GHL vs. Perrin

[Talrum]

Professor MSP , So the gains are really noticable? Are you running stock cat-back? Good to hear since i thought the S-pipe was the main hinderance, another option for me then.

Just to be absolutely clear, the Apex pipe replaces the J-pipe and the midpipe, the latter being the straight pipe containing the two catalytic converters.

I have found that the addition of just the Apex J-pipe/midpipe adds a nontrivial "kick in the pants" to the car's pull, especially at the top end, and at the same time opens up and deepens the exhaust note nicely, all without being too much louder than stock. I highly recommend this modification.

 

[terbow]

nah the jpipe back its the real issue, but i say, if your going to do soemthing, mine as well get the best. but yes the S pipe isnt AS big an issue as the J and cats, but its still a restrictive part.

 

[Tommy1005]

isn't the GHL downpipe different from the apex one? if i'm not mistaken i remember reading that the GHL downpipe replaces the s and j pipe where as the apex one is really just a midpipe. correct me if i'm wrong about anything i was too lazy to go back and reread to be sure.

The GHL is a true turbo back, but the Apex, like the Perrin also mentioned, is just the j-pipe back

 

[edaddeemsp]

How would the ghl have to ordered to get a very similar sound like the perrin? Also any price info on the ghl w/o cat and resonator? Any sound clip links for the 2. The only reason that I'm so set on one of these 2, is because of quality, and I want the 3 inch for h.p. goals. I've also seen perrins new website, and it has a exhaust selection for a downpipe. As i've seen in previous threads, perrin stated that the cost wasn't worth them making a s-pipe, input or info on that.

 

[terbow]

I see it like this, theyre both good exhausts. If *I* owned a company like that, if other companies offered an S pipe i wouldnt say Its not worth the time or money. I would either make it perform the same or better. On my own opinion for the S pipe, i cant say its going to Give major gains, it just doesnt seem plausable. It will eliminate some turbulence, and probably decrease spool time a bit cause the new S pipe isnt as contorted, its a smoother flow. So Overall it will benefit the turbocharger. But if you dont want to take the Stock S pipe off (which is a bit of a pain if your not REAL handy (by real handy i mean you can take it off without removing the turbo, which i couldnt do, i had to remove the mani and turbo, which isnt hard just takes longer), or if you dont want to spend the extra 300 then get the perrin. Its really up to you, but removing the J pipe and bumping it to 3" its going to give you the biggest gains anyhow.

Im finishing mine tommorow so ill try to get some sound clips. I dont know if any have been released yet. and to get it to sound like perrin it would be hard to guess cause they dont use the same mufflers / resonators (if any) as another company would. PLus i havent heard the perrin.

I think you will be happy with either setup. For me personally, Perrin and GHL have great customer support and are helpful. I got my GHL within 7 days, and they are really good about fixing anything wrong.

thats my ..02 cents

 

[Speed Vision]

Man, I really like this thread. After reading all of this, I think I'll probably go with the GHL S-pipe/DP combo with the optional 3in. flange. From there, I'll probably add the Thermal 3in. cat-back.

Bump for a hott topic...

 

[edaddeemsp]

I never thought that just by asking a question like this, that I could gain this much knowledge from so many people. I can't say which one i'll go with yet, until I see some h.p. #'s, and hear some sound clips though. Those that are more fortunate than me that get one of the 2 first, please help me decide .

 

[PERRIN_JOHN]

First let me start by thanking everyone for his or her nice comments. (cool) I will throw my 2 cents in and bow out.

GHL,iON>Perrin

They around same price, iON a little more, but Perrin has no true S-Pipe and has no Cats which isn't going to help us who live in NJ or Cali or someplace with strict emission standards.

QUOTE]

I am creating a FAQ section for our web site dedicated to off road only components. It should be up in a few days. It will include everything you ever wanted to know about emissions laws. I have found that most vendors and manufacturers are not familiar with federal law and are unintentionally passing bad information on to consumers.
In your case HAZEXBAN By federal law you cannot replace your catilitic converter, even with an aftermarket unit, for 8 years or 80 thousand miles. For this reason PERRIN Perforamance does not make an exhaust system for on road use. Our systems are meant to extract as much power as possible for the race vehicles they will be installed onto. A catalytic converter would be detrimental to that ultimate horsepower number.
Please check our web site legal section soon for an update.

We have decided not to pursue the production of a down pipe

Unfortunately the extreme close proximity of a 3 down pipe to the air conditioner compressor will have a serious effect on compressor longevity. Remember under hard driving this part can even glow red-hot!

The combination of low horsepower gains, questionable longevity for some vehicle systems, and a choice in either low product longevity or high MSRP has made our company choose not to produce this part. This particular part is not an item we feel we can 100% stand behind. I apologize to those who feel that they we are limiting their vehicles potential.

