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Old 02-17-2002, 11:38 PM   #1
dark knight
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Member#: 9927
Join Date: Sep 2001
06 Sti

Default hsk vs cobb vs stock catback weight ?

fianlly decided on one of these 2 sytems, got pretty much only one last question, how much do these systems weigh in comparison to stock, have realized more weight i remove faster car is, leaning torward the hks system but it is 2.95 inches whereas the cobb is 3 inches and slightly worried the hks may be a little low, so anyone out there that can telll me re:weight
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Old 02-18-2002, 12:02 AM   #2
Scooby Specialist
Member#: 6046
Join Date: Apr 2001
Chapter/Region: BAIC
Location: San Francisco
'08 Prius


By my bathroom scale the stock catback weighed about 37 lbs,
and the Cobb catback weighed 27 lbs. Most of the difference seemed to be in the muffler. What's your worry about the HKS exhaust? I think you mean to say it's 2.5" (not 2.95") compared to Cobb's. No big deal.
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Old 02-18-2002, 01:12 AM   #3
dark knight
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Join Date: Sep 2001
06 Sti


i think the HKS is 75mm whch they told me was approx 2.95 inches, i guess if I'm spending more money i want it big, and everyone seems to say if you want more power you need a 3 in exhaust. i'm also worried it might hang too low, that it might scrape, it's alot of money for the HKS but it definitely has style, but I just want the most i can get out of this admittedly small hp mod
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Old 02-18-2002, 10:17 AM   #4
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Member#: 3803
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: South Carolina
07 Mustang GT
285 is a wide tire!


Unless you are replacing the turbo with something a lot bigger, a 2.5 could handle anything the stock turbo can throw at it.

and yes, 75mm ~2.95 ~3 inches, the are basically the same diameter. at 600hp, there might be 2 hp difference between the two.
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Old 02-18-2002, 10:34 AM   #5
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Join Date: Oct 2001
Location: Palm Coast FL via NJ
2006 VW SUV


I have a three in on my car now and a 2.5 would make the same amount of power. As far as flow. You would need at least a PE turbo to see the limits of a 2.5.

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