Those who have a complete stock exhaust and remove the second set of cats say the exhaust note increase was just what they were looking for.
Those who have a complete stock exhaust and remove the second set of cats say the exhaust note increase was just what they were looking for.
2004 Silver Birch 300B
Build date:9/29/2003, Adopted on 12/02/05
Exhaust by Greg
13.630 @ 100.49 mph (11/21/10)
2015 Ford Focus SE Sport FWD
2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
2010 Ford Fusion Sport FWD
1989.5 Ford Mustang 5.0 LXsport
No rear cats on my car. Pretty quiet at idle gets a little rowdy at WOT. Still not loud enough to my liking.
I love the sound of mine rear cat delete and aero turbines 2525
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Thinking I will try the cat delete first, really don't want too loud, my 2000 Stang I just sold was LOUD! So loud it was hard to talk on the phone on the highway (of course the 3.73 gears keeping the revs up didn't help that either) so now kind of digging the quietness. Also thought about installing electric exhaust dumps in the cat delete pipe so I can flip a switch and go loud when it's time to play! Even thought of the perfect spot to put the switch, forward end of the overhead console by the windshield, nice and hidden!
This was My GM exhaust set up. No cats, 2010-11 Mustang H Pipe w/ dump tips out the MagnaFlows.
2004 - MM 1618 - DTR 537
The shop I went to only charged me $80 to have the cats cut & pipe welded in it's place.
2005 Mercury S55
Saleen Supercharged 2V
I've got just the rear cat delete. It really gives the car a nice growl on acceleration but cruising there's almost no difference between no cats and stock. I cut the cats out and welded in straight pipes. I think it cost me $25 bucks in parts all told.
I just had my rear cats removed ,I love it wish I would of done it sooner l don't listen to the radio anymore I just listen to my exhaust notes and yes it does give it a little more get up and go with them removed .
My rear cat delete.. 2.5" pipe, x-pipe super 10s
Sent from...... The dyno making music..
SOLD 12/31/2021
Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.
Rear cat delete with flowmaster. 40s on my towncar. Mustang has duel flowmasters wth dump tips coming soon .
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Lifespeed
2004 Silver Birch Marauder 130K miles
Wilwood Aero6 F, NMDP R brakes, Penske 7500DA shocks, Hypercoil 600lbs F and Grand Marquis R air springs, Addco tubular sway bars, Metco control & Watts, 31 sp axles, Stainless Works cat-back exhaust, Lidio tune, American Racing AR883 9.3" 50mm F 10" 59mm R 20" wheels, Pirelli P-Zero 265/35-20, 275/40-20 tires
Coming soon: Livernois 5.0L stroker, ADTR/Vortech V2 intercooled SC, Silverfox trans and Circle D converter
My passenger side rod that the cut out door mounts to broke clean in half when I was leaving the hotel in Louisville for my 5 1/2 hr ride home with my wife... We stopped and removed the broken shaft and opened the drivers side to balance out the engine. It was one VERY long ride home. She's a trooper!
Needless to say they were removed, rebuilt, and shelved..
Builder Of Badassery
SOLD 12/31/2021
Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.
Here's a clip of when I first did mine.
Rear cat delete, custom xpipe, flowmaster 40 Series mufflers, stock tips
http://youtu.be/JW6hxnGkgKY
SILVER 04 BLACK INTERIOR
JLT TRU COLD AIR
FLOWMASTER 40SERIES
MOONROOF
HEATED SEATS
6 DISC CHANGER
4.10 rear
Ford racing Cobra trac-loc
Lidio tune
31 spline axles
That's the best sounding I have heard so far!
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