how much HP could I be losing?

TOM90LX · 07-30-2001, 01:58 PM

Recently I installed a 2.5" dynomax cat back and because I have a GlobalWest Traklink torque arm, there's an aluminum plate that gets in the way of the flowtubes leading to the mufflers. I went to a meineke for help installing the catback system and they had to custom bend a new flow tube to go from the h-pipe to the muffler on the driver's side. They used a 2 1/4" pipe and they crimped it like crazy!! They said they had no way to bend a 2 1/2" pipe and they couldn't do mandrel bends either in the shop.. so now there's a bottle neck about 1.5" instead of nice flowing 2.5" on one side. Is this going to hurt performance? Should I go somewhere else to get it fixed right or is it not worth it??

Tom

------------------
90 LX 5.0 Convert.
moroso cold air ,73 mm MAF, 65 mm FMS TB, Cobra intake, adj fuel pres reg. 24# inj, 155lph fuel pump, accel supercoil, electric fan, 180 deg balanced theromstat, 3 row HD radiator, march underdrive pulleys, GT40X heads, 1.7 Roller Rockers, Mac 1 5/8 shorty headers, hi-flow 2.25" cats, dynomax superturbo 2.5" cat back, g-brace, strut tower brace, Global West TBF-1 lower control arms, caster/camber plates, steeda rear adj swaybar, GlobalWest Traclink torque arm, SVO 73mm ca

exgmguy · 07-30-2001, 04:17 PM

Lots of shops can bend 2 1/2. I would find one that does, and get it straightened out.

------------------
1988 Mustang GT
11.8 @ 123 (7/14/01)
1992 BadAzz Wrangler
1993 Explorer

07-30-2001, 04:20 PM

Oh man....sorry to hear that. I would NEVER go to a Midas/Meineke/Jiffy Lube etc etc w/ my baby!

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach drag-launch spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; Cervini's 3" turbo hood; A/C-less; cat-less; 2 chamber Flos; Corbeau racing seats; FMS 30# injectors; JMS chip; Holley 190lb fp; TFS track heat Intake (12.299 @ 113 - 1.78 60')

07-30-2001, 01:58 PM	#1
TOM90LX Registered Member Join Date: Jul 2001 Location: Hightstown, NJ Posts: 14	how much HP could I be losing? Recently I installed a 2.5" dynomax cat back and because I have a GlobalWest Traklink torque arm, there's an aluminum plate that gets in the way of the flowtubes leading to the mufflers. I went to a meineke for help installing the catback system and they had to custom bend a new flow tube to go from the h-pipe to the muffler on the driver's side. They used a 2 1/4" pipe and they crimped it like crazy!! They said they had no way to bend a 2 1/2" pipe and they couldn't do mandrel bends either in the shop.. so now there's a bottle neck about 1.5" instead of nice flowing 2.5" on one side. Is this going to hurt performance? Should I go somewhere else to get it fixed right or is it not worth it?? Tom ------------------ 90 LX 5.0 Convert. moroso cold air ,73 mm MAF, 65 mm FMS TB, Cobra intake, adj fuel pres reg. 24# inj, 155lph fuel pump, accel supercoil, electric fan, 180 deg balanced theromstat, 3 row HD radiator, march underdrive pulleys, GT40X heads, 1.7 Roller Rockers, Mac 1 5/8 shorty headers, hi-flow 2.25" cats, dynomax superturbo 2.5" cat back, g-brace, strut tower brace, Global West TBF-1 lower control arms, caster/camber plates, steeda rear adj swaybar, GlobalWest Traclink torque arm, SVO 73mm ca

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07-30-2001, 04:17 PM	#2
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	Lots of shops can bend 2 1/2. I would find one that does, and get it straightened out. ------------------ 1988 Mustang GT 11.8 @ 123 (7/14/01) 1992 BadAzz Wrangler 1993 Explorer

07-30-2001, 04:20 PM	#3
bada$$lx Guest Posts: n/a	Oh man....sorry to hear that. I would NEVER go to a Midas/Meineke/Jiffy Lube etc etc w/ my baby! ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach drag-launch spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; Cervini's 3" turbo hood; A/C-less; cat-less; 2 chamber Flos; Corbeau racing seats; FMS 30# injectors; JMS chip; Holley 190lb fp; TFS track heat Intake (12.299 @ 113 - 1.78 60')