Borla!! (on the 20B)
06-22-07, 12:09 PM
#27
Interesting. Dan Atkins had a 3" system with a supercharger in his rotary powered B2200. It was extremely loud and I think he got a fix-it ticket. He removed a 2 1/4" exhaust from one of his dad's REPUs and fitted it to the B2200. It got a lot quieter and more powerful. He didn't understand how that could be possible at first. We talked a bit about it and now I think he understands that superchargers still follow NA rules in the exhaust system. There's just more volume. Therefore if a 2.0" system is good for NA, go with a 2 1/4" for an SC.
Knowing that, I'm still going to try to get away with a 2.0" system on my REPU because I have all the components just sitting in the garage, and it will run NA for the next little while (at least a year). My bro's RX-4 wagon has a 2" system and an SC, and it seems to do ok. He drives it up to 8k from time to time.
Knowing that, I'm still going to try to get away with a 2.0" system on my REPU because I have all the components just sitting in the garage, and it will run NA for the next little while (at least a year). My bro's RX-4 wagon has a 2" system and an SC, and it seems to do ok. He drives it up to 8k from time to time.
06-23-07, 08:07 PM
#28
I took some careful measurements and it looks like a Borla Pro XS in the cat location is possible if it has an offset inlet and a centered outlet.
The middle muffler (right before the rearend) will have to be a Magnaflow because Borla doesn't make a round muffler with 2.5 inlet/outlet. Either 4" or better yet 5" if it fits. The 5" will muffler better, but it will hang down an inch lower than the 4".
Why get a middle muffler? Because I've fallen in love with the RB dual pipe system and its quietness and decent power. If I can get similar results from a 2.5" single system, then that will be great.
The final muffler can also be a Borla Pro XS with offset/centered. It'll fit very well within the heat shield with about an inch on each side to spare. I'll probably not get a tip because the end of the Borla is stainless steel and should be adequate. We'll see once it's in place.
The middle muffler (right before the rearend) will have to be a Magnaflow because Borla doesn't make a round muffler with 2.5 inlet/outlet. Either 4" or better yet 5" if it fits. The 5" will muffler better, but it will hang down an inch lower than the 4".
Why get a middle muffler? Because I've fallen in love with the RB dual pipe system and its quietness and decent power. If I can get similar results from a 2.5" single system, then that will be great.
The final muffler can also be a Borla Pro XS with offset/centered. It'll fit very well within the heat shield with about an inch on each side to spare. I'll probably not get a tip because the end of the Borla is stainless steel and should be adequate. We'll see once it's in place.
06-25-07, 12:41 PM
#29
I must clarify something I said earlier. Borla does indeed make a 5" round muffler with 2.5 inlet/outlet. It is the S Type 40842S. Too short and expensive for me though.
I think I've figured out a good system that's not too expensive and should flow well enough and not be too loud.
Cat location:
Borla Pro XS 40358 14" x 4" x 9 1/2" offset/centered, 2.5 inlet/outlet
Middle location:
Magnaflow 10426 4" round 18" length, 2.5 inlet/outlet
Rear location:
Magnaflow 12256 5x8 oval, 18" length, offset/centered, 2.5 inlet/outlet
I've debated between Borla and Magnaflow for the rear. On one hand, it's so far away from the engine that a Magnaflow should hold up for quite a while. Others have used them in the rear with no problems. However the way I'm feeling about it, it seems like Borla would be the better choice because they seem to muffle better and if the middle Magnaflow ever burns out, which is a possibility, the Borla would take up the slack and certainly never burn out. It's also immune to acids that build up in the stainless steel wool over time due to condensation; especially that far from the engine. Borla uses T-304 stainless. Magnaflow appearantly uses a lesser grade. I've actually seen lesser grades rust over time. Hmm...
Hey, the polished Magnaflow costs the same as the Borla. Only the satin version of the Magnaflow is cheaper. The difference is about $35 or $40.
Alright, I've made my decision. I'm going with two Borlas. Forget the Magnaflows, which can blow out after a while. Why spend $60 on a 4" round plus another $65 on a 5x8 oval, which might last for while, when a single Borla in the back would probably work just as well, never blow out, and only cost about a hundred per unit? I'd save $25 with the ability to add the 4" round in the future if necessary.
That's ONLY if necessary. To be honest I'm a bit concerned that some noise will leak through the round magnaflow and into the car, as thin as it is. That's what I don't want. I don't care how loud the back of the car is. I just don't want any noise coming up through the floor - that's the good thing about the RB system in that it's quiet through the floor, what with those thick pipes and real presilencers.
