I had a local exhaust shop remove the downstream cats this past weekend. It sounds amazing. Its got just the perfect pitch and volume you'd want on a daily driver. I could not be happier with the results. I highly recommend this!
Senior Member
I had a local exhaust shop remove the downstream cats this past weekend. It sounds amazing. Its got just the perfect pitch and volume you'd want on a daily driver. I could not be happier with the results. I highly recommend this!
96 Mark VIII LSC03 Marauder 300A07 FLHTC
Get down or lay down
One of the best mods I did
03 300a. black #1695 of 7839 born 6/20/02.
Adopted 3/31/11. Sold
03 300a black #1199
TERMINATOR SWAP
430rwhp. Done by mo's
Now resides at---------->
I agree. I did this after upgrading the mufflers as well and love it EVERY time I'm in th ecar...well worth the effort...
marauderless
It's a nice small detail mod.
392 Challenger YELLOW JACKET
12.28@114 stock
Senior Member
I love the sound even more, while I'm watching someone drive away in it. You get a better idea of what everyone else hears, and it's Awesome!
Buying things I don't need, with money I don't have, to impress people I don't know!!!
Production #1489 of 3213/#516 of 997
Senior Member
Will it throw a code once removed?
94 Supercharged Miata
92 5.0 Vert
92 5.0 vert summer edition
93 5.0 vert yellow feature car
05 GT vert
81 Fairmont, Vortech, 302, T-56
03 Rubi
BiRDMAN
No. The second set of cats are behind the rear O2 sensor.Originally Posted by svtrichie
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
Senior Member
Deleted mine last year. Now I need more loudness.
Senior Member
Love removing mine.
03MM 300A Build date 06/03/02 Production #446Tilogy S/C Kit#4 387RWHP 364RWTQ, Addco front and rear sway bars,Factory Spoiler,Auto,Auto Meter Gauges ,Boost,Air/Fuel,Trans. Temp. Oil and Volt. All are real working gauges now.Badgeless Grill,J Mod
Metco D/S Loop,Boxed Lower Rear Control Arms
New Made Upper Rear Control Arms
Boxed Watts Link,Ford Finned Rear End Cover
Colex Caps: Oil,Water,Enter Cooler,Power Steering,Master Cylinder and Windshield Washer
Daniels Coil Covers and Buttons,Nitto 255/45 front
Widen Rear Wheels with 295/45 Nitto's,Zack's Big Brakes, Rear Drilled a slotted rotors,TCE Braided brake lines,Pro Guard Skid Plate,Summit trans pan, New Exhaust.K&N Cold Air Intake,JLT Catch Can,fastblackmerc door seal plates, pedal covers and Mustang dead pedal.
Senior Member
I have thought of removing mine to reduce backpressure. I don't want mine to be louder though. decisions decisionsI love power but hate noise ! most likely too much time on boats with Detroit diesels. anyways ????
Super Touring
You could do it, replace factory mufflers with 25" long Dynomax super turbos.I have thought of removing mine to reduce backpressure. I don't want mine to be louder though. decisions decisions
Factory mufflers are a simple turbo muffler design. It would be about the same sound wise (and you'd get a bit more power)
Old cats (2) are worth $50 each. Super turbo's are only like $38 each. You'd make money doing this.
2021 F150 XLT Super Crew short bed - no chrome! - 3.5 Ecoboost 400hp/500tq - 36 Gal tank (600 miles) - 4x4 FX4 Offroad + Max Tow - 3.55 Locker - 10 Speed - Pro Power 2kva - 24mpg @ 80 Ford is still the best.
03 300A - Number 1727 - Super Touring - 10k in the best upgrades - 13.8@99 N/A - SOLD- STAP was so much fun, loved meeting you all and racing.
Senior Member
interesting... I have a 3" dynomax (forgot length) on my F250 w/460 single exhaust no cat. loader than I would like at idle but very nice underway. Most likely use my 03 for a test bed first. Probably goning a sell it anyways. then I can get my 04 the way I want the first time. thanks for food for thought
Sick-Speed play toy
Best sound my car ever made was rear cat delete and Magnaflows.
This Stainless Works exhaust I have now is crap and can't wait to modify it. What a complete waste of money.
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.
S/C 20" MINI TUBBED WHEEL GUY!
If i would have modded my stainless works exhaust to my liking there wouldn't have been anything left , a decent system , but not for me.
Im going to run a 3" stainless steel tubing , Magnaflow 14" long 4" (round) resonators in place of the cats , and Magnaflow 28" long mufflers with/vband clamps for as quiet as i can get exhaust.
04 MERCURY MARAUDER build date:02/11/04ITS ALIVE !!!!!!!!
STAY TUNED!!!!!!!!!!
**WHIPPLE 4.0L CRUSHER!**0000 (FOR NOW) RWHP
VISIT MY GARAGE FOR A FULL LIST OF MODS
Senior Member
video please....and may i ask what shop charged you?
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