Gaunt

iTrader: (11)

Alright fellas, ripping the exhaust out of my car for clearance reasons primarily, and room to grow reasons secondarily.

Currently has a fantastic set of LPP 1 3/4inch stainless headers on it. goes into a 3inch TSP true dual system that dumps at the axle.

Switching to a TSP 1 7/8 inch header running to a 3inch electric cutout and a magnaflow catback.

Am I going to be losing power, gaining power, or staying the same (on this stock cubed 6 liter).

Car made 398 rwhp, 395 rwtq in its current form. In the end, it's probably only going to be a marginal +/- difference in horsepower, but I'm curious as I will be riding around on this setup for a year or so until the build comes together.

Gaunt

iTrader: (11)

Alrighty, here is the setup I have ordered.

TSP 1 7/8 coated headers

TSP ORY

DMH 3" electric cutout with QTP cutout

3" Magnaflow catback

King Nothing

iTrader: (9)

cuts outs closed i'll guess you'll lose but once you open you'll gain

Gaunt

iTrader: (11)

Cool thanks

I figured as much with the cutout closed, it was with the cutout open that I'm most curious about.

sscamaroburn02

iTrader: (14)

I'd like to see a dyno to see the gains/losses if any. I know TD"s flow pretty well but the cutout might yield a slight gain.
keep us posted when your new setup is on

CamaroZstyle28

iTrader: (1)

maybe a little power difference on the dyno but nothing that is noticeable when u punch it

jts98z28

iTrader: (18)

post up the dyno sheet if you get it dynoed im thinking about doing something very similar

Midnight02

iTrader: (8)

Shouldn't be a noticeable difference either way. In theory, larger primaries and the cutout should yield a little more power up top than the true dual setup.

Gaunt

iTrader: (11)

I don't really plan on dynoing the car. Probably a waste of money at that point. It's tuned as it is now, and it probably doesn't need a re-tune, and that would be the only time I would put it on the dyno. Just knowing that in theory, I should be making a few more ponies is good enough for me.

bww3588

iTrader: (49)

your going from TD's to a y and catback and how is this room to grow? TD's are the most efficient exhaust you can put on these cars.

Gaunt

iTrader: (11)

No... I'm going from 1 3/4 inch primaries and true duals to a 1 7/8 header and a 3 inch electric cutout.

The catback is not the point of this, I'm running a cutout.

And in my first post, I said ground clearance was the largest issue.

jerflash

your going from 3" duals with bullets to a 3" y pipe to ONE 3" cut out. the 3" bullets dont hold back anything. i understand the 1 7/8 headers give you room to grow but the y pipe is going to hold you back anything over 500hp even with the cutout open. At your current power level the 1 7/8 headers, y pipe, cutout i think you will lose a little hp.

what you need to do is a setup like mine. it costs but worth it. I have american racing 1 7/8 headers and there 3" y pipe that goes to a magnaflow catback with an extra mufler in the i-pipe to control sound when crusin. But what i did was put 2 low profile oval cutouts from DHM in my y-pipe right after the first bends. IMO this is the best street/strip setup.

pharmd

iTrader: (4)

^I'm with jerflash...essentially he's running open headers with extensions when the cutouts are open, then a (hopefully) drone free catback when they are closed.

Gaunt

iTrader: (11)

Interesting.... I need to look into that.

jerflash

my exhaust was pretty much drone free with the bullet in the i-pipe even with that crappy hooker y-pipe merge. now with this beautiful ARH y-pipe should sound sweet

Gaunt

iTrader: (11)

Thanks for the heads up, rarely do people offer solutions with objecting to an idea.

Gaunt

iTrader: (11)

Well, for what it's worth, I'm doing dual DMH electric cutouts, probably going to hack up the ORY a bit and put them just before the bend into the merge.

Thanks for letting me know guys.

jerflash

thats pretty much what i did. depending on where you choose to put them and your y-pipe you should have tons of room

should be awesome