Hp Difference Between Hi Flo Cats And No Cats?

9

98sqstang

New Member

Feb 11, 2004

18

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0

Feb 13, 2004

#1

• Feb 13, 2004

• #1

I was wondering if anyone has actually tested HP difference between X or H pipes with hi flo cats versus off road pipes with no cats. I have a 98 Cobra and was wondering if the swapping for emissions testing is the worth the exta Hp you get from a pipe with no cats or having one with cats that can stay on all the time..

 

WRXracer

New Member

Feb 28, 2003

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Feb 13, 2004

#2

• Feb 13, 2004

• #2

yeah

probably a 10 hp differnce..

 

mrvax

Stay thirsty my friends

Founding Member

Nov 29, 1999

5,225

3

79

SN Moderator: Orlando, Fl.

Feb 13, 2004

#3

• Feb 13, 2004

• #3

I would think even less with good hi-flows. Maybe 5.

 

D

DavidCroft

Founding Member

Mar 16, 2002

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Sugar Land TX(Houston Area)

Feb 13, 2004

#4

• Feb 13, 2004

• #4

I wouldnt even try hi flow cats. First of all they are like $400 a piece. My H-pipe shipped to my door was like $130. Smells like a motor boat, and have to go to the south side of town for inspection, but hey, why pay more for less?

 

ADRENLN

Active Member

Apr 16, 2003

2,342

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49

NJ

Feb 13, 2004

#5

• Feb 13, 2004

• #5

i thought the same thing pay less and get more hp. however im switching back to a pipe with cats because of the smell and mostly the cops here in nj, i get pulled over too much. so i ts winding costing me alot more to do it this way. i dont think it will be that much different prob. 5 hp.

 

M

millatime

New Member

Oct 23, 2003

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Palm Harbor, FL

Feb 13, 2004

#6

• Feb 13, 2004

• #6

DavidCroft said:

I wouldnt even try hi flow cats. First of all they are like $400 a piece. My H-pipe shipped to my door was like $130. Smells like a motor boat, and have to go to the south side of town for inspection, but hey, why pay more for less?

Click to expand...

the carsound (magnaflow) cats sell for 31.50 each on ebay

 

StangJonGT

Founding Member

Jun 2, 2001

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Seattle

Feb 13, 2004

#7

• Feb 13, 2004

• #7

It depends on your modifications. The more radical your engine combo, the more restrictive the cats become. As for bolt-on or mostly stock, the difference is truly negligable, from what I've read. Oh and make your own; hi-flow cats are cheap on ebay, as millatime pointed out.

Jon

 

A

AMMOstang

New Member

Aug 29, 2003

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osan ab, south korea

Feb 13, 2004

#8

• Feb 13, 2004

• #8

I have the bbk x-pipe with high flows (gutted). the only difference i felt before gutting (due to broken stone thingy inside cat) and after was that the car seemed to pull a little harder on the interstate at 80mph in 5th after gutting them.


edit: also after is quite a bit louder

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

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Arkansas

Feb 13, 2004

#9

• Feb 13, 2004

• #9

I lost a tenth with the addition of the Prochamber...

David

 

ADRENLN

Active Member

Apr 16, 2003

2,342

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NJ

Feb 13, 2004

#10

• Feb 13, 2004

• #10

the prochamber has no cats, right? how did you loose a tenth?

 

wms004

Founding Member

Jan 15, 2002

2,864

2

49

Los Angeles

Feb 13, 2004

#11

• Feb 13, 2004

• #11

DavidCroft said:

I wouldnt even try hi flow cats. First of all they are like $400 a piece. My H-pipe shipped to my door was like $130. Smells like a motor boat, and have to go to the south side of town for inspection, but hey, why pay more for less?

Click to expand...

My x pipe has 2 highflow cats and was shipped to my door for 379.. high flow cats are not 400 a piece.. www.magnaflow.com you can order carsound high flow cats

-wade

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

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99

Arkansas

Feb 13, 2004

#12

• Feb 13, 2004

• #12

ADRENLN said:

the prochamber has no cats, right? how did you loose a tenth?

Click to expand...

I lost a tenth from my time (13.9 to 13.8 for EX)...yes there is no cats...