i have a 2007 VW Rabbit, when i bought it a month it was set at stock 150 HP, until now i have added a $700 Greddy Exhaust System, and a $120 GBOX Performance mudule chip, im guessing i have all together about 175 HP because the chip says it adds 11 HP and the Exhast should add about 8-12 HP, how much you guys think these two parts have added, and also on google it says a stock VW Rabbit goes 0-60 in 8.8 sec. how much faster you think it goes now?
Answer:
The chip was your best buy, but unless you couple it with a performance air filter their estimates are off. My estimate without improving the inflow of air would put you at about 165-170hp. And googles estimate of 0-60 is with a pro driver, ideal conditions, new tires. Oh and also a stick, do not know wether yours is a stick or not. But it should shave a respectable 1/2 second at most. You are on the right track to making a worthy street racer if you stick with it. never underestimate your tires and traction, also lighten your car as much as possible, like you didn't know that already.
165 hp maybe. You cant add the max powers together. One mod might help top end power and the other might add low end power. Only way to really tell more than a guess is dyno it before you start and again on the same dyno when you finish. You wont get 8-12 hp from an exhaust on a 4 cylinder car. That would be almost a 10% gain. All that you might be at 8.6. Not enough to really notice.
my answer would be, just take it to a local shop and ask them to do a dynamometer test on it. they will give you the print outs and it tells you hp, torque and all that good stuff :)
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