• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Is getting a midpipe with cats worth it?

  • Thread starter Thread starter Blue70
  • Start date Start date Jan 2, 2005
B

Blue70

Active Member
Nov 1, 2004
160
28
38
Wilmington NC
Jan 2, 2005
#1
  • Jan 2, 2005
  • #1
I have flows on my 03 GT and was thinking of picking up a midpipe, but I am WAY to lazy to get under the car to swap it out twice a year, so I was wondering if a pipe with cats is worth putting on?
 

StangPro

New Member
Sep 30, 2004
441
0
0
Roseville, MI
Jan 2, 2005
#2
  • Jan 2, 2005
  • #2
It's usually more worth it than an off road pipe, both in performance and less stress.
 

onesticker

New Member
Feb 19, 2003
222
0
0
Jacksonville,FL
Jan 2, 2005
#3
  • Jan 2, 2005
  • #3
Not only will you get some hp gains, you will get the awesome sound.
 

BlackMach2

New Member
Dec 3, 2004
15
0
0
Mass
Jan 2, 2005
#4
  • Jan 2, 2005
  • #4
I think swapping out the mid-pipe to a catted aftermarket one is worth it, the sound is awesome. Though I did feel a difference on the top end, I did experience some low end torque loss after installing my MRT catted H-pipe, but it all came back and more after installing a PHP intake spacer.

Thumbs up for MRT's H-pipe, great fit and quality, sound is perfect, and I've yet to see a check engine light (knock on wood)!

 

twogts4us

15 Year Member
Apr 1, 2004
4,188
12
79
Dunedin, FL
Jan 2, 2005
#5
  • Jan 2, 2005
  • #5
Another thumbs up on the MRT H ! Quality piece! No noticable loss of torque though...? A catted mid in definately worth it...minimal loss to an O/R pipe, mostly just less volume.
 

Bill9000

Member
Oct 15, 2004
182
0
16
Jan 2, 2005
#6
  • Jan 2, 2005
  • #6
my personal opinion, changing out the midpipe is the best thing you can do for sound, and definitely a performance gain. I have the BBK O/R H, and LOVE it, perfect fit. I was debating if it was worth getting a aftermarket H-pipe, and it definitely is!
 

RysRed96GT

I like it FURRY!!!
Founding Member
Apr 9, 2001
3,207
0
56
Pasadena, MD
Jan 2, 2005
#7
  • Jan 2, 2005
  • #7
i really like my mustangtuning catted x. i get lots of compliments on it. sounds great with flows, not too loud but sounds sweet IMO. and its the cheapest catted mid-pipe out there.
 

GDawg

Founding Member
Mar 22, 2002
1,469
19
68
Nevada
Jan 2, 2005
#8
  • Jan 2, 2005
  • #8
twogts4us said:
Another thumbs up on the MRT H ! Quality piece! No noticable loss of torque though...? A catted mid in definately worth it...minimal loss to an O/R pipe, mostly just less volume.
Click to expand...

So where can you pick up an MRT H pipe with cats? And I assume you do pass smog... right?
 

trinity_gt

10 Year Member
Jan 31, 2003
3,125
81
99
Canada
Jan 2, 2005
#9
  • Jan 2, 2005
  • #9
Another thumbs-up for the MRT catted H. Love the sound (no drone, no raspiness), fairly good install (a wee bit short on passenger side but no problem) and no CEL.

In fact, the car went in for an emissions test ("Drive Clean" in Ontario) before I stored it for the winter and passed with little fanfare:

40km/h:
HC: 48ppm (limit 60)
%CO: 0.00 (limit 0.34)
NO: 93 (limit 443)

idle:
HC: 43ppm (limit 150)
%CO: 0.02 (limit 0.70)
NO: n/a (limit n/a)

As well, mine gained 8.1rwHP with this mod.

Good mod.
 

twogts4us

15 Year Member
Apr 1, 2004
4,188
12
79
Dunedin, FL
Jan 2, 2005
#10
  • Jan 2, 2005
  • #10
GDawg said:
So where can you pick up an MRT H pipe with cats? And I assume you do pass smog... right?
Click to expand...
Well they did sell them here, at PartShopper, but just after I bought mine about 1 month ago, they stopped carrying them...don't know why, I just don't see them on the website anymore.
You can still buy it directly from MRT - http://www.mustangracing.com/
No smog tests anymore here in FL, but it is supposed to be able to pass the test.
 

