Gipsy wrote:Hi, number 1 is my experience, but don't go straight pipe, you need some back pressure to make it all work. The sweet spot is 2 to 3 thousand revs but high end performance is improved. As for 2 and 3 I agree with better economy but I don't notice turbo lag. I have a chip so it has greatly improved my Hilux. For me I tow a 2.5tonne caravan so the 3inch improves the heat getting out of the engine. Remember if you want a race car you have the wrong vehicle as the Hilux isn't a performance vehicle.
Oh, dump the K&n filter, it will oil up the intake sensors and kill your engine really quick.
davo94 wrote:The factory turbo outlet isn't even the size of the factory dump pipe in a 1kd.
There is lots of info out there on exhausts but keep in mind the factory system is more then engough for the factory turbo and roughly 200rwhp.
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