Puch Exhausts

This is a little summary of Puch Maxi pipes with some basic info about what they are made for and how they perform.

"Made for" reflects to the cylinder size these exhausts work best on.

"Sound" reflects to the sound the muffler makes. Please keep in mind that sound is also dependant on the type of cylinder, air filter & carburettor you use.

"Rev-range" reflects to the RPM range this exhaust is useable for. IE. you have a Metrakit with a low to mid rev-range, and you want a Simonini that has a pretty high till very high rev-range, you'll know that isn't going to be the best combination.

"Powerband" reflects to the pull the exhaust creates and where it happens.

"Quality" reflects to lifetime, finish and other aspects that have to do with the quality of the material.

Biturbo

Made for: 50cc to 70cc

Sound: Heavy

Rev-range: Mid-revs till high

Powerband: Average

Quality: Good for the price. Silencer commonly rattles apart.

A diagram of the measurements of the Biturbo

Bullet

Made for: 50cc to 70cc

Sound: Heavy

Rev-range: Mid-revs till high

Powerband: Average

Quality: Silencer sucks and they occasionally drop off after a while

A diagram of the measurements of the Bullet

Gianelli

Made for: 50cc

Sound: Racey

Rev-range: Mid to top

Powerband: Mid-revs till very high

Quality: Very good

Note: This pipe is very rare

Homoet P4

Made for: 60cc & 50cc.

Sound: Racey

Rev-range: Pretty high till very high

Powerband: Worthless low end, great top end

Quality: Good, but the paint lets go soon

Homoet P6 & P8

Made for: P6 = 60cc to 70cc. P8 = 75cc+ and cylinders with an angled exhaustport

Sound: Racey

Rev-range: Pretty high till very high

Powerband: little low end, great top end

Quality: Good, but the paint lets go soon

Jamarcol

Made for: 50cc to 70cc

Sound: Loud as *&#**#

Rev-range: Pretty high

Powerband: Comes in late

Quality: Ok for the price

A diagram of the measurements of the Jarmacol

LeoVince HM

Made for: 50cc

Sound: Dirt-bike like

Rev-range: Mid-revs

Powerband: Good pull, holds back at top

Quality: Good

Note: Must remove center-stand. Not suitable for 2-speed engines

A diagram of the measurements of the Leovince HM

Proma CC (Circuit)

Made for: 50cc till 70cc

Sound: Thin

Rev-range: Mid-revs

Powerband: Good pull

Quality: Good

A diagram of the measurements of the Proma CC (Circuit)

Proma GP

Made for: 50cc till 70cc

Sound: Dirt-bike-ish, thin

Rev-range: low-revs to upper Mid-revs

Powerband: Nice pull

Quality: Good, but is rust-sensitive

Note: Considered by many the bestexhaust for 50cc stock cylinder.

A diagram of the measurements of the Proma GP

Proma LowBoy Twin

Made for: 50cc

Sound: Nice, twin muffler

Rev-range: Mid-revs till pretty high

Powerband: Nice pull

Quality: Good, but is rust sensitive

Proma Warrior

Made for: 50 till 70cc

Sound: Metalish

Rev-range: Mid-revs till pretty high

Powerband: Nice pull

Quality: Good, but is rust sensitive.

A diagram of the measurements of the Proma Warrior

Cigar (stock)

Made for: Stock 50cc

Sound: Soft purr

Rev-range: Low

Powerband: Almost non-existant

Quality: Good

Simonini

Made for: 70cc+

Sound: Metalish with aluminum silencer. Racey with kevlar silencer.

Rev-range: Pretty high till very high

Powerband: Low end is lost, but top end is extreme

Quality: Very good

A diagram of the measurements of the Simonini

Technigas Next

Made for: 50cc till 70cc

Sound: Very quiet, quieter on the bottom than tecno estoril, but gets louder up top

Rev-range: Low to medium- high (3000-7000 stock, 4000-8000 with kit)

Powerband: Hits hard early and pulls to a fat midrange, shuts down like tecno estoril but a bit later

Quality: Very very good, probably the sturdiest of the non-american made pipes

Comments: Somewhat expensive for the performance, but will probably last the life of the bike. Great for mildly tuned stock cylinders or conservative kits, a good pipe to pair with a 60cc airsal or alukit reed for a nice torquey around-town 45mph bike. The header is long and narrow so the power comes on late, but it is well designed for a broad subtle curve, and doesn't have the restrictor that causes the estoril to shut down. If you want something cheaper, get an estoril, if you want something faster get an estoril and derestrict it. If your mom is riding the bike to commute spend the money on the Technigas

Technigas Twin

Made for: 50cc till 70cc

Sound: Unknown

Rev-range: Pretty high

Powerband: Mid-revs till pretty high

Quality: Good

Note: To fit, you must remove the pedals and add a mounting point on the right side.

Tecno Boss

Made for: 50-70cc

Sound: Poppy

Rev-range: High on a stock cylinder, mid to high on a kit

Powerband: Comes on very gradually, for a stock cylinder with mild porting it will provide enough boost to let your cylinder keep pulling higher, with a kit you will feel a more noticeable gain from 8000 up. Not as powerful as a 'big pipe' so it wont catapult you into demonic super revs, but a nice big header wont hold you back.

Quality: good, baffle is welded into the rest of the pipe so it doesn't have the same drawbacks as bullet/biturbo like pipes.

Notes: looks stock, considered by many the best of the lower price bracket puch pipes. can be paired with almost every cylinder for a modest increase with limited drawbacks. Can result in a moderate loss of torque on 50cc. Header extends into chamber at weld about 2.5 inches, so for maximum performance remove the offending chunk of pipe and weld it back together.

A diagram of the measurements of the Tecno Boss

Tecno Hunter

Made for: 50cc & 60cc

Sound: Metalish

Rev-range: Average till pretty high

Powerband: Mid-revs

Quality: Fair

Note: Can't be used with pedals or centerstand.

Tecno Circuit

Made for: 50cc till 70cc

Sound: Heavy, bit metalish

Rev-range: Mid-revs till pretty high

Powerband: Mid-revs

Quality: Bad, silencer is a disaster

Note: Also known as " Tecno Racing"

Note 2: This exhaust is sometimes restricted. To remove the restrictor, read this: Unrestricting Tecno Circuit Exhaust

Tecno Estoril

Made for: 50cc till 70cc

Sound: Good

Rev-range: Mid-revs till pretty high

Powerband: Mid-revs till pretty high

Quality: Fair, silencer & paint are inferior

Note: Reports have surfaced of an interior restriction. To remove the restrictor, read this: Unrestricting a Tecno Estoril Exhaust

Made by SchijnHeilig. And yes, this took some work to copy.

Original is on: Puch Forum.com

Credit for measurement diagrams goes to Jorismb from Puchforum.com