Ok, I'll just do two Borla Pro XS 40358 and call it good. Thoughts anyone?
I think I've figured out a good system that's not too expensive and should flow well enough and not be too loud.
Cat location:
Borla Pro XS 40358 14" x 4" x 9 1/2" offset/centered, 2.5 inlet/outlet
Middle location:
Magnaflow 10426 4" round 18" length, 2.5 inlet/outlet
Rear location:
Magnaflow 12256 5x8 oval, 18" length, offset/centered, 2.5 inlet/outlet
I've debated between Borla and Magnaflow for the rear. On one hand, it's so far away from the engine that a Magnaflow should hold up for quite a while. Others have used them in the rear with no problems. However the way I'm feeling about it, it seems like Borla would be the better choice because they seem to muffle better and if the middle Magnaflow ever burns out, which is a possibility, the Borla would take up the slack and certainly never burn out. It's also immune to acids that build up in the stainless steel wool over time due to condensation; especially that far from the engine. Borla uses T-304 stainless. Magnaflow appearantly uses a lesser grade. I've actually seen lesser grades rust over time. Hmm...
Hey, the polished Magnaflow costs the same as the Borla. Only the satin version of the Magnaflow is cheaper. The difference is about $35 or $40.
Alright, I've made my decision. I'm going with two Borlas. Forget the Magnaflows, which can blow out after a while. Why spend $60 on a 4" round plus another $65 on a 5x8 oval, which might last for while, when a single Borla in the back would probably work just as well, never blow out, and only cost about a hundred per unit? I'd save $25 with the ability to add the 4" round in the future if necessary.
That's ONLY if necessary. To be honest I'm a bit concerned that some noise will leak through the round magnaflow and into the car, as thin as it is. That's what I don't want. I don't care how loud the back of the car is. I just don't want any noise coming up through the floor - that's the good thing about the RB system in that it's quiet through the floor, what with those thick pipes and real presilencers.
Ok, I'll just do two Borla Pro XS 40358 and call it good. Thoughts anyone?
06-25-07, 05:54 PM
#30
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I just installed a borla pro xs in the rear section today. I put in the 19" 2.5" center in dual 2.5 out. At first i was worried that it would not fit-- but it did. I also put in a magnaflow 14" round muffler before the axel. I bought the borla for 101.89 with shipping from wickednicky.com
also, as a side note-- both the magnaflow and borla are stainless steel packed around the perforated core and then the rest is fiberglass--- i was under the impression that the whole thing was packed with stainless steel.
also, as a side note-- both the magnaflow and borla are stainless steel packed around the perforated core and then the rest is fiberglass--- i was under the impression that the whole thing was packed with stainless steel.
06-25-07, 07:43 PM
#31
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I just installed a borla pro xs in the rear section today. I put in the 19" 2.5" center in dual 2.5 out. At first i was worried that it would not fit-- but it did. I also put in a magnaflow 14" round muffler before the axel. I bought the borla for 101.89 with shipping from wickednicky.com
also, as a side note-- both the magnaflow and borla are stainless steel packed around the perforated core and then the rest is fiberglass--- i was under the impression that the whole thing was packed with stainless steel.
also, as a side note-- both the magnaflow and borla are stainless steel packed around the perforated core and then the rest is fiberglass--- i was under the impression that the whole thing was packed with stainless steel.
06-25-07, 09:14 PM
#33
A pair of these showed up today. Bought one for dj55b, the other will go on the REPU, eventually. $187.60 shipped. The other bidder I beat out on eBay was pissed when my bid went in with 2 seconds left, lol. Apparently these old fingers beat out his snipe program. 1st time I've ever had another bidder PM me about losing.
Model # is 40665, 2-1/2" I/O. Body is 19X9-1/2X4". They fit a Mustang from the listing. If I was keeping both of them, I would consider running true duals on a ported 13B 4-port. If it was 3" I/O, it would be going on the widebody. The Magnaflow round ain't cutting it as a pre-silencer.
When I get a chance to put the widebody in the shop again, I'll let everyone know if it will fit in place of a cat.
Model # is 40665, 2-1/2" I/O. Body is 19X9-1/2X4". They fit a Mustang from the listing. If I was keeping both of them, I would consider running true duals on a ported 13B 4-port. If it was 3" I/O, it would be going on the widebody. The Magnaflow round ain't cutting it as a pre-silencer.
When I get a chance to put the widebody in the shop again, I'll let everyone know if it will fit in place of a cat.
