SLP’s new GTO PowerFlo exhaust system employs an integral X-pipe crossover and dual low-restriction mufflers to provide superior flow and performance, while minimizing interior resonance. Expect a smoother, mellower tone than that of our Loud Mouth system, along with a subtly aggressive edge under hard acceleration. Like all SLP exhaust systems, the GTO PowerFlo is hand-built from 100 percent stainless steel and carries a limited lifetime warranty.
NOTE: Contents may vary slightly from photo.
Features
Constructed entirely from mandrel-bent stainless steel (2.5 OD)
Equipped with an integral X-pipe crossover for optimum performance and sound quality
High-luster PowerFlo mufflers combine great looks; superior flow; and a deep, muscular tone
Exclusive modular design allows easy interchangeability between mufflers and SLP race resonators
Features two hand-polished, double-wall tips
Designed to OEM standards of fit and durability
Covered by our limited lifetime warranty
Applications:
2004 - 2004 Pontiac GTO
SLP Exhaust Type Descriptions/Definitions/Details: (use as a guide to the exhaust system on this page for details about the muffler type.)
Model
Type
Sound Characteristics*
Noise Level*
Bullet-Type Open Resonator (or muffler delete)
Extremely aggressive; powerful high- and mid-range tones with
moderate resonance
Muffling, Bullet- Type Resonator
Similar to original Loud Mouth, but with a throatier tone and reduced
resonance
Straight-Through "Traditional" Muffler
Deep, rich, and mellow; minimal resonance
*
Volume and sound quality will vary based on engine and exhaust-system
specifications. Loudmouth also refers to some systems without any resonators such as the 2010 Camaro Loud Mouth and the 2005 Mustang Loud Mouth Axle backs where the mufflers are removed altogether. Images below are representations in order to better understand the differences.
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