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ISR Performance Circuit Spec Miata Cat-Back Exhaust (NA 1.6)

$385.00 $329.95 (You save $55.05)
4 Star Rating


This Miata performance exhaust features an exceptional 3 piece design for superior results. Please note that the midsection and tail section are standard and there are no variations available. The exhaust features 2.5'' brushed stainless steel piping and flanges, and a polished stainless steel muffler with a 4'' tip.

Upgrading your exhaust system is a great way to boost your engine’s performance. Most stock exhaust systems are designed to minimize engine noise, usually at the expense of engine performance. However, with an upgraded circuit spec exhaust you can improve the flow of air through your engine, providing an extra boost of power. Not to mention, your vehicle will give off that prized rumbling sound that performance cars are known for.

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At Enjuku Racing, we carry the best performance parts available from trusted manufacturers. ISR (Formerly ISIS) Performance is a respected name that produces consistently excellent aftermarket parts, and their Miata performance exhaust is no exception. Feel free to contact us if you have any questions about this part, or if you’d like to discuss your modifications.

Countless customers have praised our speedy and efficient customer service, and we aim to maintain that reputation by getting you the parts you need in a timely fashion. We know you can’t wait to get that new exhaust system installed in your ride. Check out our Miata performance exhaust kit and order yours today!

** All ISR Performance Products are Designed for Off Road Use Only **


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  1. Good for cost

    Posted by Unknown on

    Just bolted the exhaust on tonight. bolted in just fine with absolutely no problem. great exhaust for the cost form a great company. sadly, the exhaust has a somewhat drone at highway speed. but other than that im quite please with what i have gotten. i would certainly recommend this to other miata owners.