Down Pipe
08-27-2009, 04:41 PM
#1
Senior Member
Thread Starter
Join Date: 08-06-2009
Location: Crestview,FL
Posts: 181
Down Pipe
What down pipe are yall running? What if any gains are made? I'm debating on putting one on my car. I don't want to change the exhaust system just to get rid of stock dp with the cat to either Hahn, ZZP or Clear Image catless DP
08-28-2009, 03:27 PM
#3
Senior Member
Thread Starter
Join Date: 08-06-2009
Location: Crestview,FL
Posts: 181
I probly will run one with a cat after talking to some Cobalt SS guys about it. One guy was saying his seem to run better with one with a cat and others were talking about poping noises without a cat. Anyone have any experience with changing out the stock DP on the HHR's? Any gains to be had ie quick spool, sound, hp increase?
08-28-2009, 03:51 PM
#4
Senior Member
Join Date: 07-15-2009
Location: Waterbury CT
Posts: 2,070
Wih NO cat you'll be sounding like any modded SRT-4 out there. Granted I Love that sound, but I'm sure it gets tiring after a while, especially coming home after late night runs at 2 or 3am... Nevermind being eye-candy for every cop out there w/ a radar gun too... Run a cat in the 3" DP of your choice, tree frogs in Malaysia will thank you!
Later
Allex
Later
Allex
08-29-2009, 09:28 PM
#5
Banned
Join Date: 06-20-2008
Location: Chi-Towns burbs
Posts: 1,682
I have a catless downpipe on mine and love the sound. YOu can hear the turbo so muchbetter and it spools a lot quicker as well. Whether you go catted or catless is up to you but i love the way mine sounds. And i went through ADM for my exhaust
08-29-2009, 09:48 PM
#6
Senior Member
Join Date: 08-07-2009
Location: Charlotte, NC
Posts: 159
Does it put out a smell that some complain about with catless? How much louder is it now?
08-30-2009, 04:02 PM
#8
Senior Member
Join Date: 01-20-2009
Location: eastern shore, maryland
Posts: 115
I have the stock exhaust but gutted the cats. Even with the stock exhaust it sputters between gears and lets out a nice little pop every now and then when down shifting. I like it though so I personally will probably go cat less when I upgrade my exhaust. And I agree, the fuel smell is amazing, so so sweet.
08-30-2009, 08:12 PM
#9
Senior Member
Join Date: 07-15-2009
Location: Waterbury CT
Posts: 2,070
Hahn catted DP and exhaust guy here! Quicker turbo spool, check, 23-24psi pulls to redline CHECK. Lovin the Hahn exhaust I ordered from TTR + Stage kit? Definitely!!
Later
Allex
Later
Allex
Last edited by asanti; 08-31-2009 at 04:56 PM.
08-30-2009, 08:22 PM
#10
Senior Member
Join Date: 08-07-2009
Location: Charlotte, NC
Posts: 159