Billy C

I know this is been beat to death , But what is the best way to get rid of this horrable rasp , It sounds so bad even my kids won't ride in the car now ! I have mac mid headers and off road y pipe through a single one chamber flowmaster muffler and single tip ! Would one bullet muffler in the intermedite pipe do It , Or what about replaceing my muffler ! What has worked for you guys ????

FAST LS1

iTrader: (2)

I think most people are putting a bullet in the I-pipe to get rid of the rasp. I've got the same problem now too after getting my Hooker LT's and ory pipe. My frieds all call my car "The Truck" now because of the exhaust sound. It's ok though, cause that's all they ever hear...

<small>[ September 04, 2002, 11:25 PM: Message edited by: FAST LS1 ]</small>

J'sRamAir

A bullet muffler will help a lot with the rasp. My future exhaust setup will be MAC headers, off-road Y, Dynomax bullet in intermediate pipe, and a Magnaflow muffler. Should sound awesome!

<small>[ September 05, 2002, 01:41 AM: Message edited by: J'sRamAir ]</small>

Fireball

iTrader: (21)

bullets in the intermediate muffle the rasp. dual bullets (one on each leg of the y-pipe) kill the rasp <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<img src="http://www.wam.umd.edu/~krzew/exhaust/dynatechfront.JPG" alt=" - " />

Sparky

Hey Fireball, do those bullets steal any ponies over just the regular ORP's?

Thanks!

Mark

Fireball

iTrader: (21)

I've seen several dynos that say no. I ran 444 RWHP thru them and my borla catback (wideopen) with just H/C

2002snortbird

Looking to KILLLLLL the rasp! What part number/brand do you guys weld in the Y? thanx

LARRY01Z28

iTrader: (28)

Yeah Fireball what part number??TTT

Mr. B

iTrader: (1)

I have a Stainess Steel Vortex 3" Cone Muffler which goes in where the Y-Pipe meets the I-Pipe. I didn't use it, but instead went with Random Tech Cats.

It's available to you- for a mere $50! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<img src="http://www.secureperformanceorder.com/dynatechdragstore/images/vortex_graph.jpg" alt=" - " />

http://www.secureperformanceorder.co...ore/vortex.cfm

<small>[ September 06, 2002, 07:15 PM: Message edited by: mrb00formula ]</small>

Sparky

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fireball:
<strong>I've seen several dynos that say no. I ran 444 RWHP thru them and my borla catback (wideopen) with just H/C</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thanks Fireball! Do you have P#'s are these?

Mark

99SSragtop

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fireball:
<strong>bullets in the intermediate muffle the rasp. dual bullets (one on each leg of the y-pipe) kill the rasp <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<img src="http://www.wam.umd.edu/~krzew/exhaust/dynatechfront.JPG" alt=" - " /></strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">is that a FRAM I see <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />

2000silverbullet

iTrader: (5)

Fireball > Do you have 2 or 3 mufflers? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> The 2 that are after the collecters and one under your gas tank? Please explain.....

LARRY01Z28

iTrader: (28)

yeah Fireball tell us about your setup? TIA

Louis

iTrader: (7)

The bullets, as well as the unequal length kill the rasp. Its just a sound ressonance that the LSx cars have. A true dual with a cross over will kill it as well.

Louis

iTrader: (7)

https://ls1tech.com/ubb/ultimatebb.p...=000006#000011

This is a Y pipe that I did a while back.

<img src="http://www.nolke.com/syty/nextphase/lgypipemed.jpg" alt=" - " />

Z-Rated

G2 thats freakin bad, did that kill the rasp? what kind of headers are those? if your cars lowerd have any clearence issues?

Drew

Louis

iTrader: (7)

Drew,
The rasp was gone after that. It was originally a Grot Y that I cut up and grafted my own tubing to. Fitting 3" tubing under the car will be a task. Its not impossible, but its not easy. There is a fine line on a lowered car - too low= scrape.....Too high= frame= KR.

patSS/00

iTrader: (6)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by G2 LS1:
<strong>Drew,
There is a fine line on a lowered car - too low= scrape.....Too high= frame= KR.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Could you explain that last part about too high?

Blue Fire

dam what do you use to clean that under body with it look's pretty nice under there. i been looking for 1 Mil dam year's for something to keep it clean with and never found nothing yet. well that work's great anyway <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> Thank You <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Louis

iTrader: (7)

if the Y pipe is too low, on a lowered car of course, it will scrape over some speed bumps. If the Y pipe is too high in relation to the car, it will bang the floorboard. This banging will trigger the Knock Sensors, thus killing some HP.