melman911

Difference between 100 and 200 cell cats? Sorry new to this. Thanks for any reply.

face-ache

Ok I'll bite, difference is 100cell, seriously, I would say less material and more free flow in the 100 cell count.

melman911

Thanks. Not a trick question. Just ignorant to some things (not everything)

RDS928S

As far as the Fabspeed sport cats-I talked to them yesterday and no dyno charts available. However they do have dyno info on their cat bypass pipes on a 3.8 engine. They noted 15 bhp. They deduce around 8 for their 200 cell sport cats. Labor is $70.00/hr @Fabspeed to install.
Not bad.

Rich

chris walrod

On my 1995 cat, the major diameter is 4.7"

geolab

Thank you Chris, I intend to buy 2 x 100 cpsi cartridges and replace the OEM ones.

LAT

Don't do the recell it doesn't work as well, you need the seperated exhaust thus the X pipes. I have the Cargraphic, they work great, no CEL's

geolab

Sorry But I have got an M64-22 engine, one O2 sensor, and don't want fancy glitter underneath. I will just replace inserts, and reweld, cost $220

LAT

Unnless your present system is plugged you will not get the benefit, just be spending money.
The Cargraphic are SS same color as the stock system, no Bling.

C4sport

I just installed the Fabspeed Cat's more to try to save weight than anything else. The following are my impressions.

1) Only saved 10 to 15 pounds on Gillet Cat. I know they just copied the weight savings they had previously posted for there cat by-pass of 45 pounds. If the stock cat wieghs ~ 40lbs (bathroom scale) and you replace a good portion of that weight is hard to do the math to get to 45 lbs weight savings.
2) Perfomance, to my surpirse I actually can tell a difference more than the fabspeed maxflow mufflers with stock Cats alone. Or did it open things up enough to take advantage of the higher flow mufflers?
3) No instructions although fairly straight forward about four hours if you take it slow.
4) Do to the non crossover design one of the pipes protrudes below the re bumper 1 to 1.5 inches to snake aroungd the upper pipe, could be an issue with bottoming if your running low, although the larger fabspeed tips taht came with the maxflow mufflers may still hit first.
5) Right side after cat O2 sensor is in less than ideal location. Seeem like the tried to avoid a small removeable heat shield that I removed anyway to avoid the O2 wires from chafing against it.
6) Sound is just slightly louder than the fabspeed maxflow mufflers with stock cat and tad bit more metallic. The resonence at 2,500 to 3,000 rpm is less anowing. Quite a bit loader after 5,500 rpm but thats OK. No farting sound and absolute minimum closed throttle back fire.
6) Did not even try to really **** the neighbers off by trying the by-pass pipes (already the loudest car in the neighber hood) but test fitted them and seem to line up well will the exhaust cut outs.

LAT

I believe Cargraphic claims 8-9 HP for this mod.

RDS928S

C4 good review.
Do you feel they were worth the $1295?
Can you post a pic of the pipe hanging below the rear valance?

Thanks Rich

LAT

I paid much more for the used set of CG I put on mine. If you are in the market that is a great price.