Thread: Anybody using eBay catback systems?

what all ya got?

No I ran 2.5 SSAC to a 3" NA. It was the JDM DE before I re-turbo-ed it. Pretty loud even with a cat a big resonator and a big muffler. All magnaflow bits. Good power and very good tq surprisingly.

ya but arent the VE's quieter then the de's? well i guess till the cams kick over anyway.. still, worth loudness when runnin n1's or whatever

I think they're quieter when on the low lobes, louder when the high lobes engage.

Yeah the VE are quieter on the low lobe but I don't think a 3" is worth the noise for a daily driver.
I have made 3 exhausts for B13 with my fabricator in the last 2 years. It costs me ~$300 usually all included with good components paying him ~$50 and some burgers or whatever.
That said I'd definitely go with a pre-bent tubing kit in the future.
FWIW
2.50" OD, 3.75" Radius, 16 Gauge, Aluminized Super BK Columbia River Mandrel Bending

^Wow, that's cheap. You can't get ONE pipe for that cheap.

Haven't read the full thread but here is my take on the eBay exhausts...

Oh and with my MEgan ex also supposed 2.5" mandrel necked down at every turn. On some almost to 2". Fitment was a total bear like Vadim says.

I think I had the N1 exhaust, and the turns to go around the gas tank where fine, but going over the axle, it went down to 2" or below right below hitting the muffler. That was very annoying!

So, they're junk. I've already decided that I'll just go OEM.