Isn't USDM Acura TSX's uses different sort of camshaft head thingy than the Honda Euro's?
Printable View
Don't mess around with intake or exhaust. If you want a bit more push down low in all gears then get a lighter flywheel. The stock K24a3 one is very heavy (around 9kg)
My bad - didn't see the auto part.
Depending on which intake you do, you might sacrafice some low end torque for top end power. The best thing to do would be a smaller-collector sports header with a high-flow cat. The easiest way to get some straight line speed without actually touching the engine is to do lighter wheels. If you can save 1kg on each wheel it's equivalent to removing around 30kg of unsprung weight.
Never mind, mis-read again :P