06-26-07, 12:05 PM
#34
whofarzed, how does it sound? Did you use thickwall pipe anywhere in the system? I considered that 19" model. Could you take a picture of the back of the car? I'd like to see how it looks with the two outlets under the bumper.
Borla and Magnaflow do not contain fiberglass. Borla has a ceramic wool of sorts, and the Magnaflow has 'acoustical' sound deadening material. Both have stainless wool to protect the outer material.
trochoid, that's great! It looks like Borla aren't polished, but that's ok. I see it has some funny slots at the edge of the inlet and outlet. Is that so they can be clamped down? I assume you're welding. Gonna just zip up the slots?
Do the Pro XS series have those slots? Anyone know?
That dork with the snipe program deserved to not get the mufflers. lol What a sore loser.
I'd like to know how the 19" versions fit in the cat location.
Borla and Magnaflow do not contain fiberglass. Borla has a ceramic wool of sorts, and the Magnaflow has 'acoustical' sound deadening material. Both have stainless wool to protect the outer material.
trochoid, that's great! It looks like Borla aren't polished, but that's ok. I see it has some funny slots at the edge of the inlet and outlet. Is that so they can be clamped down? I assume you're welding. Gonna just zip up the slots?
Do the Pro XS series have those slots? Anyone know?
That dork with the snipe program deserved to not get the mufflers. lol What a sore loser.
I'd like to know how the 19" versions fit in the cat location.
06-26-07, 12:29 PM
#35
I think these are nice as well and not as loud as one may think.
http://www.apexi-usa.com/product_exh...=259&pageNum=1
http://www.apexi-usa.com/product_exh...=177&pageNum=1
http://www.apexi-usa.com/product_exh...=259&pageNum=1
http://www.apexi-usa.com/product_exh...=177&pageNum=1
06-26-07, 01:03 PM
#37
The packaging is thick that's for sure, so the muffling should be significantly better than any Borla or Magnaflow that I've ever had, and since it's from Apex-i, I'm sure quality delivers. A buddy of mine has the 3" WS for his turbo Eclipse, which I'm going to get as well.
06-27-07, 11:14 AM
#38
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Well this is my third attempt at making a decent exhaust for my car--haha (should have just done the research right from the start)
Anyways, my first attempt-- (a couple years ago-- since i have not driven the car for 5 years) was a racing beat header into a ceramic glass pack right after the header into a flowmaster 40 or 50 series--- it sounded soo loud and crappy took it off right away.
Second try was the same set up except i switched the flowmaster with a dynomax turbo muffler and a dual resonated tip. It was much quieter but had a horrible metalic vibrating sound.
Right now I have a racing beat header into the ceramic glass pack (which may be burnt now who knows) into a 14' long 4" round magnaflow before the axel and than the 19' long center in dual out borla in the rear. I must say-- it sounds pretty good. Very deep and no metalic vibration sound--- however, it is still too loud for me-- it is actually louder then the dynomax (although sounds way better). Also i do have thick 2 1/4 piping all the way-- except now i have a slightly less thick pipe running over the axel as i forgot to mention it to the guys who put on my mufflers and custom made the pipe over the axel. Also, in the pamphlet that came with my borla it shows a diagram and has labeled steel wool by the perpherated pipes and fiberglass everywhere else-- soo i don't know. If I have time I will try to take a picture-- although I have no tips on it now--
Anyways, my first attempt-- (a couple years ago-- since i have not driven the car for 5 years) was a racing beat header into a ceramic glass pack right after the header into a flowmaster 40 or 50 series--- it sounded soo loud and crappy took it off right away.
Second try was the same set up except i switched the flowmaster with a dynomax turbo muffler and a dual resonated tip. It was much quieter but had a horrible metalic vibrating sound.
Right now I have a racing beat header into the ceramic glass pack (which may be burnt now who knows) into a 14' long 4" round magnaflow before the axel and than the 19' long center in dual out borla in the rear. I must say-- it sounds pretty good. Very deep and no metalic vibration sound--- however, it is still too loud for me-- it is actually louder then the dynomax (although sounds way better). Also i do have thick 2 1/4 piping all the way-- except now i have a slightly less thick pipe running over the axel as i forgot to mention it to the guys who put on my mufflers and custom made the pipe over the axel. Also, in the pamphlet that came with my borla it shows a diagram and has labeled steel wool by the perpherated pipes and fiberglass everywhere else-- soo i don't know. If I have time I will try to take a picture-- although I have no tips on it now--
