I returned my 135 a month a ago and I'm selling my Gintani N54 TBE. I purchased the TBE from Gintani in April 2010. It's a completely custom system fabricated by their former in-house welder Josh. The welds on this system are flawless.
It's one of a kind, no other turboback like it on the market. It's a race system, meaning no cats or mufflers, Gintani instead opted to go with two large resonators and resonated tips. The sound is intoxicating. This turboback is not for the faint of heart, meaning if you're looking for something quiet this is not the exhaust for you, but if you're looking for a turboback that will make you stand out from the crowd this is the one for you.
The turboback is in great condition. Minor wear and tear over two years, i.e. scratches from driveways etc., but no leaks or cracks. Unfortunately I never got a chance to dyno the car, but acceleration and responsiveness greatly improved.
I'm asking for $1000 for the full turboback and $700 for just the catback, if you don't want the downpipes. The catback will connect to stock downpipes or any aftermarket downpipes that taper to 2.5 inches.
I upload pics soon. I've attached a video of the TBE taken by Alex at Alpine.