jss

http://www.lindseyracing.com/mm5/gra...EXH-53009l.jpg

I dont think these cats matter since there is no arrow for direction but wanted to confirm

bumper87

that thing looks restrictive>> Have you been driving around without a cat? Im interested to know what the lag diff will be once you instal it. I installed a magnaflow cat and can;'t stand it. Just curious with your experience

jss

It's 3" as good as I am going to get . I have a test pipe but never used it . I want a street legal car so cat is a must

bumper87

what year is your car? what size is your test pipe? and is it stainless?

jss

89
3"
non SS

Paulyy

depends on the cat, can be a 100-200 rpm difference.

bumper87

Nice, Just wondering because im getting a 3" SS one custom made and its not too cheap. Just got my cat in yesterday and it looks great, Almost no resriction. But my car is an 87 so I do not need an etest, just a cat in place so I don't get another ticket.

Lightningmcnulty

I was going to install a 3.5 inch cat in my 3 inch system, hoping to reduce restriction that way and still be 'legal'

jss

AHHH wish I had 87 for that reason but could not find one at the time so I got the 89 to play with.

bumper87

you could go this route as well

http://www.ebay.com/itm/5-inch-Diame...r#ht_623wt_919

Willard Bridgham 3

Pressure drop new on most cats is approx 2.5psig. If they don't have a high pressure drop, they won't work.

gregeast

To answer the OP's original question, I have the same cat and could not find any indication of direction on it. Asked around a bit on RL and the consensus was that it was not directional. As I vaguely recall, one end was slightly more tapered than the other so I put that end towards the front of the car for less drag. Picked up 5 mph on the top end

jss

I asked LR it does not matter he just said to install longer end towards rear of car

jss

Silly question but LR exhaust hangs under the left axle correct not above like oem set ups

gruhsy

here you go