NEW High Flow 2-1/2" Cat Back system 87 to 95
01-13-2012, 10:29 AM
#61
Rennlist Member
I'm not following...the S4 system works fine on S2 ans S3 (speaking of market segment) up until the bumper cover, just need to add a mid mounting point and an 86.5 final muffler or RMB. But downpipe, cats/bypass and mids are all basically compatible.
True though, that the cost to buy the whole thing and then rework that final segment is not a strong inducement.
Overall, custom shops have proliferated and equipment has gotten better, so owners having shops do their own one-offs probably is a good way to go.
True though, that the cost to buy the whole thing and then rework that final segment is not a strong inducement.
Overall, custom shops have proliferated and equipment has gotten better, so owners having shops do their own one-offs probably is a good way to go.
I was considering doing a custom 3" single but I am not sure how that will work performance wise having an X pipe.
01-13-2012, 02:36 PM
#62
Mike Frye, I have found no one willing to throw down on an S3 system. Dave Lomas/ Garrity don't see a real return on the current system and the S3 crowd just isn't there. I think we are left with your local shop fabbing something. I've been waiting and calling but by spring I think I'll just go with local. Brian
01-13-2012, 03:15 PM
#63
Race Car
I thought the 86.5 and up have different floor pans and battery box to accommodate the exhaust on the passenger side? My exhaust is dual but runs together on the driver side instead of splitting like the newer ones do.
I was considering doing a custom 3" single but I am not sure how that will work performance wise having an X pipe.
I was considering doing a custom 3" single but I am not sure how that will work performance wise having an X pipe.
I'm running 86.5 on my 83 Euro, no floorpan/clearance issues....been so long since I've looked though, not sure whether there is adifference left and right. Substantive difference, I mean, I realize the original routing is on driver's side...
I've read a number of posts that indicate great results from single 3"- good power and also solid torque.
I think Motorsports posted results at one point.
01-13-2012, 07:40 PM
#64
Craic Head
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Mike Frye, I have found no one willing to throw down on an S3 system. Dave Lomas/ Garrity don't see a real return on the current system and the S3 crowd just isn't there. I think we are left with your local shop fabbing something. I've been waiting and calling but by spring I think I'll just go with local. Brian
I'm not following...the S4 system works fine on S2 ans S3 (speaking of market segment) up until the bumper cover, just need to add a mid mounting point and an 86.5 final muffler or RMB. But downpipe, cats/bypass and mids are all basically compatible.
True though, that the cost to buy the whole thing and then rework that final segment is not a strong inducement.
Overall, custom shops have proliferated and equipment has gotten better, so owners having shops do their own one-offs probably is a good way to go.
True though, that the cost to buy the whole thing and then rework that final segment is not a strong inducement.
Overall, custom shops have proliferated and equipment has gotten better, so owners having shops do their own one-offs probably is a good way to go.
I thought the 86.5 and up have different floor pans and battery box to accommodate the exhaust on the passenger side? My exhaust is dual but runs together on the driver side instead of splitting like the newer ones do.
I was considering doing a custom 3" single but I am not sure how that will work performance wise having an X pipe.
I was considering doing a custom 3" single but I am not sure how that will work performance wise having an X pipe.
Ted, you're right. The problem with the '85 and early '86 is the battery box and the lack of exhaust hangers (which can be added of course).
JHowell37 fabbed up a system of his own by 'modifying' the battery box. I think he said he used the 5 lb sledge.
I guess there just isn't enough of a market for the S3 cat-back high flow setup since it was originally a 2-into-1-into-2 system and it would require something more than just bolting on a new set of pipes.
Can't blame a guy for asking though, right?
01-13-2012, 08:28 PM
#65
Race Car
Carl's V1 system.
Crush bends sure are weaksauce by comparison.
Installed with 86.5 muffler. No battery box issue.
It's still remarkable that a angled S2/S3 final muffler solution paired to the existing design for mid pipes is too big a mountain to climb.
Crush bends sure are weaksauce by comparison.
Installed with 86.5 muffler. No battery box issue.
It's still remarkable that a angled S2/S3 final muffler solution paired to the existing design for mid pipes is too big a mountain to climb.
01-13-2012, 11:55 PM
#66
Drifting
A few months ago I swapped out my cross member for one from a S4/GT so I now have the proper mounts. I also got another set of GT resonators. My first set was actually damaged so I off loaded them onto Landseer. I need a few pieces of hardware and I can put it back on. I just haven't been feeling motivated lately.
09-26-2012, 08:33 PM
#67
Nordschleife Master
Looks like I found the thread I am looking for...
I am ready to move on a high flow cat set up and an X-pipe...
