996TT X-Cellerator Exhaust

Automotive Speed Technologies Corporation

eat. sleep. speedtechexhausts.com.

Automotive Speed Technologies Corporation
PO Box 602
Concord, NH 03302

Tel: (603) 227-0497
Fax: (603) 227-0498
Toll Free: 1-888-745-8344
Email: info@speedtechexhausts.com

ã 2007 Automotive Speed Technologies Corporation

Porsche 996TT X-cellerator
3” / 76mm or 2.5” / 63.5mm
Cross-Flow Exhaust System

The SpeedTech X-cellerator cross-flow exhaust was designed to offer the discerning Porsche enthusiast the ultimate exhaust system with a number of performance and sound options in one complete package.

Cross-Flow Design

By combining the exhaust pulses from both sides of the Porsche boxer motor with an "X" or "cross-flow" at the center of the
muffler, we have developed a unique, exotic sound that has to be heard to be appreciated.

Design Options

The X-cellerator system includes catalytic converter bypass pipe and muffler bypass pipe options resulting in four possible
exhaust configurations:

1) cat w/ muffler
2) cat w/ bypass pipe
3) no cat w/ muffler
4) no cat w/ bypass pipe

Our modular design incorporates V-Flange couplings for quick and easy swaps between the various sound and performance levels. This versatile design is very easy to use and results in a
quick installation or swap.

Performance

The SpeedTech X-cellerator cross-flow system saves
approximately 25 pounds of weight (full system w/ cats)
compared to the Porsche OEM exhaust. Additional weight
savings can be realized with use of the off road configurations. Whether lap or straight line speed is your goal, the weight
savings will help yield quicker track times.

Our free flowing, straight through design, along with proprietary hi-flow 100 cell “race” catalytic converters will improve the sound and performance of your Porsche 996TT. 100 cell catalytic
converters offer the quickest turbo spool possible, along with increased torque and horsepower. Faster track and ¼ mile times, better everyday performance and the pronounced engine note will provide an enhanced driving experience for all types of uses.

All components are constructed of T304 stainless steel and the muffler is packed with stainless steel wool for years of trouble free performance, even under extreme use conditions. This is a very well built, top of the line exhaust system for the
discriminating enthusiast and very fitting for the Porsche turbo.

Sound

The SpeedTech X-cellerator cross-flow system sounds fantastic and offers all options one could desire in a performance
exhaust. It is available in either a full 3” version (loud) or a 2.5” muffler version (quiet).

Our 2.5 quiet version is extremely quiet while cruising at low RPM’s and allows for easy cell phone usage, conversation and music enjoyment. Yet under acceleration it emits a very sporty, wonderful tuned sound. A perfect combination and aggressive enough for the majority of turbo owners! When optioned with the muffler bypass pipes, the 2.5 becomes a lightweight, full 3” straight pipe system for track use!

If you desire a loud, aggressive sounding system, the 3.0
version is for you! The assertive tone on start-up is followed by a dominant cup car like wail at WOT. A true race car sound for the street. The full 3” design will provide unrestricted flow, even on the most powerful built cars, as well as a stock car.

Please take a moment and listen to our videos below and hear both systems for yourself.

We offer a lifetime warranty of manufacturing defects for the original owner.

The SpeedTech X-cellerator is designed, tested and
manufactured in the USA .

Specifications:

·	100 cell “quick spool” race catalytic converters w/ V-flange

·	3”/76mm tubing throughout, including outlet or 2.5”/ 63.5mm

·	Polished T304 stainless steel construction

·	Optional cat bypass pipes (for off road use only)

·	Optional muffler bypass pipes (for off road use only)

·	Modular V-flange system for quick and easy changes

·	Stainless steel wool packing will never break down

·	Complete kit - includes all required parts for installation

·	Proprietary “cross-flow” design

·	Mirror polished 4” single outlet tips or mirror polished dual tips

·	Fully TIG welded

·	Made in USA

·	Lightweight - 27 Lbs. (with Cat bypass pipes)

·	Lightweight - 29 Lbs. (with 100 cell catalytic converters)

Porsche 996TT/997TT Performance Headers

SpeedTech Hi-Flow headers constructed of T304 stainless steel enable additional flow capacity for modified cars.
Features include Hi-Flow design, smooth merged collector and perfect fit.

996TT/997TT Headers: $995.00

At the heart of the SpeedTech X-cellerator exhaust is the “X” or “cross-flow”, which mixes the
exhaust pulses from each bank of the motor creating a unique vacuum effect. This increases
performance by accelerating the exhaust flow through the system and contributes to the unique, exotic sound that even the most discerning Porsche owner will appreciate.

