0949er

Here are my own personal reviews of each pipe:

BBK O/R H:

Deep, rough sound
Extremely loud at WOT
very loud rasp echoes off cars between 2500-3000 rpms
Small drone in car at driving speeds


MAC O/R Prochamber:

Reserved, deep sound
Loud at WOT
sound does not echo off cars between 2500-3000 rpms
Sounds great from inside the car
No real drone



I changed from the BBK O/R H to the MAC O/R Prochamber for the sole reason I wanted a quieter, more reserved powerfull sound. It was exactally what I wanted. Sounds great through the whole RPM range. No rasp at all.

I strongly recommend if you want a still loud, but not obnoxious exhaust that will scream only when it needs to.


Here is also a video comparison:
http://www.youtube.com/watch?v=7qjhj6pknd4

SilverGT03

very good video!

Mustang3GT07

+1 Very nice vid!

I love the way the pro-chamber sounds a lot better!

2011Black5.0

definitly gunna have to look in to that if its only obnoxiously loud when it needs to be lol i love my O/R H but sometimes, barely ever, the noise is unbearable or as my buddy likes to say "now I have a headache, that things just loud it doesnt really have a tone, its just ****ing loud" lol and he drives a lightning for his daily driver and has a 625 rwhp 04 cobra

dagamore

have to follow at home, cant see the video from work.

teej281

I dont like the rpm fall with the prochamber. But if youre happy, then thats all that matters. But your car sounds awesome regardless.

72MachOne99GT

I liked the O/R H sound better, but I'm a bit biased since I've had stingers and an o/r H for more than 3 years.

0949er

yeah I am 100% happy with it.

Its a good "in-between" for still wanting a loud midpipe, and not wanting it to annoy people on the road.

CAMDUP

very well done vid !!....did you notice any difference in performance at all ???

0949er

some pics: