2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

Will a Downpipe add power by itself?

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Old

Mar 19, 2008 | 11:51 PM

#1

jdub777

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Joined: 10-23-07

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From: San Francisco

Will a Downpipe add power by itself?

2.5' catless downpipe, is it worth installing by itself? Will tuning it with a new downpipe on add any power as well?

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Old

Mar 19, 2008 | 11:54 PM

#2

ColeJJones

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From: Kaneohe, HI

dp by itself, you will see a little power. the real big power robber is the header. open that up with your dp and you will see power

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Old

Mar 19, 2008 | 11:55 PM

#3

XM15

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From: CT

^^^Yup. I would do both of them at the same time, or the header first.

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Old

Mar 19, 2008 | 11:56 PM

#4

boostnss

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From: Kansas

my downpipe was the first mod i did no big hp gain but i liked the sound i got from it

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Old

Mar 20, 2008 | 04:16 PM

#5

Jimmys2007CobaltSS/C

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From: Philadelphia, Pa

get both and tuned and u will see the difference

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Old

Mar 20, 2008 | 04:19 PM

#6

MfZx25z

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From: Philly, Pa

Whats the average price for a tune around philly area?

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Old

Mar 20, 2008 | 04:59 PM

#7

Jimmys2007CobaltSS/C

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From: Philadelphia, Pa

i dont know where one is tune time is the closest and thats in toms river nj

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Old

Mar 20, 2008 | 08:02 PM

#8

PenguinPIE

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From: Vancouver, BC

my xtc downpipe just came in today! i think downpipe itself should add power since the stock cat is restrictive i heard. im going with a header combo tho.

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Old

Mar 20, 2008 | 09:03 PM

#9

MfZx25z

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From: Philly, Pa

yeah headers will really open it up

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Old

Mar 20, 2008 | 09:06 PM

#10

WhiteSSBalt

Not a Sebring

Joined: 02-22-07

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From: Northern VA

Just go full exhaust. You won't regret it. Im running a CA header, XTC 2.5" de-cat downpipe and an ARK N2 cat-back, and its fantastic!

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Old

Mar 20, 2008 | 11:09 PM

#11

iLLmaTic3s

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From: NY

do the whole thing..my downpipe 2.5 with cat gets installed 2morrow am...so c/a header, c/a downpipe, gm performance catback..woot..got mods!?

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Old

Mar 20, 2008 | 11:16 PM

#12

WhiteSSBalt

Not a Sebring

Joined: 02-22-07

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From: Northern VA

Quote:

Originally Posted by iLLmaTic3s

do the whole thing..my downpipe 2.5 with cat gets installed 2morrow am...so c/a header, c/a downpipe, gm performance catback..woot..got mods!?

yessir

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Old

Mar 20, 2008 | 11:19 PM

#13

chris88z24

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Joined: 06-03-07

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From: NY

Remember, your exhaust is only as free flowing as your most restrictive part.

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