took my cat off

Started by marcus18, April 08, 2003, 08:53:05 PM

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marcus18

I love it seams to spool up faster and all around have more get up.

4PASNU

I've been considering doing the same thing.  It's a cheap mod.  It sounds like it was worth it :D .  Did you have a shop do it or did you do it yourself?
Mike Ruckhaber
Currently own a 1990 Black TGP Stock.
Previous owner of a 1989 TGP: FFP Dogbones, K&N, KVR rotors/pads. Exhaust: 3" hi-flo cat, Dynomax 2.5" Ultra Flo mufflers. 
2000 GTP

1trucavalier

I can't see a shop doing it because its illegal.  I may take mine off soon.
hi-flow intake, straight pipe, dsm bov, 24lb inj,  polished upper intake, turbo, and frt valve cover.

The Burning Rom

Quote from: 1trucavalierI can't see a shop doing it because its illegal.  I may take mine off soon.

Some smaller local shops may do it..but they usually request payment in cash and don't give you a receipt.  8)
1989 Grand Prix TGP Coupe - Time For The Mods...
1990 Grand Prix TGP Coupe - In Need Of A Fuel Pump
1990 Grand Prix TGP Coupe (#2) - Motorless..
1990 Grand Prix LE Coupe - Awaiting The Scrapyard
1992 Grand Prix SE Coupe - "Woods Car"
1999 Grand Prix GT Coupe - Sits Under A Cover 364 Days A Year
1976 Dodge D700 - Dump Truck
1989 Dodge W100 Short-Box - Restoration/Diesel Project
1990 Dodge W250 - Plow Truck/Resto Project
1994 Dodge Ram 2500 8.0L V10 4x4 - Tow Rig
2002 Chrysler 300M

1trucavalier

LOL! yeah i know.  i was talking about midas, meineke etc...  I asked them and they got all scared.  I was like c'mon man I am not gonna tell!!  I was actually told you are not even supposed to replace a cat on a vehicle with less than 80k unless it is totally rusted out or physically damaged.   They claimed it was a fedaral law.  I had 165K on my cav so they didn't have a problem. :D
hi-flow intake, straight pipe, dsm bov, 24lb inj,  polished upper intake, turbo, and frt valve cover.

mfewtrail

Quote from: 1trucavalierLOL! yeah i know.  i was talking about midas, meineke etc...  I asked them and they got all scared.  I was like c'mon man I am not gonna tell!!  I was actually told you are not even supposed to replace a cat on a vehicle with less than 80k unless it is totally rusted out or physically damaged.   They claimed it was a fedaral law.  I had 165K on my cav so they didn't have a problem. :D

I've heard that it was 50K for the law about removing/replacing the catalytic converter...but maybe you're right. Also in the south, most shops are more than willing to remove your cat for you although a select few will not. They also give receipts, but fail to inlcude "replacement of catalytic converter with straight piping" or the like... :lol:
'93 SE, '90 Black/tan TGP, & '90 Red/tan TGP

marcus18

I did it myself. I jacked it up used a air grinder to start a groove the used a sawzall with a metal cutting blade to cut the rest. I bought a 18 inche piece of flex pipe and one clamp( the pipe came with one clamp). It's leaking alittle so you may want to get a longer piece. I have 1/4 inch to clamp to on each side. cost me $9.02 for the parts.

the little leaks adds to the sound. from inside it sounds like a mustang is next to you when at a stop and punching it.
marcus

1trucavalier

is this on a TGP?  I just have straight pipe with cat and its soooo damn loud!  I can only imagine what it sounds like when I remove that 14yrs old cat.
hi-flow intake, straight pipe, dsm bov, 24lb inj,  polished upper intake, turbo, and frt valve cover.

TGPRobNY

I used a sawzall to cut BEFORE the cat at a straight section, unhooked the rubber donut downstream and then used long drill bits to break up the guts. Then used a pipe to break for the final breakup up. I used a heavy duty shop vac to remove everylast piece in there...ie no rattle when hit.  A good flashlight with a BEAM will allow you to see clearly inside. Then a bought a butt connector, 2 clamps and done!  More pickup and a growl. Next the rear mufflers will be replaced by Dynomax 40's and tandem round pipes on each side, for a total of 4 pipes (3" ea).

1trucavalier

Its official! mine is coming off this week :D !
hi-flow intake, straight pipe, dsm bov, 24lb inj,  polished upper intake, turbo, and frt valve cover.