Is that currently available anywhere and it looks like Roger had talked about a total cost around $750 (cats, X and install kit)... Is that still the case? Looking to put this on my '95 ASAP along with the Constantine RMB... I am hoping it will be the perfect sound and power combination!
I am ready to move on a high flow cat set up and an X-pipe...
Is that currently available anywhere and it looks like Roger had talked about a total cost around $750 (cats, X and install kit)... Is that still the case? Looking to put this on my '95 ASAP along with the Constantine RMB... I am hoping it will be the perfect sound and power combination!
09-26-2012, 08:49 PM
#68
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Hi James,
Happy to assist - aluminized X pipe is $485 and SS is $675.
A pair of high flow cats is $360.
Plus a fitting kit and shipping - do not forget your 5% OC discount.
High flow cat back system also available as well as per the thread. IIRC the price of the system went up about $100.
Best,
Roger
Happy to assist - aluminized X pipe is $485 and SS is $675.
A pair of high flow cats is $360.
Plus a fitting kit and shipping - do not forget your 5% OC discount.
High flow cat back system also available as well as per the thread. IIRC the price of the system went up about $100.
Best,
Roger
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
09-27-2012, 11:17 AM
#70
Installed this stainless set up a few weeks back on a customers car, man I want one of these for my car. It's only money.
09-27-2012, 12:30 PM
#71
Instructor
I have Roger's 3 inch Aluminized Y-Pipe and SS Cat on my 83 16v. Made a BIG diff on performance. Same company that is doing this. Looks good, sounds good.
Roger - any possibly they can make final tube and muffler portion for what I have? Just need the part from the end of the Cat back. It would have to have a slight reduction from 3 in Cat flange to the 2.5 pipe going to the muffler. I know the Borla is supposed to fit, but not only is it expensive but I do not like the way their muffler sits under the back end on some that I have seen. Does not look very integrated.
Roger - any possibly they can make final tube and muffler portion for what I have? Just need the part from the end of the Cat back. It would have to have a slight reduction from 3 in Cat flange to the 2.5 pipe going to the muffler. I know the Borla is supposed to fit, but not only is it expensive but I do not like the way their muffler sits under the back end on some that I have seen. Does not look very integrated.
09-27-2012, 12:50 PM
#72
Drifting
We actually looked into doing a 3" single cat back for early 16 valve cars but it flowed so well that anything less than a 300hp Euro lost a significant amount of torque. It did make the euro cars sing though!
Also, our 16 valve development hasn't been exactly profitable. We easily sell 40 X-pipes for each "Y" pipe. The dual cat back system has had pretty good sales, 5 this month so far but I have had less than 10 total requests for a single cat back for 16v cars in 8 years. I sold our last prototype to a well known Pinata LeMons car.
Hey Rog, what's a Supersprint Dual system?
Also, our 16 valve development hasn't been exactly profitable. We easily sell 40 X-pipes for each "Y" pipe. The dual cat back system has had pretty good sales, 5 this month so far but I have had less than 10 total requests for a single cat back for 16v cars in 8 years. I sold our last prototype to a well known Pinata LeMons car.
Hey Rog, what's a Supersprint Dual system?
09-27-2012, 12:52 PM
#73
09-27-2012, 01:34 PM
#74
Instructor
Ketchmi - understandable....then I am glad I could get what I have now! It is very good as it is using 85/86 manifolds on my 83, then the Y and SS cat, then stock rsonator/muffler section. Will keep exploring the alternatives for the last part and keep it at 2.5 inch so it does not flow too freely. Right now it definitely feels better than stock, of course the mainfolds help as much most likely!
09-27-2012, 06:06 PM
#75
Three Wheelin'
Originally Posted by Ketchmi:
Hey Rog, what's a Supersprint Dual system?
Originally posted by SeanR:
I want to know this also. Never heard of it and you'd think I would if something was in development.
It's actually not "IN" development. It's a rear muffler system with exhaust pipes that come out BOTH sides of the 928, not just the driver's side. The system is only the rear muffler, the crossover piece and the two tailpipe extentions that of course, requires modifying the rear bumper cover . It's made in Europe and quite cool, actually. I saw it and inquired about it's availlability a while back to ROG. I just figured he had forgotten about it because of his.......you know, wine issues.
Hey Rog, what's a Supersprint Dual system?
Originally posted by SeanR:
I want to know this also. Never heard of it and you'd think I would if something was in development.
It's actually not "IN" development. It's a rear muffler system with exhaust pipes that come out BOTH sides of the 928, not just the driver's side. The system is only the rear muffler, the crossover piece and the two tailpipe extentions that of course, requires modifying the rear bumper cover . It's made in Europe and quite cool, actually. I saw it and inquired about it's availlability a while back to ROG. I just figured he had forgotten about it because of his.......you know, wine issues.