PROSPEED Hi-Flow Catalytic Converters
Hi Fellow Primers,
I am proud to introduce the Prospeed Hi-flow Cats for the 91-94 NSX as well as the 95-99 NSX which we will start production on early next week.
The Prospeed Hi-flow Cats will be a direct bolt on replacement for your OEM cats or Test pipe. They is a great chance to upgrade your old 17 year old clogged cats and not only make more horsepower but lose weight from the OEM cats. The OEM cats are extremely expensive at a little over $2000+ for the pair so this is a great alternative over the OEM cats. The Prospeed Hi-Flow Cats will also pass 48 state emissions for all OBD-1 NSX's 300 cell versions will pass CA emissions. Testing for OBDII will be done shortly after completion of the 95-99 year cats.
Details:
- We offer 200 SS cell cores that flow 400+ CFM
- We offer 300 cell cores and 400 cells cores to help with passing emissions.
- Full high flow metal substrate cores
- Tubing are high grade 304 Stainless Steel
- All pipes are 2.25" to match properly to your aftermarket headers and exhaust
- Fully TIG welded and tested to fit
- Flanges are laser cut for proper fitment
- Comes complete with gaskets and Hi Grade bolts, nuts and washers
- Light weight design
- Advantages of a test pipe without the smell, raspy sound and the black bumpers
- Low cost, OEM cats retail for over $2000+
- Bolt on, no welding involved
- Completely Made In The USA
- Go Green! Get rid of your test pipe and save the planet!
- OBD II EPA Compliant for 48 states. (Also EURO III Compliant)
- Confirmed to pass smog in Ca for both OBD I and OBD II NSX's
Applications:
-91-94 NSX
-95-99 NSX
-00-05 NSX
Versions:
-2.0"
-2.25"
-custom flanges for 97+ headers on 91-96 NSX.
Availability:
-91-94
-95-99 (7/3/08) Currently in production.
-00-05 (TBA)
Price:
91-94 - $575
95-99 - $549
00-05 - $549
Disclaimer: FOR OFF ROAD USE ONLY
-GROUP BUY-
I will be offering a Group buy offer for the first 10 buyers. I am doing my best to keep cost down for everyone. I could have saved money having it MIG welded or to use low grade hardware but I want to use only high quality parts for our NSX's. You will be happy with the quality of our cats.
COMBO SPECIAL!
We will also be offering a combo special for the Prospeed ROM tune chip with the Prospeed Hi-Flow Cats.
PROSPEED ROM TUNE information can be found here http://www.nsxprime.com/forums/showthread.php?t=96360
Price: $349
PROSPEED Hi-Flow Cats
Price: $575
Please PM me for more details and ordering information. First come first serve.
More pics coming soon including installation and dyno graph!
<EMBED src=http://i17.photobucket.com/player.swf?file=http://vid17.photobucket.com/albums/b68/coldfizzle/PROSPEEDHi-FLOWCats.flv width=448 height=361 type=application/x-shockwave-flash wmode="transparent">
DYNO PROVEN!
We finally had time to get the test mule on the dyno. We were pleased with the final results after adding on the Prospeed Hi-Flow Cats. The higher flowing cats really showed itself down low with an increase in torque of up to 5 ft lbs of torque at a usable 4000 rpm. We made our most torque and HP ever at 267.5 HP and 205.12 ft lbs. of torque. The only change was the Prospeed Hi-flow Cats. No fuel or ignition timing was done to the car. I am personally happy with the upgrade. Increase HP, lighter weight then OEM cat (approx. 12-13 lbs savings) and a nice deep "growling" sound exhaust. We will be testing out the 95-99 soon. We believe the restriction is greater on the later model NSX's due to the diameter of the opening on the OEM cats. check out the results below...
DETAILS
Dyno: Dynapak dynometer (Thanks to Bisi from Bisimoto engineering for using the facility)
The car has about 65,XXX miles on it (1991 NSX, 5 speed)
Mods- Stock airbox with comptech filter, Taitec GTLW exhaust, Top Speed Headers, Prospeed Stage 3 Rom Chip and Prospeed Hi-Flow Cats.
NOTE: We compared our most recent hp from the last time we dynoed on the 28th of MAY to our dyno with the Prospeed Hi-Flow Cats on the 22nd of July. Both runs were done SAE corrected to eliminate variables. Also on may 28th temps. were 78 degrees F. vs 98 degrees F. on July 22nd.
PROSPEED HI-FLOW CATS
RESULTS
Blue dotted line indicates run with comptech filter, taitec GTLW exhaust, Top Speed Headers, and Prospeed Rom Stage 3.
Blue solid line indicates run with comptech filter, taitec GTLW exhaust, Top Speed Headers, Prospeed Rom Stage 3 and Prospeed Hi-Flow Cats.
-Peak 267.5 HP with 205.12ft lbs of torque
-As you can see we picked up around 2 hp to 5 hp Throughout the power band. 5 hp at 7280rpm.
-The NSX saw excellent gains in torque gain from 2ft lbs of torque to 5ft lbs of torque.
-Torque can be felt from around 2000 to 4500 rpm.
-Noticeable increase in throttle response.
-Slightly louder then the stock OEM cats but doesn't drone or have that raspy sound normally associated with test pipes.
-Part throttle driving and cruising still remains fairly quiet. Increase in decibels when you floor it.
-12-13 lbs weight savings over OEM cat.
-Greener then a test pipe and no stinky smell or black bumpers!
-Higher flow cat will be great for forced induction applications. Perfect for the Comptech supercharger owners.
