GTM 3" catback with test pipes

huff442 · 06-06-2009, 02:05 PM

Next year, i'm hoping to order and install a GTM twin turbo kit on my 370Z. In addition to the turbo's, i want to install the GTM 3" catback exhaust with test pipes, possibly this summer. If i install the exhaust before the turbos are in, how bad will it hurt the torque? Can I expect to see a big decrease in power due to the oversized exhaust?

nogoodname · 06-06-2009, 02:09 PM

i heard you'll loose back pressure and you'll loose some torque too

huff442 · 06-06-2009, 02:14 PM

I would expect to lose a little on the bottom end and maybe gain a little on the top. I'm mostly concerned about it really affecting the drivability.

nogoodname · 06-06-2009, 02:16 PM

why not wait to install it when the turbos are out??

huff442 · 06-06-2009, 02:22 PM

I'm slowly buying up all the pieces for this massive build-up. I don't think i could stand having it sit boxed up in the garage!

nogoodname · 06-06-2009, 02:30 PM

well, you can always put it on and if you loose too much...put the stocks back on...and leave the GTM one in the box.

huff442 · 06-06-2009, 02:37 PM

That's true. Plus it gives me another reason to work on the Z, again!

nogoodname · 06-06-2009, 02:40 PM

fun to take parts on then off then on again....it will keep you busy and you'll know how to install them faster when the big day comes for the turbos.

huff442 · 06-06-2009, 02:50 PM

I can always use a good excuse to pull the tools back out.

06-06-2009, 02:05 PM	#1 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 54 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 16	GTM 3" catback with test pipes Next year, i'm hoping to order and install a GTM twin turbo kit on my 370Z. In addition to the turbo's, i want to install the GTM 3" catback exhaust with test pipes, possibly this summer. If i install the exhaust before the turbos are in, how bad will it hurt the torque? Can I expect to see a big decrease in power due to the oversized exhaust?

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06-06-2009, 02:09 PM	#2 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	i heard you'll loose back pressure and you'll loose some torque too

06-06-2009, 02:14 PM	#3 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 54 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 16	I would expect to lose a little on the bottom end and maybe gain a little on the top. I'm mostly concerned about it really affecting the drivability.

06-06-2009, 02:16 PM	#4 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	why not wait to install it when the turbos are out??

06-06-2009, 02:22 PM	#5 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 54 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 16	I'm slowly buying up all the pieces for this massive build-up. I don't think i could stand having it sit boxed up in the garage!

06-06-2009, 02:30 PM	#6 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	well, you can always put it on and if you loose too much...put the stocks back on...and leave the GTM one in the box.

06-06-2009, 02:37 PM	#7 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 54 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 16	That's true. Plus it gives me another reason to work on the Z, again!

06-06-2009, 02:40 PM	#8 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	fun to take parts on then off then on again....it will keep you busy and you'll know how to install them faster when the big day comes for the turbos.

06-06-2009, 02:50 PM	#9 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 54 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 16	I can always use a good excuse to pull the tools back out.