i have a 02 bmw 325i and the rim size were 15 i think and i changed them to a 18, the tire are also wider. my question is what effects will this have on my car like gas mileage, speedometer, suspension etc do i have to recalibrate anything???????? thnx
if they are estimating that u will get 10 hp u will probably get around 6-8. if u cud get 30 theyd have that in big bold print on the box. ppl dont under-advertise there products.
cold air intake increases higher RPM horsepower. decreases lower RPM horsepower
dont ever do that i t will break your suspension system car is made according to tire and rim size and rims and tires are made according to car spcifications if u change them you will beat hell out of it as if you wear big shoes and pants
