The big problem with the Circuit Sports combo pipe is that it doesn't have a flex section. I love the fact that it gives better ground clearance, but no flex section = more stress on your turbo->manifold studs (I broke 2 sets before I learned why flex sections are important).
Also, ebay link posting is prohibited, just post up search words that will help the OP find what you're linking to.
I have almost everything Megan makes for the S13 (worked at a Megan sponsored shop, got it free), and I have to say, it's not bad. I dont use the coilovers, but on all the engine/chassis stuff, it's well made and they've always given me great support whenever I had a problem.
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