Im shopping for an O/R H-pipe and have decided to go with MAC. However, I can't decide between the regular O/R H or the O/R Prochamber. The Prochamber is MUCH more expensive, so Im wondering if there is a greater performance gain and/or better sound with the O/R Prochamber over the O/R H to warrant the difference in price
no performance difference, but the prochamber is slightly different in sound. It's unique, but won't turn any heads. I would get whatever mid pipe you can get the cheapest.
Off road pro chamber if you can afford it. We put one on my friends car that he scored for 100$ used. He sold his BBK O/R X for 80$, so he's got 20 bucks in it. Here's what his sounds like, stock headers, O/R Prochamber, and 2 chamber Flowmasters. It made a quite noticeable change in seat of the pants feel. We are both surprised at how much of a noticeable difference that car picked up over the old off road X. YouTube - LtBullitt351's Channel
I just put the O/R H on mine last weekend, and I LOVE it...as does everyone that has heard the cars new rumble!!!
Offroad Prochamber Video Offroad Prochamber with single chamber Flows, into 3" dumps before the axle.