Porsche 911 996 Muffler Bypass Exhaust

[scott449]

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

[whs]

I'll go out on a limb here and say these would not be street legal in most states and probably would exceed the noise level requirements at most tracks. If you compare the difference between stock mufflers and performance mufflers, it's pretty significant. I can't imagine bypassing the mufflers all together!

Will

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

[yasuro]

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

my understanding is that an engine needs some backpressure. bypass removes just about all of it so you'll experience some loss of torque at low RPMs. as to whether or not they'll add 12 HP, the only way to know for sure is to dyno your car with them. try getting on a dyno check the HP and then get on the dyno again without mufflers. this will show you what changes, if any, you'd experience with bypass pipes.

[silver_6r]

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

my understanding is that an engine needs some backpressure. bypass removes just about all of it so you'll experience some loss of torque at low RPMs. as to whether or not they'll add 12 HP, the only way to know for sure is to dyno your car with them. try getting on a dyno check the HP and then get on the dyno again without mufflers. this will show you what changes, if any, you'd experience with bypass pipes.

its has been proven that NOTHING ADDS ANY SIGNIFICANT power increase to NA engines other than a SC. i have had muffler by-pass pipes.. and other than sounding wonderful... do not add HP... and for street use are not good as they shift the torque curve way up... noticably.

make your own with 90' stainless elbows, weld straight sections to them... get a shop to flare out one side so that they slide over the exhaust.... add tips... or not.... WAY CHEAPER...same result

Edited October 24, 2008 by silver_6r

[scott449]

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

my understanding is that an engine needs some backpressure. bypass removes just about all of it so you'll experience some loss of torque at low RPMs. as to whether or not they'll add 12 HP, the only way to know for sure is to dyno your car with them. try getting on a dyno check the HP and then get on the dyno again without mufflers. this will show you what changes, if any, you'd experience with bypass pipes.

its has been proven that NOTHING ADDS ANY SIGNIFICANT power increase to NA engines other than a SC. i have had muffler by-pass pipes.. and other than sounding wonderful... do not add HP... and for street use are not good as they shift the torque curve way up... noticably.

make your own with 90' stainless elbows, weld straight sections to them... get a shop to flare out one side so that they slide over the exhaust.... add tips... or not.... WAY CHEAPER...same result

cool thanks that is what i needed to know

[Chris_C]

this item is listed on Ebay and i was wondering if any have had experence with them. do they really add 12HP?

http://cgi.ebay.com/ebaymotors/Parts-Acces...d=p4506.c0.m245

my understanding is that an engine needs some backpressure. bypass removes just about all of it so you'll experience some loss of torque at low RPMs. as to whether or not they'll add 12 HP, the only way to know for sure is to dyno your car with them. try getting on a dyno check the HP and then get on the dyno again without mufflers. this will show you what changes, if any, you'd experience with bypass pipes.

its has been proven that NOTHING ADDS ANY SIGNIFICANT power increase to NA engines other than a SC. i have had muffler by-pass pipes.. and other than sounding wonderful... do not add HP... and for street use are not good as they shift the torque curve way up... noticably.

make your own with 90' stainless elbows, weld straight sections to them... get a shop to flare out one side so that they slide over the exhaust.... add tips... or not.... WAY CHEAPER...same result

cool thanks that is what i needed to know

I have done the bypass pipes as well, they are great fun!.... but if you put your foot into it you will be heard at least 1 mile away.... :lol: