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Just finished up my exhaust, full header back, kept factory cat on header car picked up 28whp and 34wtq. Very happy with sound and gains car was actually picking up few more hp after each run just did 3 pulls.
Exhaust system we are designing to sell to public we still doing some more testing and track times soon will be posted
Oh, I had no idea. Very cool. Still on the fence on what exhaust to go with right now, so maybe I'll throw this one in the mix as well. Look forward to hearing how it sounds.
Exhaust system we are designing to sell to public we still doing some more testing and track times soon will be posted
Please consider recording a video of an iPhone running the app
SNRnFFT $4 with the button db selected not dbA. Do the reading
at about ear level behind the steering wheel so we can compare before and after sound levels if you can get them. As rpm increases just
say what the rpm was. Its difficult to video the iphone reading and
the rpm without moving the iphone close to the digital tach and then you dont read the same sound level you ear and body is reacting to.
If no video possible how about just posting the average db value at several rpm values. If you dont have before (stock pipes and mufflers) I can post the numbers for "before" since I have the std exhaust now.
Thanks for letting me know about the app. I wanted to get sound clips done with a good video camera also the dba levels.
You have to watch out for apps that filter low frequency out and dont let you make a choice. (dba is filtered like your
you ear does filtering but you can feel the low frequencies).
You want to know ALL the frequency content or db.
Found a web comment: "Decibels (dB) are a measurement of sound intensity over the standard threshold of hearing. dBA is sound intensity with an "A" contour filter. The filter adjusts the measurement to account for the way in which the ear responds to different frequencies of sound.?
If you really want dBa you might also do dB also and compare so you at least get everything.
I'll be going back next week again to let ecu relearn its new values to see if the gains are an average. Will be going to the track next week to see my track times
Very nice gains! I'm sure the sound alone with the V8 is worth it also but cant argue with that much whp.
Also I really like the look of those exhaust tips from what I can see in the picture. Some of the ones with 18 different mufflers per side and tips shooting out at all different angles just don't work for me. This one is simple, clean, and mean. Well done.
Very nice gains! I'm sure the sound alone with the V8 is worth it also but cant argue with that much whp.
Also I really like the look of those exhaust tips from what I can see in the picture. Some of the ones with 18 different mufflers per side and tips shooting out at all different angles just don't work for me. This one is simple, clean, and mean. Well done.
Thanks, I wanted to go with a clean look and simple setup.
08-13-15, 12:08 PM
Exhaust dyno
