Midpipe with Borla vs. N Tech High Flow Cat
#1
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Midpipe with Borla vs. N Tech High Flow Cat
My friends shop tested the back pressure of my exhaust while looking for a boost problem I had with my car. (back pressure turned out not to be the cause of the problem) They found 7 lb of back pressure with the new N Tech high flow (ha ha) cat in the exhaust system. To high. Not good. So, off comes the N Tech and on goes a stainless midpipe with a Borla straight through muffler I had them put in it. At Jimlabs suggestion as I recall. Repeat the test, 3 lb back pressure! Much better! And the sound is now actually a bit quieter but deeper than with the N Tech. And yes, my slightly used N Tech cat is now for sale, cheap.
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#4
are there any vendors that sell a midpipe with the borla xr1 already welded in there rather than just a resonator? most of the muffler shops here in california don't want anything to do with anything that resembles a midpipe and i don't really have the facilities to try to weld one together myself
#6
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Originally posted by potatobbq
are there any vendors that sell a midpipe with the borla xr1 already welded in there rather than just a resonator? most of the muffler shops here in california don't want anything to do with anything that resembles a midpipe and i don't really have the facilities to try to weld one together myself
are there any vendors that sell a midpipe with the borla xr1 already welded in there rather than just a resonator? most of the muffler shops here in california don't want anything to do with anything that resembles a midpipe and i don't really have the facilities to try to weld one together myself
#7
Rotary Freak
...bill,
Were you running your air pump with the N-tech cat? What was your problem?
I have an n-tech but my airpump is broken and causing my idle to be bad.
john
Were you running your air pump with the N-tech cat? What was your problem?
I have an n-tech but my airpump is broken and causing my idle to be bad.
john
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#8
Originally posted by mjw
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
#9
Originally posted by mjw
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
#10
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Originally posted by mjw
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
VRSexhaust.com makes one with a Magnaflow muffler equivalent.
Matt
#12
Thanks a lot for the info guys, I'll most likely order one from them and I'll post a review when I get it installed. Haha, the fact that they return emails is definately a plus these days!
#13
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Nice thread, gives me an idea
Matt, did the DP have a O2 sensor bunge welded on it?
Back pressure tests on all the high flow Cat's would tell us which is highest free flowing one.
Back pressure tests on all the high flow Cat's would tell us which is highest free flowing one.
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