[stangboy555]

$425, Is it worth it? Are there alternatives? What are the HP gains on a direct midpipe replacement?

[danGT06]

IMO the prochamber is really not worth it when you can get a Pypes O/R h-pipe for $180. You will see about 6rwhp from any O/R pipe, but will lose some low end torque. If you want more power then this probably isn't the best mod, but if you want your car louder then get it.

[nitetimebolher]

From what I hear, the off road pro chamber is suppose to be quieter than both offroad XorH.
I think all the offroad pipes will make the same power with the X probably making just a lil more.

It really depends on what sound u prefer. Check sound clips on here or Youtube.
I have the Off Road Prochamber with the borla stinger, it's pretty loud.
I chose this because I wanted a deep rumble sound without that raspiness.

[PiggySmallz]

if you want sound prochamber is great. A lot of guys say the H pipe trumpets a bit, i never noticed any with the prochamber and its high quality

[D_Gusler]

Prochamber = great sound muscular exhaust.

Gonna pick up power---not really.

I can't tell a difference power wise between the OR H and the prochamber. Sound wise--there is a difference. The prochamber acts more like a mid-muffler system.

BOTH lose torque from the stock mid-pipe. Some high end horsepower is gained tho. I would recommend against the o/r unless you have gears(helps make up for torq loss--not major, but noticable).

[nitetimebolher]

ORIGINAL: D_Gusler

Prochamber = great sound muscular exhaust.

Gonna pick up power---not really.

I can't tell a difference power wise between the OR H and the prochamber. Sound wise--there is a difference. The prochamber acts more like a mid-muffler system.

BOTH lose torque from the stock mid-pipe. Some high end horsepower is gained tho. I would recommend against the o/r unless you have gears(helps make up for torq loss--not major, but noticable).

Y is there a loss with OR? Is it because of lack of back pressure?
What if I put a high flow cat?

[stangboy555]

Thanks guys, I think I like the sound I'm not a big fan of the raspy X's but I don't really want to be as loud as an H. Anyone go a link to that long exhaust thread? I saw it yesterday then lost it. Couldn't find it in a search.

[D_Gusler]

ORIGINAL: nitetimebolher

Y is there a loss with OR? Is it because of lack of back pressure?
What if I put a high flow cat?

You hit the nail on the head--lack of backpressure.

Installing high-flow cats in an off-road pipe is useless. The factory h-pipe flows very well, as it already has two small convertors. Not saying not to upgrade, just saying for $400 for an H with a high flow cats is stupid IMO. The sound will be just like stock as well.

[SonicBlue05GT]

ORIGINAL: D_Gusler

You hit the nail on the head--lack of backpressure.

Installing high-flow cats in an off-road pipe is useless. The factory h-pipe flows very well, as it already has two small convertors. Not saying not to upgrade, just saying for $400 for an H with a high flow cats is stupid IMO. The sound will be just like stock as well.

going high-flow cats for performance is stupid... but putting on high-flow cats for sound isn't.

there is a pretty big difference in sound between the stock cats and high-flows such as bassani or magnaflow