SPF Sidepipes. One more time!

[jhv48]

I have a new SPF with the Roush 427SRTW engine and the sidepipes seem to be strangling the engine at upper RPM's.

I've read all the threads about modifying the sidepipes but still have a question.

Who makes a complete sidepipe that I can bolt on to the headers (that has a 3 inch inside diameter muffler) and it has to be stainless steel to match the headers?

Second, if I get the Cobrapack Mufflers, and install them in place of the stainless mufflers that came with my car, how do I get them in stainless steel to match the rest of the exhaust system? The Cobrapack Mufflers only come in aluminized steel as far as I can tell.

Do I have to install them and then have the pipes ceramic coated?

And last, is there a shop in or near San Diego, that you guys recommend, that can do the cutting and welding if I choose to modify my existing sidepipes.

Truth be told, I would rather unbolt the old sidepipes and bolt on a new sidepipe that has a freer flowing muffler integrated in it, but am not against modifying the pipes I have if I can get them in stainless steel.

Thanks for your help. I finally got my FFR all sorted out after a year and a half and get to start all over again with a SPF. But not as much to change.

[RedBarchetta]

Jim, if money is not the issue and you want something that will simply bolt up, look outstanding and perform to your expectations, then you probably need to go this route and talk to Ron.

http://fireflyperformance.com/

I went the poor man's route, spec'd some custom mufflers, had a local race car chassis fabricator weld them in and then had a local coater do the ceramic re-coat. You will have $1,100 into the process if you go that path and just work the wrenches on your own. Ron is well above that, but then again you get what you pay for in life. His craftsmanship is top shelf.

-Dean

[Silverback51]

I went with Stainless Specialties and I'm very happy with the results.

http://www.stainless-specialties.com/products2a.htm

However, as Dean states, they are spendy.

[jhv48]

John, did you buy the side pipes complete or did you purchase one of their stainless mufflers and do the cutting and welding yourself?

[Silverback51]

Hello Jim,

I bought them complete. All I had to do was have the side supports welded up to the body mounts.

The noise level is pretty much the same at an idle and lower throttle inputs. It's deeper, but not much louder. However, when you flat foot it, it's considerably louder.

Jake has the same mufflers on his car, and this last weekend 6 of us took a little trip. At one point Jake was leading, and I was last in line. We were not tailgating each other, so I would guess there was a good 1/4 mile between us. Jake jumped on it to pass another car, and I could easily hear him in my car that far away.

However, if you want to free up 30 to 50 HP, this is a good way to do it.

[Jake]

John, you must have me confused with someone else. I would never pass at a high rate of speed. I do love the sound and tone of the mufflers. They are a bit loud so ear plugs or an I-Pod are good on more then a run around town. I actually think they sound better with the ear plugs in while driving.

Jake

[Tony Ripepi]

LOL LOL LOL

Thanks Dean....you sounded just Jamo.

TR