Enclosed in the stainless steel membrane is an innovative, proprietary muffler
perforation configuration developed through extensive testing. The end result is exceptional flow, superior sound attenuation and a fantastic exhaust note, which must be heard to be appreciated.

SpeedTech X-cellerator Cross-Flow Exhaust
(cut-away view and flow analysis)

4” diameter polished stainless steel slant cut tips offer an aggressive look

Price: $3,295.00 (polished)
$3,095.00 (non-polished)

Price: $2,995.00 (polished)
$2,795.00 (non-polished)

3.0 Loud X-cellerator Cross-Flow “Race” Exhaust System w/ Cat Bypass Pipes - Includes
3” / 76mm muffler, bypass pipes (no cats), 3” polished tips w 4” rolled edge and all
required parts for complete installation. For off road / track use only.

100 Cell Cats w/ Muffler Bypass Pipes Bundle - 100 cell cats, no mufflers (3” muffler
bypass pipes). Includes all required parts, V-flange disconnect system, no tips. For off road / track use only.

Cat Bypass Pipes w/ Muffler Bypass Pipes Bundle - no cats, no mufflers (3” straight pipes).
Includes all required parts, V-flange, V-band, no tips. For off road / track use only.

100 Cell Cat Set (2) - L & R cats only w/ turbo flange & V-flange. Fits X-cellerator system
components.

Cat Bypass Pipe Set (2) - L & R pipe set, no cats, 3” pipe w/ turbo flange, V-flange,
02 bungs. Fits X-cellerator system components. For off road / track use only.

Muffler Bypass Pipe Set (2) - L & R muffler bypass pipes only w/ V-flange. Fits X-cellerator system

V-Band Clamp for SpeedTech V-Flange - Fits X-cellerator system components.

3” Round Clamp - Fits SpeedTech X-cellerator System.

Ceramic Coating Available (Details below)

Tips

·	pipes for increased flow

·	Interior muffler

Ceramic Coating - For SpeedTech X-cellerator System.

Ceramic Coat Tips
Price: $125.00

Ceramic Coat Muffler Internals & Mid-Pipe - In race applications, it is common to ceramic coat the interior of the exhaust pipes to speed the flow of hot gasses, in order to gain crucial HP on race day. SpeedTech has borrowed from this technology and offers ceramic
coating of the internal pipes of our X-cellerator muffler and mid-pipes to maximize the exhaust flow. The muffler is coated internally to retain the heat in the pipes and the mid-pipe is treated on both sides for performance and looks. Ceramic coating these two pieces help to quickly clear the cylinder during the exhaust stroke.

Price: $199.00

Price: $3,295.00
$3,095.00 (non-polished)

Price: $2,995.00 (polished)
$2,795.00 (non-polished)

2.5 Quiet X-cellerator Cross-Flow “Race” Exhaust System w/ Cat Bypass Pipes - Includes 2.5” / 63.5mm muffler, 2.5” polished tips w/ 4” rolled edge, 3” cat bypass pipes (no cats) and all required parts for complete installation. For off road / track use only.

Dual 2.5” polished stainless steel tips offer a clean, sport look

100 cell ultra high-flow cats enable
instant turbo spool and have V-flange clamps for quick and easy swaps between components

X-cellerator 3.0 - Full 3” / 76mm system
Price: $3,995.00 (polished)
$3,795.00 (non-polished)

3.0 “Loud” complete 4-way Cross-Flow X-cellerator Exhaust System - Full 3”/76mm System - All components for 4 configurations (includes 100 cell cats, 3” X-cellerator cross-flow
muffler, 3” cat bypass pipes, 3” muffler bypass pipes, 4” slant cut-rolled edge tips, all
required parts and instructions for complete installation).
Note: bypass pipe configurations are for off road / track use only.

X-cellerator 2.5 Quiet - 2.5” / 63.5mm system
Price: $3,995.00 (polished)
$3,795.00 (non-polished)

2.5 “Quiet” complete 4-way Cross-Flow X-cellerator Exhaust System - 2.5”-63.5mm
System (Note: bypass pipes are full 3”) - All components for 4 configurations (includes 100 cell cats, X-cellerator 2.5” quiet” cross-flow muffler, 2.5” polished SS tips w/ 4” slant cut rolled edge, 3” cat bypass pipes, 3” muffler bypass pipes, all required parts and instructions for complete installation). Note: bypass pipe configurations are for off road / track use only.