ISR Performance Single GT Exhaust for Nissan 350Z

The ISR Performance Single GT Exhaust for the 2003-2008 Nissan 350Z is the refined single-exit catback in our 350Z lineup. Full 3" mandrel-bent stainless construction with a 4.5" polished tip, brushed finish, and a deep aggressive tone that earns its place on a daily-driven Z. 350Z only. will not fit G35.

What It Does

Y-pipe back single-exit system. 3" piping for reduced back pressure and better flow, polished muffler with a 4.5" polished tip. TIG-welded stainless construction with a brushed finish on the piping and polished mufflers/tips. The single-pipe layout is the more refined of our 350Z exhaust options, particularly compared to the more aggressive EP Dual blast-pipe variants. Lighter than the factory exhaust, which adds a small but real performance bonus on top of the flow improvement. The Non-Resonated Mid Section (IS-S2NRMD-350Z) can be added separately if you want to dial up the volume without changing the rear.

Fitment

2003-2008 Nissan 350Z only (Z33 chassis). Will NOT fit the Infiniti G35. verify your model before ordering. Pair with the IS-Z33-Y Y-pipe (for 350Z/G35 RWD); do NOT use the IS-Z34-Y, which is for the 370Z/G37/Q60 3.7L. For a complete combo package, see IS-Y-GT-Z33 (Y-pipe + GT exhaust, 5% savings).

Alternative 350Z Exhausts

• IS-ST-Z33. ST Series (dual 2.5" piping, dual 4" tips, more aggressive)
• IS-EPDual-350Z. EP Dual blast-pipe (dual 3" tips, requires bumper tuck)
• IS-EPTI-350Z. Titanium EP Dual (~9 lbs total weight)

Product Details

Brand: ISR Performance

Part Number: IS-GT-350Z

Type: Single GT Y-pipe back catback exhaust

Vehicle Fitment: 2003-2008 Nissan 350Z (Z33)

Excluded: Infiniti G35 (any model year)

Material: Mandrel-bent stainless steel, TIG welded

Finish: Brushed stainless piping, polished muffler and tip

Piping: 3" single

Tip: 4.5" polished

Companion Y-pipe: IS-Z33-Y (350Z/G35 RWD only)

Combo Package: IS-Y-GT-Z33 (Y-pipe + GT exhaust, 5% savings)

Modular Mid Swap: IS-S2NRMD-350Z (non-resonated mid section, for louder character)

Sold: Complete kit

Legality: Off-road and competition use only