The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - dumps or side exit? (and other exhaust stuff)

shewlf2b · 05-13-2002, 03:22 PM

I had a 74 gmc with hooker comps, h-pipes and flowmasters dumped right after the muffler all 2.5". WOW what a rumble at low idle. It was awsome. Made you want to stomp on it. Set off car alarms inside parking garages all the time. The shop that installed the system told me to dump it was acually better. All the extra after the mufflers was only to get the fumes to the rear and caused restriction anyway. The only drawback was if you travel on dirt roads it really boils up the dust. So just a pair of turn downs are the best. The turn down helps to draw also from the air under the rig while your sailing down the hwy. This system upped my milage and power. Sold the truck back to the original owner and she prefers to drive this plane jane farm truck over her lincoln town car. And she is a tiny little 60yr old indian lady. Quite a truck.

05-13-2002, 03:22 PM	#7
shewlf2b Registered User Join Date: May 2002 Location: Okanogan,WA USA Posts: 5	I had a 74 gmc with hooker comps, h-pipes and flowmasters dumped right after the muffler all 2.5". WOW what a rumble at low idle. It was awsome. Made you want to stomp on it. Set off car alarms inside parking garages all the time. The shop that installed the system told me to dump it was acually better. All the extra after the mufflers was only to get the fumes to the rear and caused restriction anyway. The only drawback was if you travel on dirt roads it really boils up the dust. So just a pair of turn downs are the best. The turn down helps to draw also from the air under the rig while your sailing down the hwy. This system upped my milage and power. Sold the truck back to the original owner and she prefers to drive this plane jane farm truck over her lincoln town car. And she is a tiny little 60yr old indian lady. Quite a truck.