Supreme SP Cat Back Exhaust by Greddy

The Supreme SP much larger diameter piping, resonators and mufflers, but also smoothest the layout for maximum performance with good sound suppression. This cat-back exhaust starts out with a full 3” mid-pipe with a large straight-through resonator to tune out drone. The next section smoothly transitions into dual 2.5” diameter piping. Improved dual GReddy straight-through mufflers with dual, double wall tips on each muffler finish off the exhaust. GReddy designers carefully position the dual mufflers and staged tips to flow with the GV-chassis€™ bodylines. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust.

Features

• Cat-back, dual muffler system
• A full 3” mid-pipe with a large straight-through resonator

Specifications

• Number of pieces: 4
• Piping: 76 mm (3") - 2x 63.5mm (2.5")
• Tip(s): 4x 89 mm (3.5")
• Gasket(s): 2x 2.5" & 1x 3" oval (qty: 3 included) replacement(s)
• Resonator: Yes
• Sound level: L89 & R91 dB(a) @4000

Applications

• 2011-2014 Subaru STI Sedan

What's In The Box?

• Supreme SP Cat Back Exhaust