ISR Performance MBSE Dual Exhaust (Blue Tip) - 98-05 Lexus GS300

The ISR Performance MBSE Dual Exhaust is a catback system for the 1998-2005 Lexus GS300, built from mandrel-bent stainless steel with dual 2.5-inch piping and burnt blue tips. It opens up flow over the restrictive factory setup while delivering a deep, aggressive tone that works on both naturally aspirated and turbocharged 2JZ builds.

What It Does

Catback dual exhaust replaces the entire exhaust system from the cat back to the tips. Mandrel-bent piping maintains a consistent 2.5-inch inside diameter through every bend, which is critical for keeping exhaust velocity up on a turbocharged 2JZ-GE or 2JZ-GTE-swapped GS300. The "burnt" blue tips give the car a distinctive look that pairs well with the brushed stainless finish.

Fitment

• 1998-2005 Lexus GS300 (JZS161)

What's in the Box

• 1x Mid-pipe
• 2x Rear muffler sections
• 1x 2-bolt 3-inch exhaust gasket
• 2x 2-bolt 2.5-inch exhaust gaskets
• 6x Bolts
• 6x Nuts

Product Details

Brand: ISR Performance

Part Number: IS-MBSE-GS3002G

Type: Catback Dual Exhaust

Vehicle Fitment: 1998-2005 Lexus GS300

Material: Mandrel-bent stainless steel

Finish: Brushed stainless

Piping Diameter: Dual 2.5-inch

Tips: Burnt blue stainless

Construction: Precision TIG welded

Application: Naturally aspirated and forced induction

Installation: Direct bolt-on, gaskets and hardware included

Sold: Complete dual exhaust system

Legality: Off-road and competition use only