Purchased a new T1R (63mm) testpipe from a member yesterday, just finished installing it this morning, and decided write up a DIY just in case anyone is interested.



Disclaimer: Do it at your own risk. I'm not responsible if you ####ed it up. This guide could be applied to most/all testpipe.

Tools needed:
1. Jack & jackstands (4)
2. 10mm, 12mm, 14mm wrench, & 22mm wrench
3. Pliers
4. CEL Eliminator Adaptor (can be found here or here).

Step 1. The installation is simple and straight forward. Remove the 3 bolts (14mm) connecting the stock cat to the exhaust, and the 2 spring bolts (12mm) connecting the to the header.

Step 2. Personally, I removed the O2 sensor (on the other side, near the tranny - just follow the wires) to make it easier on myself. Use the pliers if needed. Here's a comparison pic between the stock cat vs. the T1R. The weight of the T1R is also lighter than the stock cat; don't know exactly how much, but I'm guessing ~3-4 lbs.





Step 3. Use the 10mm wrench to remove the stock heatshield, and the 22mm for the O2 sensor (be careful with the wires). Install the CEL adapter and the O2 sensor back on to your testpipe.



Step 4. Put back the testpipe. With the T1R, the O2 sensor is almost horizontal, which is a plus. Not to mention that it looks like a stock cat if anyone cares to look under my car.





Review: I love it! Don't know exactly how much hp I gain, but the throttle feels "lighter" and more responsive, IMO. T1R testpipe + Amuse R1 Titan = Highly recommended! Comments/criticisms are welcome.

 

hmmmmmm

 

maybe i can just get some tabs welded on my berk pipe for the heat shield. Sounds cheaper and easier then getting another TP just to fool the emissions guys, lol

 

yeah, i was thinking about that as well if i didn't get the t1r.

 

now when it comes to smog... will the car pass with a TP?

 

lol i like the cat housing over the TP . in IL we arent that strict. my guy couldnt even find my OBDII port so i had to plug it in, then he couldnt start my car so i had to do that for him too

 

It will if it's just a visual inspection, it won't if they take a smog reading. Depends on how they do it in your area.

 

Any mechanic would be able to tell you do not have a cat. just by the smell of the exhaust. I can easily tell when I am following a vehicle without a cat. from a long way off.

 

i have the t1r 70mm and i did the same thing / the heat sheild as you did. My 70mm did not have tabs however, it was large enough so that i could just tighten the heatshield around it and it was held very firmly inplace. Maybe some of you could do the same thing w/ your testpipes and dont need tabs either.

 

Good one.