Cat delete gains

btwilson86 · 11-22-2010, 06:25 AM

I've driven one Supra (GE) with a hollowed out cat, and then the same car after a used cat was installed... Although there *may* have been more power with the hollowed out cat (nothing that we noticed), the car ran better with the cat in place. The power built up much smoother than without the cat, and it helped the car have more pull in the higher rpm's (with the hollowed cat, it would fall on it's face around 5500ish RPM).

So I say keep the cat.

11-22-2010, 06:25 AM	#5
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	I've driven one Supra (GE) with a hollowed out cat, and then the same car after a used cat was installed... Although there may have been more power with the hollowed out cat (nothing that we noticed), the car ran better with the cat in place. The power built up much smoother than without the cat, and it helped the car have more pull in the higher rpm's (with the hollowed cat, it would fall on it's face around 5500ish RPM). So I say keep the cat. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels