ISR Performance Universal Exhaust Silencer - For ISR GT Series Exhausts

The ISR Performance Universal Exhaust Silencer is a removable in-tip silencer designed for the ISR GT Series exhausts. Drops volume on the GT Single exhausts when you need a quieter exhaust for noise-restricted tracks, neighborhood considerations, or daily-driving scenarios where the full uncapped tone is too much. Slides into the exhaust tip and locks with a set screw.

What It Does

The GT Series exhausts are tuned for an aggressive deep tone with the silencer removed. Installing this silencer baffle in the tip reduces volume noticeably without affecting overall flow significantly - it's a real-world tradeoff for situations where the full exhaust note isn't appropriate (noise-restricted track days, late-night drives, neighborhood manners). When you want the full tone back, the silencer pulls out.

Installation Notes

• Exhaust drilling required: The exhaust tip needs to be drilled to accommodate the silencer's set screw hole
• Set screw NOT included: Source a standard set screw separately to match the drilled hole

This is a one-time install modification. After the tip is drilled and the set screw is in place, swapping the silencer in and out is a 30 second job.

Critical Compatibility Exclusion

DOES NOT FIT Series II Titanium GT Exhausts. The titanium GT Series uses a different tip configuration that this silencer isn't dimensioned for. Confirm your exhaust model before ordering.

Compatible Exhausts

• ISR GT Series single-exit exhausts (4.5 inch tip)
• NOT compatible: Series II Titanium GT exhausts

Fitment

• Universal for ISR GT Series exhausts (non-titanium)

What's in the Box

• 1x ISR Performance universal in-tip exhaust silencer

NOT included: Set screw (source separately)

Product Details

Brand: ISR Performance

Part Number: IS-UNIS-GT

Type: Removable In-Tip Exhaust Silencer

Application: ISR GT Series exhausts (non-titanium)

NOT Compatible With: Series II Titanium GT exhausts

Installation: Exhaust tip must be drilled for set screw hole

Set Screw: NOT included (source separately)

Function: Reduces exhaust volume; removable for full tone when desired

Sold: Individually

Legality: Off-road and competition use only