JBA Longtubes to a 3" American Thunder catback, which midpipes

[Destructo09]

Hey guys, I did a quick search but couldn't really find what I was looking for.

I'm wanting to do the JBA Longtube 1 7/8" headers with highflow cats.

I have a 3" American thunder catback and believe I would need a 3" to 3" midpipe but JBA's say it's only for their own catback and won't fit others.

Currently the flowmaster obviously connects up to the 2.5" cats but i'm not sure if it would be a straight 3" connection or if I need the 3" to 2.5" cats.

[Apex Motorsports]

Originally Posted by Destructo09

Hey guys, I did a quick search but couldn't really find what I was looking for.

I'm wanting to do the JBA Longtube 1 7/8" headers with highflow cats.

I have a 3" American thunder catback and believe I would need a 3" to 3" midpipe but JBA's say it's only for their own catback and won't fit others.

Currently the flowmaster obviously connects up to the 2.5" cats but i'm not sure if it would be a straight 3" connection or if I need the 3" to 2.5" cats.

You need part number 6813SDC is you want 3 inch - 3 inch with cats. If you have any questions feel free to give us a call.

[Destructo09]

Originally Posted by Apex Chase

You need part number 6813SDC is you want 3 inch - 3 inch with cats. If you have any questions feel free to give us a call.

Thanks Chase, looks like the flowmaster system necks down to 2.5" at the front though according to their diagram:
http://www.flowmastermufflers.com/?p...ust%20Kits&kw=

So looks like I might need to go with the 2.5" if I want it to just bolt right up. Otherwise i'm guessing i'd need to cut off the neck down to fit into a 3" cat.

[dab86]

U should consider the JBA 3 inch competition exhaust. I have it with their headers and it sounds amazing! Good price too!

[Destructo09]

Originally Posted by dab86

U should consider the JBA 3 inch competition exhaust. I have it with their headers and it sounds amazing! Good price too!

Thanks for the suggestion, i'm not really in the market to replace the catback though. I'm not really worried if it's necked down to 2.5" between the cats and cat back since it's not really going to hurt anything. If I still had the stock exhaust I might consider it though.