Aftermarket o/r H-pipe VS. Aftermarket Catted H-pipe?

**Troll** · 04-14-2007, 05:05 PM

As far as power goes, dealing with aftermarket products, how much more hp does an o/r free up over the little high-flow cats?

...and/or how much more does an aftermarket catted mid-pipe flow over the stocker?

anybody ever do a back-to-back dyno with their stock and new mid-pipe and no other changes?

thanks.

**Shaggy** · 04-14-2007, 06:47 PM

Depends on what applications.
Mostly bought just for sound and some HP
anything flows better than stock :)

**Cam99** · 04-14-2007, 09:37 PM

Originally Posted by Troll

As far as power goes, dealing with aftermarket products, how much more hp does an o/r free up over the little high-flow cats?

...and/or how much more does an aftermarket catted mid-pipe flow over the stocker?

anybody ever do a back-to-back dyno with their stock and new mid-pipe and no other changes?

thanks.

Did you buy a car???? I can only tell by the butt-o-meter, but the catted x in my made a noticeable improvement and the sound was greatly improved.

**Troll** · 04-14-2007, 10:03 PM

Originally Posted by Cam99

Did you buy a car???? I can only tell by the butt-o-meter, but the catted x in my made a noticeable improvement and the sound was greatly improved.

http://www.steelcitystangs.com/forum...ead.php?t=1509

I think.

I was thinking I'd stay legal this time

and go with a catted mid-pipe.

The car has 2-chamber flowmaster muffs welded into the stock cat-back. I'm prolly gonna stick with an h with the chambers. MRT has a nice stainless steel catted h, but the damn thing is $515.

**Cam99** · 04-14-2007, 11:12 PM

Originally Posted by Troll

http://www.steelcitystangs.com/forum...ead.php?t=1509

I think.

I was thinking I'd stay legal this time

and go with a catted mid-pipe.

The car has 2-chamber flowmaster muffs welded into the stock cat-back. I'm prolly gonna stick with an h with the chambers. MRT has a nice stainless steel catted h, but the damn thing is $515.

I was originally going to go with a catted H, but found them pretty expensive, so in went the x.

**boo** · 04-14-2007, 11:23 PM

i have a BBK O/R X... and a set of flowmaster 40's... i think i lost a lil low end torque, but picked up above 4 grand(4 cammer).
i am seriously considering going to a prochamber and magnaflows. the damn thing is kinda TOO loud(i do like dropping it in 4th in the tunnel, tho!). a lil too raspy for me, and i like the way my friend's terminator sounds with that setup....has more of a 60's musclecar sound.

**Troll** · 04-14-2007, 11:42 PM

Originally Posted by boo

i have a BBK O/R X... and a set of flowmaster 40's... i think i lost a lil low end torque, but picked up above 4 grand(4 cammer).
i am seriously considering going to a prochamber and magnaflows. the damn thing is kinda TOO loud(i do like dropping it in 4th in the tunnel, tho!). a lil too raspy for me, and i like the way my friend's terminator sounds with that setup....has more of a 60's musclecar sound.

buddy of mine had a Dr. Gas o/r x and mac catback on his '02 GT. It was definitely a different sound. It sounded like a coffee can full of nickles at low RPM, but like a Nextel Cup car at WOT.

I'm not normally a sheep, but I'll stick to the standard h-pipe + chambers OR x-pipe + flow-throughs.

My old car had a mac o/r h and mac catback. It sounded great, but almost too loud + after two years, it had surface rust all over it and I prolly only had it in the rain a few times.

I'm tired of going to Mr. Looktheotherway to get my car inspected and I wanna take a few trips with the car this summer and I don't want any chit from the PO PO in other states (yes I'm too lazy to put the stocker on for the trips and who wants to lose power when they're on the innastate?).