Completing my exhaust GST

[wmrcs]

I have an SRS catback on my GST right now, and I would like to complete it to a full exhaust. I just have a few questions.

I still have the T25, and stock O2 housing. I want a full 3" exhaust, so is there an exhaust that I can get that will still mate up with the stock O2 housing? I am going catless too, so do I need a testpipe to take the place or is there a company that sells turbo->catback "kits".

 

[ebailey95]

Almost any kit you buy will fit with the stock O2 housing. That's what they are designed for. As for down pipe choice, some designs totally replace the cat and are longer to compensate for the lost distance. Others are stock length to be used with the stock cat. In this case, you would need a 3inch test pipe to complete your setup. This is what I'm running because in Portland here, we have to pass DEQ and its easier to swap a cat in place of the test pipe with 4 bolts than a whole downpipe assembly and vice versa.

 

[TSicktalon]

You will not find an aftermarket downpipe that allows for a catalytic converter.

 

[wmrcs]

Almost any kit you buy will fit with the stock O2 housing. That's what they are designed for. As for down pipe choice, some designs totally replace the cat and are longer to compensate for the lost distance. Others are stock length to be used with the stock cat. In this case, you would need a 3inch test pipe to complete your setup. This is what I'm running because in Portland here, we have to pass DEQ and its easier to swap a cat in place of the test pipe with 4 bolts than a whole downpipe assembly and vice versa.

Okay cool! Yea, no emissions here in Newberg I'll look for one complete downpipe then to replace it all.

Kind of curious, I just noticed that there is an SRS downpipe. Has anyone paired this with the SRS catback? It's $150 obo on eBay, so I figure I could get it for $25-$50 less than that... might be worth it considering that it's decent piping.

 

[ebailey95]

You will not find an aftermarket downpipe that allows for a catalytic converter.

Then how do I have one on my car? Just asking. There are some out there. look around!

 

[TSicktalon]

It was custom made. Find one from a vendor and prove me wrong.

 

[synthetek]

It was custom made. Find one from a vendor and prove me wrong.

I have one too. There are several downpipes that aren't cat-delete.

A'PEXi N1 Downpipe (2G DSM AWD) 147-KM01 - Modern Automotive Performance

Tanabe Down Pipe DSM 2g 95-99 - Modern Automotive Performance

Eclipse Exhaust System Upgrades

 

[wmrcs]

Okay, well I AM NOT KEEPING MY CAT. Back on track here, anyone used the SRS downpipe with the SRS catback?