Previous Thread
Next Thread
New Reply
Print Thread
Straight pipe? #4264 Feb 19, 10:41am Feb 19, 10:41am

**DONOTDELETE** OP
Unregistered
Anonymous OP

Unregistered


Straight pipe?
I have a 01' gt auto, with an Injen long ram CAI and a "custom" exhaust, just took off the stock muffler and made a pipe leading to an aftermarket muffler, and i was wondering if its a good idea or a bad idea to cut out my cat and resonator and just have a pipe going from the engine striaght to the muffler

Re: Straight pipe? #4265 Feb 19, 11:11am Feb 19, 11:11am
Joined: Dec 2002
Posts: 1,660
Houston, TX
2001 Spec Blue Toyota Celica Grand-Touring-Dan
ECelica Staff
2001 Toyota Celica
Grand-Touring-Dan
2001 Spec Blue Toyota Celica
ECelica Staff
2001 Toyota Celica

Joined: Dec 2002
Posts: 1,660
Houston, TX
You won't pass emissions, and your CEL will come on if you remove your cat. The resonator is safe to remove, its just louder. Some people say it is too loud and they put it back on. I am going to remove my resonator as soon as I get a high flow cat.

Re: Straight pipe? [Re: Grand-Touring-Dan] #4266 Feb 19, 11:47am Feb 19, 11:47am

**DONOTDELETE** OP
Unregistered
Anonymous OP

Unregistered


how much of a hp gain would i get from takin off the resonator and puttin on a high flow cat?

Re: Straight pipe? #4267 Feb 20, 12:35am Feb 20, 12:35am
Joined: Jul 2002
Posts: 182
SGV*S.Ca
JDMCelicaGTS
Member
1985 Toyota Corolla GT
JDMCelicaGTS

Member
1985 Toyota Corolla GT

Joined: Jul 2002
Posts: 182
SGV*S.Ca
why dont you just get a TRD/kazuma exhaust? if you want loud and high flow,thats the way to go. No cat, no resonator.. loud as hell. and if your wondering if the CEL will go on because of no cat, it wont because the kazuma has a place where you put the O2 sensor.


2000 GT-S - SOLD, 12/2003
1986 AE86 GT-S - STOLEN, unrecovered, 2/2004
1985 AE86 GT-S - built 4AGTE, SOLD 10/2009
2004 Camry LE, SOLD, 5/2007-10/2007
1994 GS300, 2JZGTE, HKS T04Z, 10/07-Current
Re: Straight pipe? [Re: JDMCelicaGTS] #4268 Feb 23, 9:02am Feb 23, 9:02am
Joined: Feb 2003
Posts: 296
maryland
celicaguy
Member
celicaguy

Member

Joined: Feb 2003
Posts: 296
maryland
I am putting a Kazumi exhaust on my 02 gt next week...you can actually order it through the toyota dealer.But you can get it cheaper through wctoyota.it wont pass inspection simply because its a race exhaust.you can go to wctoyota and download a clip of what it sounds like..loud as hell and awesome sound

Re: Straight pipe? [Re: celicaguy] #4269 Feb 23, 10:20am Feb 23, 10:20am
Joined: Sep 2002
Posts: 209
san antonio, texas
eNinja
Member
2002 Toyota Celica
eNinja

Member
2002 Toyota Celica

Joined: Sep 2002
Posts: 209
san antonio, texas
DONT DO IT!!! shocked trust me. i have TRD exhaust and i ran a straight pipe and ive regretted it ever since. it sounded like rice. cmon this is a 1.8 liter here. i put it all back but the muffler shop messed up my o2 sensors in the process. if you do anything, leave the cat on, and take out the resonator.

Re: Straight pipe? [Re: eNinja] #4270 Feb 23, 3:35pm Feb 23, 3:35pm
Joined: Feb 2003
Posts: 296
maryland
celicaguy
Member
celicaguy

Member

Joined: Feb 2003
Posts: 296
maryland
The parts guy at my dealership assured me that it was a cat-back system.Is he full of crap or what here?!He said it wont hurt my warranties in any way.

Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
spoiled1102gts
spoiled1102gts
2000 Toyota Celica
Baton Rouge, La

Posts: 54
Joined: August 2003
Show All Member Profiles 
Recent Topics
Need help with my Fuel system, exhaust, or ??
by JRob1010. 09/22/2017 4:05 PM
First Toyota, Celica gt-s
by MiataMan. 09/22/2017 6:58 AM
FS: 18 in rims Rays Wolf 77
by WAYNESKI777. 09/20/2017 10:02 AM
Need help wiring a splice in tail light converter.
by seefeldt321. 09/19/2017 3:26 PM
System 10 Speakers not working
by willlcurry. 09/18/2017 3:35 PM
how do u bleed clutch line
by scorpionafw. 09/12/2017 3:20 PM
CELICA GEN 7 WELCOME DOOR LIGHTS
by Jinxy1965. 09/10/2017 1:36 PM
Need advice with buying Celica GT 2005 (t23)
by DarkSorrow. 09/05/2017 10:51 AM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20170920)