This 1967 425HP GTO sports a Pypes 2.5" header-back system with an X-pipe. The system includes a pair of Pypes RacePro mufflers because of it's superior flow ratings.
1967 GTO restoration
My 67 GTO resto project, those were the good old days, nothing better than pure american muscle.
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1967 GTO Pypes X-pipe exhaust
My 1967 GTO first startup at Don's Auto speed shop in Kenosha WI. Can't wait to get it on the road!
67 GTO 3" exhaust w/ Dynomax Super Turbo mufflers
Test run of the new 3" Exhaust kit on my Goat. If anyone is interested, the set up here is a '73 SD 455 bored .60 over, .502 lift cam, factory 400 heads, an air gap style intake, Holley 600 cfm marine double pumper carb, headers, and Dynomax Super turbo mufflers.
GTO: 1967 4 speed
vid of going thru the gears.
A little vid of the goat in action.
shot holding cam and steering wheel and shifting at same time.
quite amateur.
Chevelle movie for pypes 12-08.wmv
'70 chevelle with 555 ci big block. 11:1 pump gas engine with a big solid roller, AFR 335's, vic jr., pro-systems HP1000 carb, 2" headers, 3" collectors, full 3" duals with x pipe running Pypes Race Pro mufflers. Electric cutouts are installed. Car has a TKO600 trans and 12 bolt rear end in this video. GForce GF5R and Ford 9" are going in this winter. Engine made 792hp/701tq at the flywheel on a superflow engine Dyno. Chassis Dyno showed 618rwhp AT 5500 ONLY - data did not log up to the 6800 it was run to due to a Dyno error. Based on the 70hp increase from 5500 to 6800 rpm on the engine Dyno (horsepower peaks at 6800rpm), we are guessing we have around 670-690hp at the wheels. Car will be back on the Dyno in the spring. Engine built by Mike Lewis of Lewis Racing Engines, Laytonville, CA.