 

[hazeXban]

First let me start by thanking everyone for his or her nice comments. (cool) I will throw my 2 cents in and bow out.

GHL,iON>Perrin

They around same price, iON a little more, but Perrin has no true S-Pipe and has no Cats which isn't going to help us who live in NJ or Cali or someplace with strict emission standards.

QUOTE]

I am creating a FAQ section for our web site dedicated to off road only components. It should be up in a few days. It will include everything you ever wanted to know about emissions laws. I have found that most vendors and manufacturers are not familiar with federal law and are unintentionally passing bad information on to consumers.
In your case HAZEXBAN By federal law you cannot replace your catilitic converter, even with an aftermarket unit, for 8 years or 80 thousand miles. For this reason PERRIN Perforamance does not make an exhaust system for on road use. Our systems are meant to extract as much power as possible for the race vehicles they will be installed onto. A catalytic converter would be detrimental to that ultimate horsepower number.
Please check our web site legal section soon for an update.

We have decided not to pursue the production of a down pipe

Unfortunately the extreme close proximity of a 3 down pipe to the air conditioner compressor will have a serious effect on compressor longevity. Remember under hard driving this part can even glow red-hot!

The combination of low horsepower gains, questionable longevity for some vehicle systems, and a choice in either low product longevity or high MSRP has made our company choose not to produce this part. This particular part is not an item we feel we can 100% stand behind. I apologize to those who feel that they we are limiting their vehicles potential.

I hope you didn't think I was bashing your product(hand)

I was just trying to throw out some info. Thanks for the info though, I had no idea replacing your cat at all was "illegal."

Keep up the good work. (thumb)

 

[terbow]

yes it it illegal but on the other side of things, if you have a cat on your car, aftermarket or not, you wont get a fine. if they ask why its changed, your other one could have gotten damaged, then its legal to have a replacement, but if you have no cat, prepare to be ticketed or towed. it varies by state but i have seen it. im not saying which product is better, i like both ghl and perrin but the cops around here are strict in enforcing emissions laws, and id rather my car not smell when i get on it, that and its pollutes like a mofo.

 

[Tommy1005]

the car pollutes like a mofo whether there is a cat or not......just look at your tailpipe

 

[terbow]

thats running rich, thats not as much polution if theres no cat, the pollutants are things you cant see. its like a filtered and unfilterd cigarette. yea even filtered its bad for ya but unfiltered is worse. thats just my .02. i wont argue about it cause its everyones opinion, and id be a hypocrite if i said i never poluted. either way cops here dont like it and i dont want no fines, my car insurance is sky high as it is and i have no tix.

 

[PERRIN_JOHN]

yes it it illegal but on the other side of things, if you have a cat on your car, aftermarket or not, you wont get a fine. if they ask why its changed, your other one could have gotten damaged, then its legal to have a replacement, but if you have no cat, prepare to be ticketed or towed. it varies by state but i have seen it. im not saying which product is better, i like both ghl and perrin but the cops around here are strict in enforcing emissions laws, and id rather my car not smell when i get on it, that and its pollutes like a mofo.

Actually that is not entirely true. There is a paper work, which must be maintained and kept with the vehicle if you replace the cat before the end of its warranty period (8 years).
The new cat has to be EPA approved for the specific application and must be retained in its original location. I have just placed a quick question and answer page on our web site.

Hope fully it should answer a lot of questions for consumers.

http://www.perrinperformance.com/Customer_Support/Legal.htm#OR

 

[terbow]

i wasnt disagreeing, but in the real world (as in not on paper), if you have a cat, you wont get hassled, if it passes the sniffer test it will be good enough for an officer. (in most states) if you dont have a cat, you will most likely get pulled over, and possibly towed, and most likely ticketed. thats all i was saying. i know its more than just saying the old one was damaged, i didnt feel the need to elaborate because people will do what they want, if they want the most hp then catless is the way to go but for daily driving i wouldnt reccomend it, it pollutes and backfires and blah blah.

besides this post isnt about the legalities of the exhaust system so it should be kept on topic. so i wont say anything else about cats. im going to enjoy my perrin fuel rail damnit

 

[edaddeemsp]

perrin, this might be kinda strange to answer, but how would you match the 2 exhausts against each other. I know that you would like to say hands down that your exhaust is 10 times better, but could you give me reasons why? I personally like the perrin exhaust, with the muffler location, and the flanges better, but am being slowly pushed more toward the ghl, only due to the full-turbo back, w/cat. I might not like the price being higher or the way the pipes connect, but some do. Please elaborate on this subject a little. If you can give me reasons that the perrin is better, it might be the .02 that more people than myself need to purchase your product.