Today, Modifying a car is frequently reduced to attaching attractive accessories like fashion items; however, We believe a car must Internal modifications are possible, Such as improving the engine by applying scientific and which will, Technological advancements Boost engine power to prolong while making, Its durability adjustments to the clutch and brake as well Incorporating seat accessories and related sections contributes extra value to and this, The vehicle is our recommended method Changing the car involves boosting its power from inside about engine tuning and car performance, So if you are looking to know about how to, Car tuning increase engine power and how to modify then you, Your car ve come to the right before we, Place. However can start talking about engine tuning and increasing engine power we first, And torque need to have a basic understanding of how an internal combustion engine produces power. Basic concepts and principles of the power units with internal combustion systems and the common terms used to discuss engine modifications, Such as engine displacement, Volumetric efficiency and air density as every one of these influence engine power and performance. Volumetric efficiency the volumetric efficiency ve of an engine is the quantity of air/fuel mixture that is ingested utilizing the engine during the relative to, Intake stroke the engine s displacement. There are several factors that prevent a stock engine from achieving a 100% ve. Chief among these are restrictions in the airflow path of the intake valve overlap, And exhaust effects, And reversion. Restrictions in the airflow on the intake side include the the throttle, Air filter body, The plenum and runners, And the intake port. These restrictions can be overcome to some degree by fitting a high, Flow air filter, And improving air flow through porting and especially Located, Gas flowing on the cylinder surface head. Restrictions on the exhaust system include the exhaust header, The catalyst converter, And the mufflers. Unfortunately, Anti, Emission legislation requires that the catalyst converter be retained on street legal cars but restrictions in other areas of the exhaust system can be overcome by fitting a free flow exhaust header and free flow exhaust mufflers. Fitting a free flow exhaust system will also serving as, Reduce reversion the stream of exhaust gasses back inside the combustion chamber chamber. Reversion causes contamination of the air/fuel mixture and takes up space that the air/fuel mixture should fill, Thus reducing volumetric efficiency. Too much back pressure in the exhaust system will cause reversion. As unitech suggest, Fitting a free flow exhaust header that is slightly larger than the exhaust port on the cylinder head reduce reversion.