ISR Performance OMS Spec Carbon Tip Exhaust - Nissan 350Z

The ISR Performance OMS Spec Carbon Tip Exhaust is a Y-pipe back dual-exit catback for the Nissan 350Z. Mandrel-bent stainless steel with 3 inch piping, dual 4 inch carbon-look tips, and a resonated front pipe shaped to clear the factory W brace. Tuned for a subtle, deep exhaust note - the option for builders who want presence without aggression.

What It Does

Y-pipe back exhaust replaces the entire exhaust system from the Y-pipe to the tips. The 3 inch mandrel-bent stainless construction maintains exhaust velocity while flowing significantly better than the factory exhaust. Dual 4 inch tips with a carbon-look wrap give a clean rear-end aesthetic without the chrome/polished metal look of traditional exhaust tips.

Tone-wise, the OMS Spec sits at the more refined end of ISR's 350Z exhaust lineup. Where the EP Dual is aggressive and loud and the GT Single is deep and balanced, the OMS Spec is subtle and deep - the right pick if you want a quality exhaust note without the volume that comes with the EP Dual.

W Brace Clearance Design

The resonated front section is built with a slight hump to clear the factory W brace. This is the kind of design detail that prevents installation surprises on a fully-stock-suspension car. If your car retains the factory W brace (which most do), this exhaust fits without modification.

Critical Fitment Note

ONLY works with a Nissan 350Z running the stock differential cover. Aftermarket differential covers can interfere with this exhaust's routing. If you're running a track-spec or finned aftermarket diff cover, confirm clearance before ordering, or plan to swap back to the factory cover for this exhaust.

Fitment

• 2003-2008 Nissan 350Z (Z33)

Requires stock differential cover.

Features

• Resonated front pipe with W brace clearance hump
• Subtle and deep exhaust tone
• Precision TIG welded stainless steel
• Brushed stainless muffler finish
• Carbon-look dual 4 inch tips
• 3 inch piping throughout
• Works on naturally aspirated and forced induction builds

Compared to Other 350Z Exhaust Options

• OMS Spec (this product): Subtle, deep, refined tone - dual carbon-look 4 inch tips
• EP Dual: Aggressive, louder - dual polished 3 inch tips, requires bumper modification
• GT Single (polished or burnt tip): Balanced, deep tone - single 4.5 inch tip

What's in the Box

• 1x Resonated front pipe (with W brace clearance)
• 1x Mid section
• 1x Muffler section with dual 4 inch carbon-covered tips
• 2x 2-bolt 3 inch exhaust gaskets
• 1x 2-bolt flange adapter
• 4x Bolts
• 4x Nuts

Product Details

Brand: ISR Performance

Part Number: IS-OMS-350Z-CT

Type: Y-pipe back Dual Exhaust (OMS Spec)

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

CRITICAL FITMENT: Stock differential cover REQUIRED - aftermarket diff covers may interfere

Material: Mandrel-bent stainless steel

Muffler Finish: Brushed stainless

Tip Configuration: Dual 4 inch carbon-look tips

Piping Diameter: 3 inch

Front Pipe: Resonated with W brace clearance hump

Tone Profile: Subtle, deep, refined

Application: Naturally aspirated and forced induction

Construction: Precision TIG welded

Sold: Complete Y-pipe back system

Legality: Off-road and competition use only