so I took off the offroad....

seco · 11-09-2007, 05:27 PM

I've been running offroad exhaust on the stangs since 2000. Love the sound - but this past weekend I finally gave in and removed the X pipe and put the cats back on. I'm a parent - my pride and joy little man is fixing to hit 2 years old and it's been bothering me that he had to hear all the unnecessary rumble. The car was too loud for his little ears. I'm now having to drive him to day care everymorning - so in went the cats. Anyways...... I've actually felt a little loss in power and the rpms hang when dropping. The funny thing is now I'm finding myself hard on the pedal just to make the stang sound mean - crap it's affecting my miles per gallon! So anybody running high flow cats? How does it compare to stock? What brands you running?

thatdavidkid · 11-09-2007, 06:33 PM

i'd think about maybe having a different muffler set welded in.. maybe some magnaflows.. they're pretty quiet... but idk what you have now so it's kinda hard to compare

myblack93gt · 11-09-2007, 07:05 PM

Ya, mufflers make a big difference!

Agent Jones · 11-09-2007, 07:18 PM

what type of mufflers are you running now? also what year car is it

seco · 11-10-2007, 09:18 PM

Quote:

Originally Posted by Agent Jones

what type of mufflers are you running now? also what year car is it

flowmaster 2.5" 2chambers - 3.5" tail tips - don't know exactly what type of flows - picked them up from dallas mustang - I'm thinking they are the delta flows they sell for $65 a piece - 99 4.6L 5 speed - didn't know if I should go high flow cats or a less restricted muffler for better sound - just don't want to put the off road back on

tiptone · 11-10-2007, 09:41 PM

I have a Bassani X with cats coupled with Bassani cat-back. It's still plenty loud, but not near as overpowering inside as an off-road H + Flowmasters were in my last Mustang. It's only slightly louder at idle, but very loud at WOT.

96greengt · 11-10-2007, 10:08 PM

I too have the Bassani o/r x with their mufflers and stock manifolds (for now) but when I switched from Flowmaster to Bassani, it is still loud, but nowhere as to what it used to be inside the car with the Flows and Bassani X.

95 GTS · 11-15-2007, 08:21 AM

i am confused, do you want it louder? you just made it quiter for your kid right? Is that the whole point?

I am all for having cats with the kiddo so he doesnt get fumes.

are you wanting it some where in between or just something that gets loud at wot?

seco · 11-15-2007, 12:36 PM

actually 50/50...... I didn't like the fumes either for my little man - they were too strong especially when we pull into the garage - was wanting something a bit louder at wot - the offroad sounded good but was just too loud

95 GTS · 11-15-2007, 12:54 PM

I;ve hear the ford racing mufflers and they are loud and sound really good. paired with the stock midie you might get the sound you want without the smell.

2k4mk1 · 11-15-2007, 02:07 PM

I would buy a set of hi flow after market cat have um welded into the O/R x and put it back on.
That would most likely give ya what you are after. As the cats would tone it down a little and eliminate the fumes at the same time.

Also the stock H will sound way different than an X catted or not.

2k4mk1 · 11-15-2007, 02:09 PM

like these under 60 ea
Buy 1999 Ford Mustang Catalytic Converter

seco · 11-16-2007, 09:27 AM

Quote:

Originally Posted by 2k4mk1

like these under 60 ea
Buy 1999 Ford Mustang Catalytic Converter

$54.30 a pop aren't bad at all - I thought they were more expensive - yeah i got a MAC H pipe and a UPR X pipe .... I'll probably throw the X back on and get the cats installed inline - good idea - I guess it would be cheaper than buying a new high flow catted mid pipe

2k4mk1 · 11-16-2007, 09:35 AM

Quote:

Originally Posted by seco

$54.30 a pop aren't bad at all - I thought they were more expensive - yeah i got a MAC H pipe and a UPR X pipe .... I'll probably throw the X back on and get the cats installed inline - good idea - I guess it would be cheaper than buying a new high flow catted mid pipe

Yeah I think even having to pay to get um welded in it will be less than a new x pipe.
My catted SLP X was about 4 bills new

11-09-2007, 05:27 PM	#1
seco 4 valve FTW Join Date: Apr 2005 Location: DALLAS Posts: 929 Trader Rating: (0)	so I took off the offroad.... I've been running offroad exhaust on the stangs since 2000. Love the sound - but this past weekend I finally gave in and removed the X pipe and put the cats back on. I'm a parent - my pride and joy little man is fixing to hit 2 years old and it's been bothering me that he had to hear all the unnecessary rumble. The car was too loud for his little ears. I'm now having to drive him to day care everymorning - so in went the cats. Anyways...... I've actually felt a little loss in power and the rpms hang when dropping. The funny thing is now I'm finding myself hard on the pedal just to make the stang sound mean - crap it's affecting my miles per gallon! So anybody running high flow cats? How does it compare to stock? What brands you running? __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30's, Moser 31 spline axles, Eaton carrier, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, MAC O/R Hpipe, RAM power grip dual friction.....

