05+ GT's look in here

[ThePunisher95]

So he trapped 107 on stock exhaust manifolds?Even better!! How hard was it to install them?

[fazm]

took about 2.5 hours. look and sound sweet

[06GT]

13.70 @ 103.6, at Firebird.

C&L Racer, Brenspeed 91 Octane Mail-order tune
FRPP Handling Pack
Nitto 285/40/18s out back
Shelby GT Mufflers

[The Nunn's]

ya, i just installed some long tubes on it last week, so im lookin forward to seeing what it can do now, maybe ill throw my slicks on it if he lets me drive it, and go for some 12.50s

bad choice of mod. u lose around 2-4 rwhp on LT's for the s197 platform
he prb would have gotten more power out of a set of udp's

[fazm]

bad choice of mod. u lose around 2-4 rwhp on LT's for the s197 platform
he prb would have gotten more power out of a set of udp's

thats funny because the dyno showed different. and he already has udp's. he has quite a few mods now.

some s197 gts have seen 27rwhp with lt's and a tune and no other mods.

id love to see a dyno where someone lost 2-4rwhp with going long tubes.

[ThePunisher95]

bad choice of mod. u lose around 2-4 rwhp on LT's for the s197 platform

In my eyes the only way I see that happening is without a tune and the computer freaks out!

[The Nunn's]

13.70 @ 103.6, at Firebird.

C&L Racer, Brenspeed 91 Octane Mail-order tune
FRPP Handling Pack
Nitto 285/40/18s out back
Shelby GT Mufflers

ouchie if i were you i would get rid of that brenspeed tune, that way u dont have to replace those expensive spark plugs....i put my car on the dyno and the A/F was a steady 14.9 across the board and had 36 degrees of timing which is a shit load, a few of our other customers had the same problem. i did a custom tune on the car and it picked up 2 tenths and driveabily was awsome...with those mods that car should go 13.4 to 13.5 and have at least 10-20 more HP. it should be in the 285-295 HP range given that it's a stick, not auto. These sticks tend to have about 10-20 more HP than an auto car.

[Tortuga]

thats funny because the dyno showed different. and he already has udp's. he has quite a few mods now.

some s197 gts have seen 27rwhp with lt's and a tune and no other mods.

id love to see a dyno where someone lost 2-4rwhp with going long tubes.

I'm sure he can get u one this weekend. the key word u said Tho is tune not lts. There have been numerous mustangs dynoed with poor results when adding long tubes....

[The Nunn's]

I'm sure he can get u one this weekend. the key word u said Tho is tune not lts. There have been numerous mustangs dynoed with poor results when adding long tubes....

We've had cars in the shop ranging from 250-800hp, which with tune or without a tune, there has been been absolutely no benefit from long tubes. I'll try to get a dyno graph of some examples for ur viewing pleasure this weekend.

[BurnTire]

We've had cars in the shop ranging from 250-800hp, which with tune or without a tune, there has been been absolutely no benefit from long tubes. I'll try to get a dyno graph of some examples for ur viewing pleasure this weekend.

I am an example of Long Tubeless Power. Stock Manifolds and Cats running good ET's.

Long tubes may help me a little, but the main benefit would be taking heat away from the valves.