Great point, and great pics.Older engines with exhaust manifolds that dumped all 4 exhaust ports into one tube might have some benefit , but not LT1
Are you going to get 35-40 HP more with headers .........not likely.
I wonder what an "H" pipe would sound like instead of the "X" pipe. Probably no room for it though. I had a 2009 Bullitt Mustang that had a great sounding H pipe.In my honest opinion, I think the car sounds like ----, I think to make the car sound good, it needs a Camshaft change, as the cam in this engine sounds like a 1972 Ford 360cid. it sucks! it needs more overlap, and a bit more crispness to the overall body of sound. (JMO)
The sample I heard sounded like both loudness and frequency/tone. Sounded great, but my NPP sounds great to me and I spent $1200 for it, so I don't need to spend another $1600 for something else.Is it more of a frequency change or a loudness change? My wife and neighbors already know when I am bubbling into my driveway, so I am not so sure I'd want any more volume
Brandon: Without the valves in the new system, what has been done to prevent codes being sent to the car's ecm's?I just had American racing mid length headers, corsa's double helix x pipe, and their sport exhaust installed. While there are no longer valves for the dual exhaust sound, it is still not overly loud and cruising at 75 it's as quiet as the stock exhaust. It's a deeper sound for sure, a much better sounding one at that. With all that, there is a definite power gain. Based on the companies hp gain, I supposedly gained 40 hp and 45 in torque. I didn't do a dyno before and after, but there is a chang.
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