I just got a new Spoon N1 axle back in from ICB, I plan on running this with my OEM JDM B pipe. I removed the first bottleneck on the b pipe and opened it up to a 60mm flange to match my T1R testpipe. My dilemma I'm having now is whether or not do anything about the last bottleneck on the b pipe, right after the small resonator the stock pipe along with Spoon and T1R neck down to 50mm or 2". I have no problem cutting into my JDM b pipe to remove the stock flange and open it up with a 2.5" donut style. But I can't bare the thought of cutting up my new N1,which is really a work of art.

Does the stock 2" muffler to B pipe bottleneck really rob that much power from a under 200whp B18? I've read countless threads talking about the first bottleneck, which everyone agrees you should remove. I can't find anyone talking about removing the second on the Spoon, Stock or T1R B pipes.

 

To me you don't buy spoon parts cause you want to win races.....you buy them for the name/bling. For that reason, I would leave it alone. If you really wanted to go fast, you could build a custom race exhaust for 1/4 the price.