|
Now I am no dyno expert, but I had a pro shop here in Houston do back-to-back dyno pulls on my boxster before and after I put on my cheap eBay headers and I had a nice HP and torque bump. The weather was stable that day too (in other words, it didn't start pouring down rain mid day which would have changed both temp and humidity factors)...I'm just sayin'
The loud, twin-chamber aftermarket muffler I added did not diminish gains from the new headers and stock cats. Makes the car sound more powerful than it is though and the cabin drone is deafening if you're stuck in traffic with the top up (ie, for rainy days) and moving through 2-3k RPM's a lot of the time.
I've dumped plenty of money into my car (arguably more than most every other forum member) and doing a high speed DE was hands-down the best way to discover my 2.5 doesn't need any more power. Holy crap it's got LOADS of power when driven right on a track.
A vast majority of us driving our cars in town light-to-light make us feel the car is underpowered and we want more torque. It's just not designed for this kind of driving... buying a 997 Turbo if you're rich or a Corvette (if you're not as rich) is the car for straight line performance.
|