power, Sporty sound, lesser service of the filter.
2. Is this a good filter as I normally hear k&n and green cotton only? All the companies are quite similar.
3. Should it be good with combination of free flow exhaust? Or I am just guessing? Free flow is at the end of the engine & this is at the beginning. Both have their effects separately. Together when used you can gain both at the same time & cumulative effect of 1-2% additional.
Only a simple air filter change Particularly the stock replacement filter will increase the power by a HUGE & ENORMOUS 2-3%
A Cold air Intake can increase upto 10% if the Stock filter box & routing of pipes has lot of restrictions.
However for newer generation cars these gains can be between 5-7% at the most as the stock air intake is well designed.
Please beware of companies claiming big numbers.
For a car with 80bhp The difference will be around 2bhp with a stock replacement filter.
With a cold air intake for the i10 the gain will be under 5bhp as the design is quite good.
With a good FFE & Cold Air Intake combo you could look at an increase of around 10 bhp which is quite good.
The Auto box may become better with this increase in Power & torque.