Hi Fellow Primers,
I am proud to introduce the Prospeed Hi-flow Cats for the 91-94 NSX as well as the 95-99 NSX which we will start production on early next week.
The Prospeed Hi-flow Cats will be a direct bolt on replacement for your OEM cats or Test pipe. They is a great chance to upgrade your old 17 year old clogged cats and not only make more horsepower but lose weight from the OEM cats. The OEM cats are extremely expensive at a little over $2000+ for the pair so this is a great alternative over the OEM cats. The Prospeed Hi-Flow Cats will also pass 48 state emissions for all OBD-1 NSX's 300 cell versions will pass CA emissions. Testing for OBDII will be done shortly after completion of the 95-99 year cats.
Details:
- We offer 200 SS cell cores that flow 400+ CFM
- We offer 300 cell cores and 400 cells cores to help with passing emissions.
- Full high flow metal substrate cores
- Tubing are high grade 304 Stainless Steel
- All pipes are 2.25" to match properly to your aftermarket headers and exhaust
- Fully TIG welded and tested to fit
- Flanges are laser cut for proper fitment
- Comes complete with gaskets and Hi Grade bolts, nuts and washers
- Light weight design
- Advantages of a test pipe without the smell, raspy sound and the black bumpers
- Low cost, OEM cats retail for over $2000+
- Bolt on, no welding involved
- Completely Made In The USA
- Go Green! Get rid of your test pipe and save the planet!
- OBD II EPA Compliant for 48 states. (Also EURO III Compliant)
- Confirmed to pass smog in Ca for both OBD I and OBD II NSX's
Applications:
-91-94 NSX
-95-99 NSX
-00-05 NSX
Versions:
-2.0"
-2.25"
-custom flanges for 97+ headers on 91-96 NSX.
Availability:
-91-94
-95-99 (7/3/08) Currently in production.
-00-05 (TBA)
Price:
91-94 - $575
95-99 - $549
00-05 - $549
Disclaimer: FOR OFF ROAD USE ONLY
-GROUP BUY-
I will be offering a Group buy offer for the first 10 buyers. I am doing my best to keep cost down for everyone. I could have saved money having it MIG welded or to use low grade hardware but I want to use only high quality parts for our NSX's. You will be happy with the quality of our cats.
COMBO SPECIAL!
We will also be offering a combo special for the Prospeed ROM tune chip with the Prospeed Hi-Flow Cats.
PROSPEED ROM TUNE information can be found here http://www.nsxprime.com/forums/showthread.php?t=96360
Price: $349
PROSPEED Hi-Flow Cats
Price: $575
Please PM me for more details and ordering information. First come first serve.
More pics coming soon including installation and dyno graph!
<EMBED src=http://i17.photobucket.com/player.swf?file=http://vid17.photobucket.com/albums/b68/coldfizzle/PROSPEEDHi-FLOWCats.flv width=448 height=361 type=application/x-shockwave-flash wmode="transparent">
DYNO PROVEN!
We finally had time to get the test mule on the dyno. We were pleased with the final results after adding on the Prospeed Hi-Flow Cats. The higher flowing cats really showed itself down low with an increase in torque of up to 5 ft lbs of torque at a usable 4000 rpm. We made our most torque and HP ever at 267.5 HP and 205.12 ft lbs. of torque. The only change was the Prospeed Hi-flow Cats. No fuel or ignition timing was done to the car. I am personally happy with the upgrade. Increase HP, lighter weight then OEM cat (approx. 12-13 lbs savings) and a nice deep "growling" sound exhaust. We will be testing out the 95-99 soon. We believe the restriction is greater on the later model NSX's due to the diameter of the opening on the OEM cats. check out the results below...
DETAILS
Dyno: Dynapak dynometer (Thanks to Bisi from Bisimoto engineering for using the facility)
The car has about 65,XXX miles on it (1991 NSX, 5 speed)
Mods- Stock airbox with comptech filter, Taitec GTLW exhaust, Top Speed Headers, Prospeed Stage 3 Rom Chip and Prospeed Hi-Flow Cats.
NOTE: We compared our most recent hp from the last time we dynoed on the 28th of MAY to our dyno with the Prospeed Hi-Flow Cats on the 22nd of July. Both runs were done SAE corrected to eliminate variables. Also on may 28th temps. were 78 degrees F. vs 98 degrees F. on July 22nd.
PROSPEED HI-FLOW CATS
RESULTS
Blue dotted line indicates run with comptech filter, taitec GTLW exhaust, Top Speed Headers, and Prospeed Rom Stage 3.
Blue solid line indicates run with comptech filter, taitec GTLW exhaust, Top Speed Headers, Prospeed Rom Stage 3 and Prospeed Hi-Flow Cats.
-Peak 267.5 HP with 205.12ft lbs of torque
-As you can see we picked up around 2 hp to 5 hp Throughout the power band. 5 hp at 7280rpm.
-The NSX saw excellent gains in torque gain from 2ft lbs of torque to 5ft lbs of torque.
-Torque can be felt from around 2000 to 4500 rpm.
-Noticeable increase in throttle response.
-Slightly louder then the stock OEM cats but doesn't drone or have that raspy sound normally associated with test pipes.
-Part throttle driving and cruising still remains fairly quiet. Increase in decibels when you floor it.
-12-13 lbs weight savings over OEM cat.
-Greener then a test pipe and no stinky smell or black bumpers!
-Higher flow cat will be great for forced induction applications. Perfect for the Comptech supercharger owners.
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