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																<h1><span xmlns="https://www.w3.org/1999/xhtml">YOUR #1 SOURCE FOR #2 POWER!!</span></h1>
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Grand Rock Exhaust Reducer


Grand Rock Exhaust Reducer

Grand Rock Exhaust Reducer

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SKU: GR-
Grand Rock Exhaust Reducer

Grand Rock Exhaust Reducer

Grand Rock bed kits are designed to hook up to a 4" under bed exhaust. If you have 3" or 3 1/2" exhaust, and are not currently upgrading, you will need one of our reducers. Available options are 4" to 3" or 4" to 3 1/2" from the listings below.
Grand Rock Exhaust Reducer-
4" to 3 1/2"
SKU:GR-R4I-35IA
Weight:5.00
DPP Price: $13.00 

Quantity:  
Grand Rock Exhaust Reducer-
4" to 3"
SKU:GR-R4I-3IA
Weight:5.00
DPP Price: $12.00 

Quantity:  

Grand Rock Dual 4
Grand Rock Dual 4" Stack Bed Kit
Grand Rock Single 36
Grand Rock Single 36" Angle/Mitre Cut Stack
Grand Rock Single 7
Grand Rock Single 7" Stack Bed Kit
 

Grand Rock Dual 5
Grand Rock Dual 5" Stack Bed Kit
Grand Rock Single 36
Grand Rock Single 36" Bullhorn/Bullhauler Stack
GDP Remote Mount MK-2 + Big Line Kit for 98.5-07 5.9L Dodge Cummins with Engine Mounted APPS
GDP Remote Mount MK-2 + Big Line Kit for 98.5-07 5.9L Dodge Cummins with Engine Mounted APPS
GDP MK-2 Micro-Kleen System + Big Line Combo for 03-07 5.9L Dodge Cummins without engine mounted APPS
GDP MK-2 Micro-Kleen System + Big Line Combo for 03-07 5.9L Dodge Cummins without engine mounted APPS
GDP MK-2 Micro-Kleen System for 03-07 5.9L Dodge Cummins without engine mounted APPS
GDP MK-2 Micro-Kleen System for 03-07 5.9L Dodge Cummins without engine mounted APPS
GDP Universal Inline 2 Micron Fuel Filter
GDP Universal Inline 2 Micron Fuel Filter
GDP Maximizer System 98.5-02 5.9L Dodge Cummins 24V
GDP Maximizer System 98.5-02 5.9L Dodge Cummins 24V
GDP Cummins Intake Manifold Gasket 94-07 5.9L Dodge Cummins
GDP Cummins Intake Manifold Gasket 94-07 5.9L Dodge Cummins




Diamond Eye 3
Diamond Eye 3" 2 Piece Downpipe 94-97 7.3L Ford Powerstroke
Wicked Wheel 94-03 7.3L Ford PowerStroke 170293
Wicked Wheel 94-03 7.3L Ford PowerStroke Garrett GTP38 170293
Grand Rock Dual 5
Grand Rock Dual 5" Stack Bed Kit
Grand Rock Single 36
Grand Rock Single 36" Angle/Mitre Cut Stack
MBRP 4
MBRP 4" ID to 5" ID Exhaust Reducer UA2004
Diamond Eye 4
Diamond Eye 4" Aluminized Off Road Single 03-07 6.0L Ford Powerstroke K4346A



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