RED92VERT

Founding Member
May 31, 2000
74
0
0
Jan 2, 2005
#11
  • Jan 2, 2005
  • #11
I have an SLP offroad X, the cats bolt in and out. Its much easier than switching out the whole pipe. There is a big diff between the highflows and the offroad. I barely even use my cats anymore.
 

twogts4us

15 Year Member
Apr 1, 2004
4,188
12
79
Dunedin, FL
Jan 2, 2005
#12
  • Jan 2, 2005
  • #12
RED92VERT said:
I have an SLP offroad X, the cats bolt in and out. Its much easier than switching out the whole pipe. There is a big diff between the highflows and the offroad. I barely even use my cats anymore.
Click to expand...
Yeah, this was my other choice - if I had emissions testing, I would have gone with the SLP 'modular' X pipe. It also works with their long tubes. The last midpipe you'll ever buy! And it should sound great with Flows.
 

pdl2flr

New Member
Dec 17, 2003
154
0
0
Leesburg, VA
Jan 2, 2005
#13
  • Jan 2, 2005
  • #13
Another thumbs up for the MRT catted mid-pipe. Out of the bolt-ons I have, I felt the biggest gain from the MRT. Plus it sounds great!! Install and fit were perfect for me. I ordered mine from www.Ninosport.com
 

crazynorwegian

20+ Year Stangneter
Nov 6, 2003
267
0
16
azusa, ca
Jan 2, 2005
#14
  • Jan 2, 2005
  • #14
Blue70 said:
I have flows on my 03 GT and was thinking of picking up a midpipe, but I am WAY to lazy to get under the car to swap it out twice a year, so I was wondering if a pipe with cats is worth putting on?
Click to expand...


you have to get your car smog tested twice a year?
 

Pughman

Member
Dec 25, 2004
295
2
18
in a galaxy far far away"MISSOURI"
Jan 2, 2005
#15
  • Jan 2, 2005
  • #15
smog test ? what's that ? ..hahha ! i love the sticks...any way i love my UPR Off Road X-Pipe ,H-pipes are a thing of the past. Like a rotary dial telephone they are just flat out old news. and i got mine for $139.95
 

RED92VERT

Founding Member
May 31, 2000
74
0
0
Jan 2, 2005
#16
  • Jan 2, 2005
  • #16
twogts4us said:
Yeah, this was my other choice - if I had emissions testing, I would have gone with the SLP 'modular' X pipe. It also works with their long tubes. The last midpipe you'll ever buy! And it should sound great with Flows.
Click to expand...

The only downside to the SLP pipe is it hangs low. I scrape all the time since my mach is lowered.
 
B

Blue70

Active Member
Nov 1, 2004
160
28
38
Wilmington NC
Jan 3, 2005
#17
  • Jan 3, 2005
  • #17
crazynorwegian said:
you have to get your car smog tested twice a year?
Click to expand...

No, no smog testing here untill 2006, and then it will only be OBDII cars. If I had the pipe with no cats I would be under it once to put the stock one back on, then a second time after testing to put the O/R pipe back on.
 
You must log in or register to reply here.

Similar threads

Resolved Three way cat converters..?
  • PonyGTrider
  • Nov 2, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
256
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 2, 2025
PonyGTrider
P
Air Fuel ratio bung location.
  • Praetorious
  • Feb 7, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
39
Views
911
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 11, 2026
Noobz347
Fox BBK X-pipe replacement Cat?
  • TIGGER
  • Aug 26, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
275
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 26, 2025
AeroCoupe
Mufflers for stock 5.0
  • MrPerfect2
  • Dec 11, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
220
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 12, 2025
Mustang5L5
Suspension End link replacement size
  • Teen'93stang5.0
  • May 12, 2026
  • Fox 5.0 Mustang Tech
Replies
6
Views
128
Fox 5.0 Mustang Tech May 20, 2026
Teen'93stang5.0
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?