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Once the shootout is all wrapped up we will lock it, close it and pin it to the top.
I want to make a few statements here. First off do not get all caught up in the peak HP number. All dynos read different. This is why we have a base line run to see the gains made with each pipe. The dyno used is a dyno jet dyno. All of the pipes were tuned for max HP. Some pipes liked 13-1 a/f and some liked 13.8-1.
1. WILL THE AFTER MARKET EXHAUST PIPES MAKE MORE HP THEN THE STOCK EXAUST WITH THE BAFFLE PULLED OUT?
A. YES ..... All of the pipes tested ..... SO FAR.... did make more HP then the stock exhaust with the baffle pulled out. Most of the aftermarket pipes tested were VERY close. Some made a little more then others.
2. DB'S ...... All of the db testing was done at 3750 RPM. The spark arrestors were removed on the aftermarket exhausts for this test.
3. All dyno runs were done with 91 octane pump gas.
The dyno sheets will be listed below. We will show each pipe run layed up aginst the stock pipe with the baffle pulled. Then you can see how much better each pipe does over the stock set up.
Stock pipe - Baffle out, air box lid off and a Power commander
Peak HP - 40.96
Max Torque - 30.15
95db at 3750 RPM
Nmotion pipe - 9 inch version
Peak HP -
Max Torque -
114db at 3750
The N-motion pipe is a multi step pipe. It has a thick billet head pipe flange and a trick billet canister mount. The n-motion pipe is available with 2 canister options a 9 inch canister, a 12 inch low db canister. The 12 inch low db canister is $85.00 extra. The n-motion pipe does have a riveted canister this will make repacking the canister alittle more time consuming.
Nmotion pipe - 12 inch low DB version
Peak HP
Max Torque
104db at 3750
The N-motion pipe is a multi step pipe. This low DB version is very trick. The pipe features a titanuim canister and carbon fiber end cap. It has a thick billet head pipe flange and a trick billet canister mount. The n-motion pipe is available with 2 canister options a 9 inch canister, a 12 inch low db canister. The 12 inch low db canister is $85.00 extra. The n-motion pipe does have a riveted canister this will make repacking the canister alittle more time consuming.
Barker pipe -
Peak HP
Max Torque
db at 3750
Pro Circuit pipe -
Peak HP - 44.61
Max Torque - 31.52
104db at 3750 RPM
The Pro Circuit pipe has mounts for the stock head pipe heat shield, but it does not have mounts for the stock mid pipe heat shield. The Pro Circuit's can is riveted together making repacking alittle more time consuming.
Baldwin Racing pipe-
Peak HP - 44.93
Max Torque - 32.18
102db at 3750 RPM
This is a REALLY nice piece. Baldwin went the extra mile incorperating alot of nice features into their pipe. The pipe has machined fittings for the canister and mid pipe making intalling it and removing it very easy. The Baldwin pipe also has a Billet canister mount, Thick head pipe flange, both the head pipe and mid pipe stock heat shields will bolt on. To top it off the end cap unbolts for easy canister repacking.
Trinity Racing pipe -
Peak HP - 45.16
Max Torque - 33.05
106db at 3750
The Trinity pipe is a multi step pipe. It has a mount for the head pipe heat shield, comes ceramic coated, and uses a trick billet clamp to hold on the canister. The pipe's end cap does unbolt for easy canister repacking.
LRD pipe - Anniversary Edition Exhaust .......OPTIONAL 1.9 end cap sleeve installed
Peak HP - 45.26
Max Torque - 33.35
102db at 3750
This exhaust features a modular billet rear end-cap design that utilizes sleeves to tune performance and sound. The Anniversary Edition pipe comes with a 1.25 inch end cap sleeve. You can buy the .875 inch sleeve or the 1.9 inch sleeve at $29.95 each from LRD. These other sleeves DO NOT COME WITH THE PIPE. This LRD pipe has a HUGE canister diameter. The LRD pipe does have mounts for the stock head pipe heat shield, but no mounts for the mid pipe heat shield. This pipe does have a billet header flange, but it is not as thick as some of the others . The pipe's end cap does unbolt for easy canister repacking.
LRD pipe - Anniversary Edition Exhaust ....... 1.25 end cap sleeve comes with this pipe
No dyno numbers with this endcap, but expect a BIG HP loss
100db at 3750
Here is a photo of the 1.25 inch sleeve that comes with the pipe
This photo gives you an idea of how much you are plugging up
LRD pipe - Anniversary Edition Exhaust ....... OPTIONAL .875 end cap sleeve installed
No dyno numbers with this endcap, but expect a BIG HP loss
97db at 3750
Here is a photo of the OPTIONAL .875 inch end cap sleeve
This photo gives you an idea of how much you are plugging up
Motoworks pipe -
Peak HP - 45.46
Max Torque - 33.05
102db at 3750
This pipe does have a billet header flange, but it is not as thick as some of the others. The head pipe does not have any steps and the diameter is about the same as the stock head pipe. Once it goes alittle ways into the mid pipe it does have a small step. The Motoworks pipe does have a riveted canister this will make repacking the canister alittle more time consuming.
Dasa pipe - 16 inch standard version
Peak HP - 45.6
Max Torque - 33.25
103db at 3750 RPM
The Dasa pipe is a multi stepped pipe. All Dasa pipes are hand made here in the USA and the quality really shows with perfect tig welds. The Dasa pipe does not have any heat shield mounts. It does have alot of nice features including TRICK billet end caps, a billet canister mount and a THICK head pipe flange. The Dasa pipe's end cap does unbolt for easy canister repacking.
Sparks Racing pipe - BIG CORE version
Peak HP - 45.72
Max Torque - 32.62
107 at 3750 RPM
The sparks pipe does not have any mounts for a heat shield. Sparks did make the end cap unbolt for easy canister repacking.
HMF pipe -
Peak HP - 45.72
Max Torque - 32.80
105db at 3750 RPM
The HMF pipe is a multi spepped pipe. It does have a riveted canister this will make repacking the canister alittle more time consuming. This pipe does not have any heat shield mounts.
Yoshimua pipe - full stainless steel version
Peak HP - 45.76
Max Torque - 33.55
102db at 3750
The Yoshi pipe features a billet canister mounting bracket and mounts for both mid pipe and head pipe heat shields. The also comes with a custom yoshi head pipe heat shield. The pipe does not have any steps untill right befor the canister. The Yoshi pipe does have a riveted canister this will make repacking the canister alittle more time consuming.
ESR pipe -
Peak HP - 46.15
Max Torque - 32.48
106db at 3750 RPM
The ESR pipe is a multi stepped head pipe that comes ceramic coated and includes a very cool clamping billet canister mount. It does not have any heat shield mounts. This pipe's end cap does unbolt for easy canister repacking.
Dasa pipe - 13 inch CUSTOM FUELATV version 106db at 3750 RPM
Peak HP - 46.3
Max Torque - 33.25
All Dasa pipes are hand made here in the USA and the quality really shows with perfect tig welds. The Dasa pipe does not have any heat shield mounts. It does have alot of nice features including TRICK billet end caps, a billet canister mount and a THICK head pipe flange. The Dasa pipe's end cap does unbolt for easy canister repacking.
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