best way to make exhaust louder?

momonapua2003 · 01-06-2005, 12:50 AM

i got a 99 gt, cai, 40series flows with stock setup. the prob is that its just not loud enough for my taste. my dads got catted bassani X with magnaflows and his is so much louder. would take off the 4 cats and putting on high flows help? i live in southern cal....off-road isnt really an option

Det289 · 01-06-2005, 01:02 AM

Go straight headers that should be plenty loud enough. what size tube do they use on stock setups. Do you know if your 40 series are chambered or anything?

momonapua2003 · 01-06-2005, 10:05 AM

i live in southern cal, i cant just run headers. like i said i got stock setup which is 2.25 pipes. also it is 2 chamber(40series). my thought is if i put high flows cats it would make it louder but not extremely loud. what do u think?

Det289 · 01-06-2005, 01:41 PM

I was just kidding about the open headers thing...high flow cats would help out, also a larger pipe would help. if you went with a catback system and went with high flow cats that should help solve your prob.

LincolnPaul · 02-01-2005, 02:23 PM

use 3 1/2 inch all the way you only need 2 cats on a mustang thay will still pass emissions stock mustangs have 4 cats. 4 inch tips and headers or not will be hella loud dont get high flow cats cuts down on hp need the back pressure

blue00gt · 02-01-2005, 03:12 PM

You'd lose a ton of low end if you went 3.5", plus the most of the biggest aftermarket catbacks are 3" (which is still too big unless you have forced induction). The easiest way to make it loud is to run an offroad H- or X-pipe. But if you need to run cats a crossover pipe with just 2 high flows will definitely help. My friend runs longtubes with a catted H and MAC mufflers and his is really loud for a catted car.

xxxBlakexxx · 02-18-2005, 08:44 PM

Just get an SLP Loudmouth Catback. Problem solved!

Orange97GTVert · 02-19-2005, 12:53 AM

There is an 04 Cobra in my town with SLP Off-Road X Pipe and SLP Loudmouth catback. I saw him at the carwash talking to my son, I left and drove home, about a mile away. When I was getting out of my car, I heard him leave the carwash and KNEW it was him, Chad said he wasn't even getting on it!

01-06-2005, 12:50 AM	#1
momonapua2003 Registered Member Join Date: Dec 2004 Posts: 6	best way to make exhaust louder? i got a 99 gt, cai, 40series flows with stock setup. the prob is that its just not loud enough for my taste. my dads got catted bassani X with magnaflows and his is so much louder. would take off the 4 cats and putting on high flows help? i live in southern cal....off-road isnt really an option

01-06-2005, 01:02 AM	#2
Det289 Registered Member Join Date: Feb 2003 Location: Rio Rancho, NM Posts: 15	Re: best way to make exhaust louder? Go straight headers that should be plenty loud enough. what size tube do they use on stock setups. Do you know if your 40 series are chambered or anything?

01-06-2005, 10:05 AM	#3
momonapua2003 Registered Member Join Date: Dec 2004 Posts: 6	Re: best way to make exhaust louder? i live in southern cal, i cant just run headers. like i said i got stock setup which is 2.25 pipes. also it is 2 chamber(40series). my thought is if i put high flows cats it would make it louder but not extremely loud. what do u think?

01-06-2005, 01:41 PM	#4
Det289 Registered Member Join Date: Feb 2003 Location: Rio Rancho, NM Posts: 15	Re: best way to make exhaust louder? I was just kidding about the open headers thing...high flow cats would help out, also a larger pipe would help. if you went with a catback system and went with high flow cats that should help solve your prob.

02-01-2005, 02:23 PM	#5
LincolnPaul Registered Member Join Date: Feb 2005 Location: MO Posts: 1	Re: best way to make exhaust louder? use 3 1/2 inch all the way you only need 2 cats on a mustang thay will still pass emissions stock mustangs have 4 cats. 4 inch tips and headers or not will be hella loud dont get high flow cats cuts down on hp need the back pressure

02-01-2005, 03:12 PM	#6
blue00gt Mustang Addict Join Date: Jan 2001 Location: McKinney, TX Posts: 1,294	Re: best way to make exhaust louder? You'd lose a ton of low end if you went 3.5", plus the most of the biggest aftermarket catbacks are 3" (which is still too big unless you have forced induction). The easiest way to make it loud is to run an offroad H- or X-pipe. But if you need to run cats a crossover pipe with just 2 high flows will definitely help. My friend runs longtubes with a catted H and MAC mufflers and his is really loud for a catted car. __________________ Strike down the unroadworthy! 2000 GT Atl. Blue: '03 Cobra motor - 465rwhp/473rwtq, T-56 6-speed, full MM TA/PH & tubular K-member suspension, Saleen body, 17" Torq-Thrust II's, M/T ET Street radials, and lots more '94 Rio Red Cobra: All the bolt-ons, 3.73s

02-18-2005, 08:44 PM	#7
xxxBlakexxx Registered Member Join Date: Sep 2003 Location: Mountaintop, PA Posts: 634	Re: best way to make exhaust louder? Just get an SLP Loudmouth Catback. Problem solved! __________________ "Children should not get cancer, but they do!" Help a child with cancer at www.homeoftheirown.org My Stang: 2000 Mustang GT Vert - Steeda Tri-Ax Shifter; C&L Plenum; BBK 75 mm TB; Steeda Strut Tower Supports; Black "Deep Dish" Bullet Wheels; FRPP 4.10's; Steeda Subframes; SLP Catback & SLP Catted X-Pipe; SCT 4 Position Chip with 3 custom tunes; Steeda CAI; Venom-1000 Nitrous; Roush Stage 3 Body Kit; Bullet Suspension Package (on the way)

02-19-2005, 12:53 AM	#8
Orange97GTVert Mustang Fanatic Join Date: Dec 2003 Location: Tyler, TX Posts: 568	Re: best way to make exhaust louder? There is an 04 Cobra in my town with SLP Off-Road X Pipe and SLP Loudmouth catback. I saw him at the carwash talking to my son, I left and drove home, about a mile away. When I was getting out of my car, I heard him leave the carwash and KNEW it was him, Chad said he wasn't even getting on it! __________________ Harold Phillips www.mustangsofeasttexas.org 1997 Mustang GT Convertible, 4.6L Auto, Autumn Orange w/Saddle Tan Top & Leather Interior, Styling Bar, 17 X 9 Polished Cobra R's on Nitto NT 555's, Ford Racing Bullitt Suspension package, Mac CAI, Steeda UDP's, Flowmaster 40 Series Catback, SCT X-Calibrator II, Zaino Shine, 7 time Show Winner, driven daily

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