SLP Exhaust System 2003-08 5.3L Express/Savana Van PowerFlo w/Dual 4inch Tips.
SLP's new catalyst-back exhaust system for the 2003-'08 GM Express/Savana Van with 5.3L features CNC-mandrel bent stainless steel tubing and a polished 304 stainless steel, low restriction muffler that meets applicable state and federal drive-by noise standards. The system includes two high-quality polished 304 stainless steel dual 4" exhaust tips that exceed the quality of the factory tip, OEM-style hangers and clamps that fit factory attachment points and hardware, and detailed installation instructions.
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SLP Exhaust Types:
| 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.
* Please note that there is a shipping discount on multiple items in the same order(excludes oversized items). The shipping amount here reflects a 1 item/part purchase. Shipping price reflects shipping within the contential US. All other locations extra.
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