3" dp connecting after testpipe

Green7mgte · 03-14-2010, 03:34 AM

k gonna ask before I leap.
im in the middle of purchasing a 3" elbow and 3"dp
now the question is. when I eliminate my cat with a test pipe, am i able to connect my new 3" pre cat to cat back?
hmm did i word that right?
cause 3"cat backs are freaking expensive. i also replaced from resonator back acouple years ago and dont feel like just chucking a perfectly good exhaust

Bill UK · 03-14-2010, 11:47 AM

Shouldn’t be a problem, they normally bolt straight onto the second cat. In the UK most supra owners also remove the second cat and fit a test pipe (3 inch x 11 1/2 inch plain pipe) vehicles pre 1992 are exempt from some exhaust emission tests in the UK. Before I fitted my test pipe (which replaces the second cat) I made a detailed drawing, which may help to check your fixing hole dimensions on your new down pipe. A selection of pic`s below that may help, including the Toyota stock exhaust system for the 7M-GTE.

Green7mgte · 03-14-2010, 03:20 PM

cheers bill.

03-14-2010, 03:34 AM	#1
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	3" dp connecting after testpipe k gonna ask before I leap. im in the middle of purchasing a 3" elbow and 3"dp now the question is. when I eliminate my cat with a test pipe, am i able to connect my new 3" pre cat to cat back? hmm did i word that right? cause 3"cat backs are freaking expensive. i also replaced from resonator back acouple years ago and dont feel like just chucking a perfectly good exhaust __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

03-14-2010, 11:47 AM	#2
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Shouldn’t be a problem, they normally bolt straight onto the second cat. In the UK most supra owners also remove the second cat and fit a test pipe (3 inch x 11 1/2 inch plain pipe) vehicles pre 1992 are exempt from some exhaust emission tests in the UK. Before I fitted my test pipe (which replaces the second cat) I made a detailed drawing, which may help to check your fixing hole dimensions on your new down pipe. A selection of pic`s below that may help, including the Toyota stock exhaust system for the 7M-GTE. Last edited by Bill UK; 03-14-2010 at 11:50 AM.

03-14-2010, 03:20 PM	#3
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	cheers bill. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

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