My Cali Legal 3" Exhaust
Ok, so after viewing XxToKeSxX thread on how to build an inexpensive 3" exhaust, I decided to build my own but WITH the CAT. Mine is Cali "legal" just because the cat is left in. Im not sure if it'll pass a decibel noise test so do this at YOUR OWN RISK!!!
I spent roughly $100 on materials. So for all you cheap Nissan owners, this is definately a thread for you.
Ok for the piping:
I got very lucky because I fould a stock diesel truck exhaust on craigslist that was 3" in diameter in San Diego for only $10. It did Not have a 90* angle, however it did have enough bends so you could make one if you wished out of multiple bends weldes together.
The next thing I did was to buy a resonator from magna flow.
Its measurement are 3" in/out 5" round (leave the heat shields on if you wish) and its about 21" long. It was a wooping $85 or so from summit. This resonator is shorter and not as big as the one XxToKeSxX used on his project, I believe his was 6" round and like 30" in length. I had the exhaust shop weld it in almost directly after the cat w a flange that was on the 3" diesel truck exhaust.
I had the exhaust shop cut the diesel pipes in a few places to where it would work.I'll post the pictures up,they pretty much speak for themselves.
Welding the piping to the back of the resonator.
Welded front piece w angle to pipe towards side of car.
Another view.
View from the side of the car w Coke can for refrence. Keep in mind that my car sits way too low. This is how I baught it and it defintely needs to go up, can you see it?
And this is another view from the back facing forward; Btw I used the stock hanger w the exception of adding one that is welded at the end of the pipe.
Heres a better side view:
And a close up:
And here is a crappy a$$ cell phone video so you can judge for yourself the sound. Enjoy!
I spent roughly $100 on materials. So for all you cheap Nissan owners, this is definately a thread for you.
Ok for the piping:
I got very lucky because I fould a stock diesel truck exhaust on craigslist that was 3" in diameter in San Diego for only $10. It did Not have a 90* angle, however it did have enough bends so you could make one if you wished out of multiple bends weldes together.
The next thing I did was to buy a resonator from magna flow.
Its measurement are 3" in/out 5" round (leave the heat shields on if you wish) and its about 21" long. It was a wooping $85 or so from summit. This resonator is shorter and not as big as the one XxToKeSxX used on his project, I believe his was 6" round and like 30" in length. I had the exhaust shop weld it in almost directly after the cat w a flange that was on the 3" diesel truck exhaust.
I had the exhaust shop cut the diesel pipes in a few places to where it would work.I'll post the pictures up,they pretty much speak for themselves.
Welding the piping to the back of the resonator.
Welded front piece w angle to pipe towards side of car.
Another view.
View from the side of the car w Coke can for refrence. Keep in mind that my car sits way too low. This is how I baught it and it defintely needs to go up, can you see it?
And this is another view from the back facing forward; Btw I used the stock hanger w the exception of adding one that is welded at the end of the pipe.
Heres a better side view:
And a close up:
And here is a crappy a$$ cell phone video so you can judge for yourself the sound. Enjoy!
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Originally Posted by Jeremiah
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