ISR Performance Non Resonated Mid Section for 350Z

The ISR Performance Non-Resonated Mid Section for the 350Z is the modular swap component that converts your existing ISR 350Z GT Single or EP Dual exhaust from resonated to non-resonated. Stainless TIG-welded construction, brushed finish, drops in where your factory ISR resonated mid section came out. Louder, more aggressive midrange without buying an entirely new catback.

What It Does

Standalone non-resonated mid section. Skipping the resonator means more volume and a more aggressive note, especially under throttle. The catch is more cruise drone, which is the trade-off you live with. If you've been running a resonated ISR 350Z catback and want to dial up the volume without changing the rear style, this is the swap.

Fitment

Mid section only. Not a complete exhaust system. Works exclusively with ISR Performance 350Z catbacks:

• IS-GT-350Z (350Z GT Single)
• IS-EPDual-350Z (350Z EP Dual)

Will not work with OEM exhaust or any other manufacturer's catback. Will not work with the titanium IS-EPTI-350Z system (which has its own dedicated mid pipe).

What's in the Box

• 1x non-resonated mid section
• 2x 2-bolt 3" exhaust gaskets
• 4x bolts
• 4x nuts

Product Details

Brand: ISR Performance

Part Number: IS-S2NRMD-350Z

Type: Modular mid section (axle-back swap)

Style: Non-resonated

Vehicle Fitment: Nissan 350Z (via ISR 350Z catback)

Compatible Catbacks: IS-GT-350Z (GT Single), IS-EPDual-350Z (EP Dual)

Material: Stainless steel, TIG welded

Finish: Brushed stainless

Piping: 3"

Replaces: Factory ISR 350Z resonated mid section

Sold: Individually (mid section only, with gaskets and hardware)

Legality: Off-road and competition use only