11-09-2007, 06:33 PM	#2
thatdavidkid looks mean, workin' on the fast Join Date: Oct 2006 Location: Denton Posts: 3,803 Trader Rating: (0)	i'd think about maybe having a different muffler set welded in.. maybe some magnaflows.. they're pretty quiet... but idk what you have now so it's kinda hard to compare __________________ t-5 swap, billit quadrant, upr firewall adjuster, steeda tri-ax, custom jb tool and fab one off subframe connectors, 8.8 w/posi and 4.10's with 5 lug axles, tubular upper control arms, southside lowers, and pbr twin piston front calipers with "snowflake" wheels

11-15-2007, 08:21 AM	#8
95 GTS Back in the saddle again Join Date: Feb 2006 Location: Texas Posts: 1,484 Trader Rating: (0)	i am confused, do you want it louder? you just made it quiter for your kid right? Is that the whole point? I am all for having cats with the kiddo so he doesnt get fumes. are you wanting it some where in between or just something that gets loud at wot? __________________ 2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ

11-15-2007, 12:36 PM	#9
seco 4 valve FTW Join Date: Apr 2005 Location: DALLAS Posts: 929 Trader Rating: (0)	actually 50/50...... I didn't like the fumes either for my little man - they were too strong especially when we pull into the garage - was wanting something a bit louder at wot - the offroad sounded good but was just too loud __________________ SLP loud mouth cat-back, Pro 5.0 short throw, 4.30's, Moser 31 spline axles, Eaton carrier, Steeda sport springs, chrome 18x9 18x10 Saleens, NT555's 285/40/18 rear, MAC O/R Hpipe, RAM power grip dual friction..... Last edited by seco; 11-15-2007 at 12:44 PM.

11-15-2007, 12:54 PM	#10
95 GTS Back in the saddle again Join Date: Feb 2006 Location: Texas Posts: 1,484 Trader Rating: (0)	I;ve hear the ford racing mufflers and they are loud and sound really good. paired with the stock midie you might get the sound you want without the smell. __________________ 2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ

11-09-2007, 07:05 PM	#3
myblack93gt Registered User Join Date: Mar 2006 Posts: 715 Trader Rating: (0)	Ya, mufflers make a big difference!

11-09-2007, 07:18 PM	#4
Agent Jones Get It? Join Date: Mar 2006 Location: San Antonio Posts: 7,092 Trader Rating: (1)	what type of mufflers are you running now? also what year car is it

11-10-2007, 09:41 PM	#6
tiptone Registered User Join Date: Oct 2007 Location: Montgomery Posts: 19 Trader Rating: (0)	I have a Bassani X with cats coupled with Bassani cat-back. It's still plenty loud, but not near as overpowering inside as an off-road H + Flowmasters were in my last Mustang. It's only slightly louder at idle, but very loud at WOT.

11-15-2007, 02:07 PM	#11
2k4mk1 My name is ED,My mom calls me special,I dont know why? Join Date: Dec 2003 Location: SanAntonio Posts: 6,214 Trader Rating: (2)	I would buy a set of hi flow after market cat have um welded into the O/R x and put it back on. That would most likely give ya what you are after. As the cats would tone it down a little and eliminate the fumes at the same time. Also the stock H will sound way different than an X catted or not. __________________ 04 Oxford White MACH1,5 SPD with IUP,K&NAircharger Borla Stingers,SLP Catted X pipe,Tri-ax,SCT Flashtune,Max Mtr Spt 4 bolt adj C/C plates, Drilled/Slotted rotors all 4 corners 281 rwhp on Mustang Dyno,306 rwhp on a Dynojet 94 Black Lightning Daily Driver&85GT FACH1 Project under construction

11-15-2007, 02:09 PM	#12
2k4mk1 My name is ED,My mom calls me special,I dont know why? Join Date: Dec 2003 Location: SanAntonio Posts: 6,214 Trader Rating: (2)	like these under 60 ea Buy 1999 Ford Mustang Catalytic Converter __________________ 04 Oxford White MACH1,5 SPD with IUP,K&NAircharger Borla Stingers,SLP Catted X pipe,Tri-ax,SCT Flashtune,Max Mtr Spt 4 bolt adj C/C plates, Drilled/Slotted rotors all 4 corners 281 rwhp on Mustang Dyno,306 rwhp on a Dynojet 94 Black Lightning Daily Driver&85GT FACH1 Project under construction

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